darkcomet | 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165

Processes:

free amongus no virus.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	free amongus no virus.exe

Modifies security service 2 TTPs 2 IoCs

evasion

Modify Registry

Modify Existing Service

T1031

Processes:

msdcsc.exeiexplore.exe

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

Windows security bypass 2 TTPs 4 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

Processes:

msdcsc.exeiexplore.exe

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

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

4452 msdcsc.exe
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

4580 attrib.exe
4176 attrib.exe

pid	process
4452	msdcsc.exe

pid	process
4580	attrib.exe
4176	attrib.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

T1082

Processes:

free amongus no virus.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	free amongus no virus.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

Processes:

msdcsc.exe

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

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

Processes:

msdcsc.exeiexplore.exefree amongus no virus.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\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	free amongus no virus.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description pid process target process

PID 4452 set thread context of 4476 4452 msdcsc.exe iexplore.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 4452 set thread context of 4476	4452	msdcsc.exe	iexplore.exe

Modifies registry class 1 IoCs

Processes:

free amongus no virus.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	free amongus no virus.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

iexplore.exe

pid process

4476 iexplore.exe

pid	process
4476	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

free amongus no virus.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4152	free amongus no virus.exe
Token: SeSecurityPrivilege	4152	free amongus no virus.exe
Token: SeTakeOwnershipPrivilege	4152	free amongus no virus.exe
Token: SeLoadDriverPrivilege	4152	free amongus no virus.exe
Token: SeSystemProfilePrivilege	4152	free amongus no virus.exe
Token: SeSystemtimePrivilege	4152	free amongus no virus.exe
Token: SeProfSingleProcessPrivilege	4152	free amongus no virus.exe
Token: SeIncBasePriorityPrivilege	4152	free amongus no virus.exe
Token: SeCreatePagefilePrivilege	4152	free amongus no virus.exe
Token: SeBackupPrivilege	4152	free amongus no virus.exe
Token: SeRestorePrivilege	4152	free amongus no virus.exe
Token: SeShutdownPrivilege	4152	free amongus no virus.exe
Token: SeDebugPrivilege	4152	free amongus no virus.exe
Token: SeSystemEnvironmentPrivilege	4152	free amongus no virus.exe
Token: SeChangeNotifyPrivilege	4152	free amongus no virus.exe
Token: SeRemoteShutdownPrivilege	4152	free amongus no virus.exe
Token: SeUndockPrivilege	4152	free amongus no virus.exe
Token: SeManageVolumePrivilege	4152	free amongus no virus.exe
Token: SeImpersonatePrivilege	4152	free amongus no virus.exe
Token: SeCreateGlobalPrivilege	4152	free amongus no virus.exe
Token: 33	4152	free amongus no virus.exe
Token: 34	4152	free amongus no virus.exe
Token: 35	4152	free amongus no virus.exe
Token: 36	4152	free amongus no virus.exe
Token: SeIncreaseQuotaPrivilege	4452	msdcsc.exe
Token: SeSecurityPrivilege	4452	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4452	msdcsc.exe
Token: SeLoadDriverPrivilege	4452	msdcsc.exe
Token: SeSystemProfilePrivilege	4452	msdcsc.exe
Token: SeSystemtimePrivilege	4452	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4452	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4452	msdcsc.exe
Token: SeCreatePagefilePrivilege	4452	msdcsc.exe
Token: SeBackupPrivilege	4452	msdcsc.exe
Token: SeRestorePrivilege	4452	msdcsc.exe
Token: SeShutdownPrivilege	4452	msdcsc.exe
Token: SeDebugPrivilege	4452	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4452	msdcsc.exe
Token: SeChangeNotifyPrivilege	4452	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4452	msdcsc.exe
Token: SeUndockPrivilege	4452	msdcsc.exe
Token: SeManageVolumePrivilege	4452	msdcsc.exe
Token: SeImpersonatePrivilege	4452	msdcsc.exe
Token: SeCreateGlobalPrivilege	4452	msdcsc.exe
Token: 33	4452	msdcsc.exe
Token: 34	4452	msdcsc.exe
Token: 35	4452	msdcsc.exe
Token: 36	4452	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	4476	iexplore.exe
Token: SeSecurityPrivilege	4476	iexplore.exe
Token: SeTakeOwnershipPrivilege	4476	iexplore.exe
Token: SeLoadDriverPrivilege	4476	iexplore.exe
Token: SeSystemProfilePrivilege	4476	iexplore.exe
Token: SeSystemtimePrivilege	4476	iexplore.exe
Token: SeProfSingleProcessPrivilege	4476	iexplore.exe
Token: SeIncBasePriorityPrivilege	4476	iexplore.exe
Token: SeCreatePagefilePrivilege	4476	iexplore.exe
Token: SeBackupPrivilege	4476	iexplore.exe
Token: SeRestorePrivilege	4476	iexplore.exe
Token: SeShutdownPrivilege	4476	iexplore.exe
Token: SeDebugPrivilege	4476	iexplore.exe
Token: SeSystemEnvironmentPrivilege	4476	iexplore.exe
Token: SeChangeNotifyPrivilege	4476	iexplore.exe
Token: SeRemoteShutdownPrivilege	4476	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid process

4476 iexplore.exe

pid	process
4476	iexplore.exe

Suspicious use of WriteProcessMemory 59 IoCs

Processes:

free amongus no virus.execmd.execmd.exemsdcsc.exeiexplore.exe

description	pid	process	target process
PID 4152 wrote to memory of 4444	4152	free amongus no virus.exe	cmd.exe
PID 4152 wrote to memory of 4444	4152	free amongus no virus.exe	cmd.exe
PID 4152 wrote to memory of 4444	4152	free amongus no virus.exe	cmd.exe
PID 4152 wrote to memory of 4692	4152	free amongus no virus.exe	cmd.exe
PID 4152 wrote to memory of 4692	4152	free amongus no virus.exe	cmd.exe
PID 4152 wrote to memory of 4692	4152	free amongus no virus.exe	cmd.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4152 wrote to memory of 4752	4152	free amongus no virus.exe	notepad.exe
PID 4444 wrote to memory of 4176	4444	cmd.exe	attrib.exe
PID 4444 wrote to memory of 4176	4444	cmd.exe	attrib.exe
PID 4444 wrote to memory of 4176	4444	cmd.exe	attrib.exe
PID 4692 wrote to memory of 4580	4692	cmd.exe	attrib.exe
PID 4692 wrote to memory of 4580	4692	cmd.exe	attrib.exe
PID 4692 wrote to memory of 4580	4692	cmd.exe	attrib.exe
PID 4152 wrote to memory of 4452	4152	free amongus no virus.exe	msdcsc.exe
PID 4152 wrote to memory of 4452	4152	free amongus no virus.exe	msdcsc.exe
PID 4152 wrote to memory of 4452	4152	free amongus no virus.exe	msdcsc.exe
PID 4452 wrote to memory of 4476	4452	msdcsc.exe	iexplore.exe
PID 4452 wrote to memory of 4476	4452	msdcsc.exe	iexplore.exe
PID 4452 wrote to memory of 4476	4452	msdcsc.exe	iexplore.exe
PID 4452 wrote to memory of 4476	4452	msdcsc.exe	iexplore.exe
PID 4452 wrote to memory of 4476	4452	msdcsc.exe	iexplore.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe
PID 4476 wrote to memory of 2492	4476	iexplore.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

Processes:

msdcsc.exe

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

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

4580 attrib.exe
4176 attrib.exe

pid	process
4580	attrib.exe
4176	attrib.exe

C:\Users\Admin\AppData\Local\Temp\free amongus no virus.exe
"C:\Users\Admin\AppData\Local\Temp\free amongus no virus.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:4152

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\free amongus no virus.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:4444

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\free amongus no virus.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:4176

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:4692

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:4580

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
PID:4752

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Modifies security service
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4452

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
- Modifies security service
- Windows security bypass
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4476

C:\Windows\SysWOW64\notepad.exe
notepad
4⤵
PID:2492

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