darkcomet | 49c8f9abd3387aa12e086db48e28ddab4d0d8df662a1eb37a9a8fde18be19b5c

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\\Temp\\MSDCSC\\msdcsc.exe"	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe

Modifies firewall policy service 3 TTPs 3 IoCs

Modify Registry

Windows Service

Disable or Modify System Firewall

T1562.004

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

Modify Registry

Windows Service

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

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

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe

Executes dropped EXE 1 IoCs

pid	Process
2884	msdcsc.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

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 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2884	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeSecurityPrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeTakeOwnershipPrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeLoadDriverPrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeSystemProfilePrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeSystemtimePrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeProfSingleProcessPrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeIncBasePriorityPrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeCreatePagefilePrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeBackupPrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeRestorePrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeShutdownPrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeDebugPrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeSystemEnvironmentPrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeChangeNotifyPrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeRemoteShutdownPrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeUndockPrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeManageVolumePrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeImpersonatePrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeCreateGlobalPrivilege	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: 33	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: 34	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: 35	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: 36	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
Token: SeIncreaseQuotaPrivilege	2884	msdcsc.exe
Token: SeSecurityPrivilege	2884	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2884	msdcsc.exe
Token: SeLoadDriverPrivilege	2884	msdcsc.exe
Token: SeSystemProfilePrivilege	2884	msdcsc.exe
Token: SeSystemtimePrivilege	2884	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2884	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2884	msdcsc.exe
Token: SeCreatePagefilePrivilege	2884	msdcsc.exe
Token: SeBackupPrivilege	2884	msdcsc.exe
Token: SeRestorePrivilege	2884	msdcsc.exe
Token: SeShutdownPrivilege	2884	msdcsc.exe
Token: SeDebugPrivilege	2884	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2884	msdcsc.exe
Token: SeChangeNotifyPrivilege	2884	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2884	msdcsc.exe
Token: SeUndockPrivilege	2884	msdcsc.exe
Token: SeManageVolumePrivilege	2884	msdcsc.exe
Token: SeImpersonatePrivilege	2884	msdcsc.exe
Token: SeCreateGlobalPrivilege	2884	msdcsc.exe
Token: 33	2884	msdcsc.exe
Token: 34	2884	msdcsc.exe
Token: 35	2884	msdcsc.exe
Token: 36	2884	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2884	msdcsc.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1272 wrote to memory of 2884	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe	81
PID 1272 wrote to memory of 2884	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe	81
PID 1272 wrote to memory of 2884	1272	JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe	81
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82
PID 2884 wrote to memory of 2812	2884	msdcsc.exe	82

System policy modification 1 TTPs 3 IoCs

Modify Registry

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

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_76ca3ef2913b847bf23beb42c22ed6f0.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1272
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:2884
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

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

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry