darkcomet | 802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94

Processes:

802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.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\\Local\\Microsoft\\Windows\\INetCookies\\MSDCSC\\msdcsc.exe"	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Modify Existing Service
T1031

Processes:

msdcsc.exe

description ioc process

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

Disabling Security Tools
T1089

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

Processes:

msdcsc.exe

pid process

992 msdcsc.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"	msdcsc.exe

pid	process
992	msdcsc.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:

802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\International\Geo\Nation	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.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\UpdatesDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

Processes:

msdcsc.exe802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\Owo Para = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\Windows\\INetCookies\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\Owo Para = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\Windows\\INetCookies\\MSDCSC\\msdcsc.exe"	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.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:

802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeSecurityPrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeTakeOwnershipPrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeLoadDriverPrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeSystemProfilePrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeSystemtimePrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeProfSingleProcessPrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeIncBasePriorityPrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeCreatePagefilePrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeBackupPrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeRestorePrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeShutdownPrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeDebugPrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeSystemEnvironmentPrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeChangeNotifyPrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeRemoteShutdownPrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeUndockPrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeManageVolumePrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeImpersonatePrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeCreateGlobalPrivilege	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: 33	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: 34	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: 35	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: 36	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeIncreaseQuotaPrivilege	992	msdcsc.exe
Token: SeSecurityPrivilege	992	msdcsc.exe
Token: SeTakeOwnershipPrivilege	992	msdcsc.exe
Token: SeLoadDriverPrivilege	992	msdcsc.exe
Token: SeSystemProfilePrivilege	992	msdcsc.exe
Token: SeSystemtimePrivilege	992	msdcsc.exe
Token: SeProfSingleProcessPrivilege	992	msdcsc.exe
Token: SeIncBasePriorityPrivilege	992	msdcsc.exe
Token: SeCreatePagefilePrivilege	992	msdcsc.exe
Token: SeBackupPrivilege	992	msdcsc.exe
Token: SeRestorePrivilege	992	msdcsc.exe
Token: SeShutdownPrivilege	992	msdcsc.exe
Token: SeDebugPrivilege	992	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	992	msdcsc.exe
Token: SeChangeNotifyPrivilege	992	msdcsc.exe
Token: SeRemoteShutdownPrivilege	992	msdcsc.exe
Token: SeUndockPrivilege	992	msdcsc.exe
Token: SeManageVolumePrivilege	992	msdcsc.exe
Token: SeImpersonatePrivilege	992	msdcsc.exe
Token: SeCreateGlobalPrivilege	992	msdcsc.exe
Token: 33	992	msdcsc.exe
Token: 34	992	msdcsc.exe
Token: 35	992	msdcsc.exe
Token: 36	992	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

992 msdcsc.exe

pid	process
992	msdcsc.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 744 wrote to memory of 3176	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	cmd.exe
PID 744 wrote to memory of 3176	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	cmd.exe
PID 744 wrote to memory of 3176	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	cmd.exe
PID 744 wrote to memory of 2772	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	cmd.exe
PID 744 wrote to memory of 2772	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	cmd.exe
PID 744 wrote to memory of 2772	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	cmd.exe
PID 3176 wrote to memory of 1072	3176	cmd.exe	attrib.exe
PID 3176 wrote to memory of 1072	3176	cmd.exe	attrib.exe
PID 3176 wrote to memory of 1072	3176	cmd.exe	attrib.exe
PID 2772 wrote to memory of 1864	2772	cmd.exe	attrib.exe
PID 2772 wrote to memory of 1864	2772	cmd.exe	attrib.exe
PID 2772 wrote to memory of 1864	2772	cmd.exe	attrib.exe
PID 744 wrote to memory of 992	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	msdcsc.exe
PID 744 wrote to memory of 992	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	msdcsc.exe
PID 744 wrote to memory of 992	744	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	msdcsc.exe
PID 992 wrote to memory of 4092	992	msdcsc.exe	iexplore.exe
PID 992 wrote to memory of 4092	992	msdcsc.exe	iexplore.exe
PID 992 wrote to memory of 4092	992	msdcsc.exe	iexplore.exe
PID 992 wrote to memory of 3384	992	msdcsc.exe	explorer.exe
PID 992 wrote to memory of 3384	992	msdcsc.exe	explorer.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.exe	notepad.exe
PID 992 wrote to memory of 2452	992	msdcsc.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

1864 attrib.exe
1072 attrib.exe

pid	process
1864	attrib.exe
1072	attrib.exe

C:\Users\Admin\AppData\Local\Temp\802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
"C:\Users\Admin\AppData\Local\Temp\802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.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:744

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:3176

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe" +s +h
3⤵
- Views/modifies file attributes
PID:1072

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:2772

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Views/modifies file attributes
PID:1864

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\MSDCSC\msdcsc.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:992

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
PID:4092

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
3⤵
PID:3384

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:2452

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