darkcomet | 1ed406800fe84b02e902fe982675094fe87416d6d611f92da2fc335c626ebc9f

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe"	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	winupdate.exe

Disables Task Manager via registry modification
evasion

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	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
2792	winupdate.exe

Loads dropped DLL 4 IoCs

pid	Process
2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
2792	winupdate.exe
2792	winupdate.exe
2792	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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	f75078e54038127175a9427a97a7a18a_JaffaCakes118.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 2 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	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	f75078e54038127175a9427a97a7a18a_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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	f75078e54038127175a9427a97a7a18a_JaffaCakes118.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	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupdate.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeSecurityPrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeBackupPrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeRestorePrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeShutdownPrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeDebugPrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeUndockPrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: 33	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: 34	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: 35	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2792	winupdate.exe
Token: SeSecurityPrivilege	2792	winupdate.exe
Token: SeTakeOwnershipPrivilege	2792	winupdate.exe
Token: SeLoadDriverPrivilege	2792	winupdate.exe
Token: SeSystemProfilePrivilege	2792	winupdate.exe
Token: SeSystemtimePrivilege	2792	winupdate.exe
Token: SeProfSingleProcessPrivilege	2792	winupdate.exe
Token: SeIncBasePriorityPrivilege	2792	winupdate.exe
Token: SeCreatePagefilePrivilege	2792	winupdate.exe
Token: SeBackupPrivilege	2792	winupdate.exe
Token: SeRestorePrivilege	2792	winupdate.exe
Token: SeShutdownPrivilege	2792	winupdate.exe
Token: SeDebugPrivilege	2792	winupdate.exe
Token: SeSystemEnvironmentPrivilege	2792	winupdate.exe
Token: SeChangeNotifyPrivilege	2792	winupdate.exe
Token: SeRemoteShutdownPrivilege	2792	winupdate.exe
Token: SeUndockPrivilege	2792	winupdate.exe
Token: SeManageVolumePrivilege	2792	winupdate.exe
Token: SeImpersonatePrivilege	2792	winupdate.exe
Token: SeCreateGlobalPrivilege	2792	winupdate.exe
Token: 33	2792	winupdate.exe
Token: 34	2792	winupdate.exe
Token: 35	2792	winupdate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2792	winupdate.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 2712	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe	31
PID 2860 wrote to memory of 2712	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe	31
PID 2860 wrote to memory of 2712	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe	31
PID 2860 wrote to memory of 2712	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe	31
PID 2860 wrote to memory of 2792	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe	32
PID 2860 wrote to memory of 2792	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe	32
PID 2860 wrote to memory of 2792	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe	32
PID 2860 wrote to memory of 2792	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe	32
PID 2860 wrote to memory of 2792	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe	32
PID 2860 wrote to memory of 2792	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe	32
PID 2860 wrote to memory of 2792	2860	f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe	32
PID 2792 wrote to memory of 2688	2792	winupdate.exe	33
PID 2792 wrote to memory of 2688	2792	winupdate.exe	33
PID 2792 wrote to memory of 2688	2792	winupdate.exe	33
PID 2792 wrote to memory of 2688	2792	winupdate.exe	33
PID 2792 wrote to memory of 2688	2792	winupdate.exe	33
PID 2792 wrote to memory of 2688	2792	winupdate.exe	33
PID 2792 wrote to memory of 2688	2792	winupdate.exe	33

System policy modification 1 TTPs 3 IoCs

evasion

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\f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f75078e54038127175a9427a97a7a18a_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Loads dropped DLL
- Adds Run key to start application
- 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:2860
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  PID:2712
- C:\Windupdt\winupdate.exe
  "C:\Windupdt\winupdate.exe"
  2⤵
  - Modifies security service
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:2792
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    PID:2688

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

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

Credential Access

Discovery

Query Registry

System Information Discovery