darkcomet | 92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3

Processes:

92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Roaming\\app\\update.exe"	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Modify Existing Service
T1031

Processes:

update.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" update.exe
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Disables RegEdit via registry modification
evasion
Executes dropped EXE 1 IoCs

Processes:

update.exe

pid process

4172 update.exe
Sets file to hidden 1 TTPs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	update.exe

pid	process
4172	update.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\app\update.exe	upx
C:\Users\Admin\AppData\Roaming\app\update.exe	upx

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

Processes:

update.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	update.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	update.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

Processes:

92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exeupdate.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\app\\update.exe"	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\app\\update.exe"	update.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exeupdate.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeSecurityPrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeTakeOwnershipPrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeLoadDriverPrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeSystemProfilePrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeSystemtimePrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeProfSingleProcessPrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeIncBasePriorityPrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeCreatePagefilePrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeBackupPrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeRestorePrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeShutdownPrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeDebugPrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeSystemEnvironmentPrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeChangeNotifyPrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeRemoteShutdownPrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeUndockPrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeManageVolumePrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeImpersonatePrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeCreateGlobalPrivilege	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: 33	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: 34	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: 35	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: 36	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
Token: SeIncreaseQuotaPrivilege	4172	update.exe
Token: SeSecurityPrivilege	4172	update.exe
Token: SeTakeOwnershipPrivilege	4172	update.exe
Token: SeLoadDriverPrivilege	4172	update.exe
Token: SeSystemProfilePrivilege	4172	update.exe
Token: SeSystemtimePrivilege	4172	update.exe
Token: SeProfSingleProcessPrivilege	4172	update.exe
Token: SeIncBasePriorityPrivilege	4172	update.exe
Token: SeCreatePagefilePrivilege	4172	update.exe
Token: SeBackupPrivilege	4172	update.exe
Token: SeRestorePrivilege	4172	update.exe
Token: SeShutdownPrivilege	4172	update.exe
Token: SeDebugPrivilege	4172	update.exe
Token: SeSystemEnvironmentPrivilege	4172	update.exe
Token: SeChangeNotifyPrivilege	4172	update.exe
Token: SeRemoteShutdownPrivilege	4172	update.exe
Token: SeUndockPrivilege	4172	update.exe
Token: SeManageVolumePrivilege	4172	update.exe
Token: SeImpersonatePrivilege	4172	update.exe
Token: SeCreateGlobalPrivilege	4172	update.exe
Token: 33	4172	update.exe
Token: 34	4172	update.exe
Token: 35	4172	update.exe
Token: 36	4172	update.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

update.exe

pid process

4172 update.exe

pid	process
4172	update.exe

Suspicious use of WriteProcessMemory 54 IoCs

Processes:

92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.execmd.execmd.exeupdate.exe

description	pid	process	target process
PID 1228 wrote to memory of 3164	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	cmd.exe
PID 1228 wrote to memory of 3164	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	cmd.exe
PID 1228 wrote to memory of 3164	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	cmd.exe
PID 1228 wrote to memory of 3244	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	cmd.exe
PID 1228 wrote to memory of 3244	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	cmd.exe
PID 1228 wrote to memory of 3244	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	cmd.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 1228 wrote to memory of 2516	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	notepad.exe
PID 3164 wrote to memory of 3232	3164	cmd.exe	attrib.exe
PID 3164 wrote to memory of 3232	3164	cmd.exe	attrib.exe
PID 3164 wrote to memory of 3232	3164	cmd.exe	attrib.exe
PID 3244 wrote to memory of 2664	3244	cmd.exe	attrib.exe
PID 3244 wrote to memory of 2664	3244	cmd.exe	attrib.exe
PID 3244 wrote to memory of 2664	3244	cmd.exe	attrib.exe
PID 1228 wrote to memory of 4172	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	update.exe
PID 1228 wrote to memory of 4172	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	update.exe
PID 1228 wrote to memory of 4172	1228	92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe	update.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe
PID 4172 wrote to memory of 2624	4172	update.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

Processes:

update.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	update.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	update.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	update.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

3232 attrib.exe
2664 attrib.exe

pid	process
3232	attrib.exe
2664	attrib.exe

C:\Users\Admin\AppData\Local\Temp\92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe
"C:\Users\Admin\AppData\Local\Temp\92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1228

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:3164

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\92760963e6eb5e27406510ce615900b7dd6d2ff618cd88f799bf0cb9ac387bb3.exe" +s +h
3⤵
- Views/modifies file attributes
PID:3232

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:3244

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Views/modifies file attributes
PID:2664

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
PID:2516

C:\Users\Admin\AppData\Roaming\app\update.exe
"C:\Users\Admin\AppData\Roaming\app\update.exe"
2⤵
- Modifies security service
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4172

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:2624

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Modify Existing Service

T1031

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

6

Disabling Security Tools

T1089

Hidden Files and Directories

T1158

Credential Access

Discovery

Query Registry

T1012

System Information Discovery