darkcomet | cdcff159a39016096b8e853db27c3769c74a2701cc8f5449c560f635c0f1eb49

Processes:

Encryptado.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\\MSDCSC\\msdcsc.exe"	Encryptado.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

Windows Service

T1543.003

Processes:

msdcsc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.exe

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Windows Service
T1543.003

Processes:

msdcsc.exe

description ioc process

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

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

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

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

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

msdcsc.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	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
T1564.001

Processes:

attrib.exeattrib.exe

pid process

4748 attrib.exe
4656 attrib.exe

pid	process
4748	attrib.exe
4656	attrib.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

4971cbda2ce4bdf86dec04ac74312294_JaffaCakes118.exeEncryptado.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	4971cbda2ce4bdf86dec04ac74312294_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	Encryptado.exe

Executes dropped EXE 2 IoCs

Processes:

Encryptado.exemsdcsc.exe

pid process

4884 Encryptado.exe
768 msdcsc.exe

pid	process
4884	Encryptado.exe
768	msdcsc.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

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

T1547.001

Modify Registry

Processes:

Encryptado.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	Encryptado.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

System Information Discovery
T1082
Modifies registry class 1 IoCs

Processes:

Encryptado.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Encryptado.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

768 msdcsc.exe

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

pid	process
768	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

Encryptado.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4884	Encryptado.exe
Token: SeSecurityPrivilege	4884	Encryptado.exe
Token: SeTakeOwnershipPrivilege	4884	Encryptado.exe
Token: SeLoadDriverPrivilege	4884	Encryptado.exe
Token: SeSystemProfilePrivilege	4884	Encryptado.exe
Token: SeSystemtimePrivilege	4884	Encryptado.exe
Token: SeProfSingleProcessPrivilege	4884	Encryptado.exe
Token: SeIncBasePriorityPrivilege	4884	Encryptado.exe
Token: SeCreatePagefilePrivilege	4884	Encryptado.exe
Token: SeBackupPrivilege	4884	Encryptado.exe
Token: SeRestorePrivilege	4884	Encryptado.exe
Token: SeShutdownPrivilege	4884	Encryptado.exe
Token: SeDebugPrivilege	4884	Encryptado.exe
Token: SeSystemEnvironmentPrivilege	4884	Encryptado.exe
Token: SeChangeNotifyPrivilege	4884	Encryptado.exe
Token: SeRemoteShutdownPrivilege	4884	Encryptado.exe
Token: SeUndockPrivilege	4884	Encryptado.exe
Token: SeManageVolumePrivilege	4884	Encryptado.exe
Token: SeImpersonatePrivilege	4884	Encryptado.exe
Token: SeCreateGlobalPrivilege	4884	Encryptado.exe
Token: 33	4884	Encryptado.exe
Token: 34	4884	Encryptado.exe
Token: 35	4884	Encryptado.exe
Token: 36	4884	Encryptado.exe
Token: SeIncreaseQuotaPrivilege	768	msdcsc.exe
Token: SeSecurityPrivilege	768	msdcsc.exe
Token: SeTakeOwnershipPrivilege	768	msdcsc.exe
Token: SeLoadDriverPrivilege	768	msdcsc.exe
Token: SeSystemProfilePrivilege	768	msdcsc.exe
Token: SeSystemtimePrivilege	768	msdcsc.exe
Token: SeProfSingleProcessPrivilege	768	msdcsc.exe
Token: SeIncBasePriorityPrivilege	768	msdcsc.exe
Token: SeCreatePagefilePrivilege	768	msdcsc.exe
Token: SeBackupPrivilege	768	msdcsc.exe
Token: SeRestorePrivilege	768	msdcsc.exe
Token: SeShutdownPrivilege	768	msdcsc.exe
Token: SeDebugPrivilege	768	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	768	msdcsc.exe
Token: SeChangeNotifyPrivilege	768	msdcsc.exe
Token: SeRemoteShutdownPrivilege	768	msdcsc.exe
Token: SeUndockPrivilege	768	msdcsc.exe
Token: SeManageVolumePrivilege	768	msdcsc.exe
Token: SeImpersonatePrivilege	768	msdcsc.exe
Token: SeCreateGlobalPrivilege	768	msdcsc.exe
Token: 33	768	msdcsc.exe
Token: 34	768	msdcsc.exe
Token: 35	768	msdcsc.exe
Token: 36	768	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

768 msdcsc.exe

pid	process
768	msdcsc.exe

Suspicious use of WriteProcessMemory 57 IoCs

Processes:

4971cbda2ce4bdf86dec04ac74312294_JaffaCakes118.exeEncryptado.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 5088 wrote to memory of 4884	5088	4971cbda2ce4bdf86dec04ac74312294_JaffaCakes118.exe	Encryptado.exe
PID 5088 wrote to memory of 4884	5088	4971cbda2ce4bdf86dec04ac74312294_JaffaCakes118.exe	Encryptado.exe
PID 5088 wrote to memory of 4884	5088	4971cbda2ce4bdf86dec04ac74312294_JaffaCakes118.exe	Encryptado.exe
PID 4884 wrote to memory of 4428	4884	Encryptado.exe	cmd.exe
PID 4884 wrote to memory of 4428	4884	Encryptado.exe	cmd.exe
PID 4884 wrote to memory of 4428	4884	Encryptado.exe	cmd.exe
PID 4884 wrote to memory of 1684	4884	Encryptado.exe	cmd.exe
PID 4884 wrote to memory of 1684	4884	Encryptado.exe	cmd.exe
PID 4884 wrote to memory of 1684	4884	Encryptado.exe	cmd.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4884 wrote to memory of 4896	4884	Encryptado.exe	notepad.exe
PID 4428 wrote to memory of 4748	4428	cmd.exe	attrib.exe
PID 4428 wrote to memory of 4748	4428	cmd.exe	attrib.exe
PID 4428 wrote to memory of 4748	4428	cmd.exe	attrib.exe
PID 1684 wrote to memory of 4656	1684	cmd.exe	attrib.exe
PID 1684 wrote to memory of 4656	1684	cmd.exe	attrib.exe
PID 1684 wrote to memory of 4656	1684	cmd.exe	attrib.exe
PID 4884 wrote to memory of 768	4884	Encryptado.exe	msdcsc.exe
PID 4884 wrote to memory of 768	4884	Encryptado.exe	msdcsc.exe
PID 4884 wrote to memory of 768	4884	Encryptado.exe	msdcsc.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe
PID 768 wrote to memory of 2244	768	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

4748 attrib.exe
4656 attrib.exe

pid	process
4748	attrib.exe
4656	attrib.exe

C:\Users\Admin\AppData\Local\Temp\4971cbda2ce4bdf86dec04ac74312294_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4971cbda2ce4bdf86dec04ac74312294_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5088

C:\Users\Admin\AppData\Local\Temp\Encryptado.exe
"C:\Users\Admin\AppData\Local\Temp\Encryptado.exe"
2⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4884

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Encryptado.exe" +s +h
3⤵
- Suspicious use of WriteProcessMemory
PID:4428

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\Encryptado.exe" +s +h
4⤵
- Sets file to hidden
- Views/modifies file attributes
PID:4748

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Suspicious use of WriteProcessMemory
PID:1684

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
4⤵
- Sets file to hidden
- Views/modifies file attributes
PID:4656

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:4896

C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
3⤵
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- Disables RegEdit via registry modification
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:768

C:\Windows\SysWOW64\notepad.exe
notepad
4⤵
PID:2244

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

6

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

Query Registry

T1012

System Information Discovery