darkcomet | 99356d20505fff841ef2e0f306702d5115cbab21e428c63ae9b984ae481d98e0

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\Windupdt\\winupdate.exe"	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.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	winupdate.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "1"	winupdate.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	winupdate.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"	winupdate.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\UpdatesDisableNotify = "1"	winupdate.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	winupdate.exe

Disables RegEdit via registry modification 1 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	winupdate.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winupdate.exe

Executes dropped EXE 2 IoCs

pid	Process
2448	winupdate.exe
2140	winupdate.exe

Loads dropped DLL 8 IoCs

pid	Process
2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
2448	winupdate.exe
2448	winupdate.exe
2448	winupdate.exe
2448	winupdate.exe
2140	winupdate.exe
2140	winupdate.exe
2140	winupdate.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"	winupdate.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	winupdate.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\Windupdt\\winupdate.exe"	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 368 set thread context of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 2448 set thread context of 2140	2448	winupdate.exe	33

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\Windupdt\winupdate.exe	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
File opened for modification	C:\Windows\Windupdt\winupdate.exe	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
File opened for modification	C:\Windows\Windupdt\	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
File opened for modification	C:\Windows\Windupdt\winupdate.exe	winupdate.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 4 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	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe

Checks processor information in registry 2 TTPs 8 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	winupdate.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupdate.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2140	winupdate.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeSecurityPrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeBackupPrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeRestorePrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeShutdownPrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeDebugPrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeUndockPrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: 33	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: 34	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: 35	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
Token: SeRestorePrivilege	2448	winupdate.exe
Token: SeBackupPrivilege	2448	winupdate.exe
Token: SeIncreaseQuotaPrivilege	2140	winupdate.exe
Token: SeSecurityPrivilege	2140	winupdate.exe
Token: SeTakeOwnershipPrivilege	2140	winupdate.exe
Token: SeLoadDriverPrivilege	2140	winupdate.exe
Token: SeSystemProfilePrivilege	2140	winupdate.exe
Token: SeSystemtimePrivilege	2140	winupdate.exe
Token: SeProfSingleProcessPrivilege	2140	winupdate.exe
Token: SeIncBasePriorityPrivilege	2140	winupdate.exe
Token: SeCreatePagefilePrivilege	2140	winupdate.exe
Token: SeBackupPrivilege	2140	winupdate.exe
Token: SeRestorePrivilege	2140	winupdate.exe
Token: SeShutdownPrivilege	2140	winupdate.exe
Token: SeDebugPrivilege	2140	winupdate.exe
Token: SeSystemEnvironmentPrivilege	2140	winupdate.exe
Token: SeChangeNotifyPrivilege	2140	winupdate.exe
Token: SeRemoteShutdownPrivilege	2140	winupdate.exe
Token: SeUndockPrivilege	2140	winupdate.exe
Token: SeManageVolumePrivilege	2140	winupdate.exe
Token: SeImpersonatePrivilege	2140	winupdate.exe
Token: SeCreateGlobalPrivilege	2140	winupdate.exe
Token: 33	2140	winupdate.exe
Token: 34	2140	winupdate.exe
Token: 35	2140	winupdate.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
2448	winupdate.exe
2448	winupdate.exe
2140	winupdate.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 368 wrote to memory of 2188	368	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	31
PID 2188 wrote to memory of 2448	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	32
PID 2188 wrote to memory of 2448	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	32
PID 2188 wrote to memory of 2448	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	32
PID 2188 wrote to memory of 2448	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	32
PID 2188 wrote to memory of 2448	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	32
PID 2188 wrote to memory of 2448	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	32
PID 2188 wrote to memory of 2448	2188	8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe	32
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33
PID 2448 wrote to memory of 2140	2448	winupdate.exe	33

System policy modification 1 TTPs 3 IoCs

Modify Registry

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

C:\Users\Admin\AppData\Local\Temp\8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:368
- C:\Users\Admin\AppData\Local\Temp\8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\8cfc5e80361a0524a480e3c58092cc7f_JaffaCakes118.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks BIOS information in registry
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2188
- - C:\Windows\Windupdt\winupdate.exe
    "C:\Windows\Windupdt\winupdate.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2448
  - - C:\Windows\Windupdt\winupdate.exe
      C:\Windows\Windupdt\winupdate.exe
      4⤵
      Modifies firewall policy service
      Modifies security service
      Windows security bypass
      Disables RegEdit via registry modification
      Checks BIOS information in registry
      Executes dropped EXE
      Loads dropped DLL
      Windows security modification
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Enumerates system info in registry
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      System policy modification
      PID:2140

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

Credential Access

Discovery

Query Registry

System Information Discovery