darkcomet | 1dcd09d5ff5fe681763a198c451a98a24c6d66f210eedb6f06f0aacf5c75251e

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe"	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe

Modifies firewall policy service 3 TTPs 3 IoCs

evasion

Modify Registry

Windows Service

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	winupdate.exe
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

Modifies security service 2 TTPs 1 IoCs

evasion

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\AntiVirusDisableNotify = "1"	winupdate.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	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	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winupdate.exe

Executes dropped EXE 2 IoCs

pid	Process
2584	winupdate.exe
2544	winupdate.exe

Loads dropped DLL 8 IoCs

pid	Process
2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
2584	winupdate.exe
2584	winupdate.exe
2584	winupdate.exe
2584	winupdate.exe
2544	winupdate.exe
2544	winupdate.exe
2544	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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2212 set thread context of 2784	2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	30
PID 2584 set thread context of 2544	2584	winupdate.exe	32

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	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	f4e3858a6edb70810de5f7f57f40faed_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	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupdate.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2544	winupdate.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeSecurityPrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeBackupPrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeRestorePrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeShutdownPrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeDebugPrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeUndockPrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: 33	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: 34	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: 35	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2544	winupdate.exe
Token: SeSecurityPrivilege	2544	winupdate.exe
Token: SeTakeOwnershipPrivilege	2544	winupdate.exe
Token: SeLoadDriverPrivilege	2544	winupdate.exe
Token: SeSystemProfilePrivilege	2544	winupdate.exe
Token: SeSystemtimePrivilege	2544	winupdate.exe
Token: SeProfSingleProcessPrivilege	2544	winupdate.exe
Token: SeIncBasePriorityPrivilege	2544	winupdate.exe
Token: SeCreatePagefilePrivilege	2544	winupdate.exe
Token: SeBackupPrivilege	2544	winupdate.exe
Token: SeRestorePrivilege	2544	winupdate.exe
Token: SeShutdownPrivilege	2544	winupdate.exe
Token: SeDebugPrivilege	2544	winupdate.exe
Token: SeSystemEnvironmentPrivilege	2544	winupdate.exe
Token: SeChangeNotifyPrivilege	2544	winupdate.exe
Token: SeRemoteShutdownPrivilege	2544	winupdate.exe
Token: SeUndockPrivilege	2544	winupdate.exe
Token: SeManageVolumePrivilege	2544	winupdate.exe
Token: SeImpersonatePrivilege	2544	winupdate.exe
Token: SeCreateGlobalPrivilege	2544	winupdate.exe
Token: 33	2544	winupdate.exe
Token: 34	2544	winupdate.exe
Token: 35	2544	winupdate.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
2584	winupdate.exe
2544	winupdate.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 2784	2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	30
PID 2212 wrote to memory of 2784	2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	30
PID 2212 wrote to memory of 2784	2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	30
PID 2212 wrote to memory of 2784	2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	30
PID 2212 wrote to memory of 2784	2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	30
PID 2212 wrote to memory of 2784	2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	30
PID 2212 wrote to memory of 2784	2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	30
PID 2212 wrote to memory of 2784	2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	30
PID 2212 wrote to memory of 2784	2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	30
PID 2212 wrote to memory of 2784	2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	30
PID 2212 wrote to memory of 2784	2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	30
PID 2212 wrote to memory of 2784	2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	30
PID 2212 wrote to memory of 2784	2212	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	30
PID 2784 wrote to memory of 2584	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	31
PID 2784 wrote to memory of 2584	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	31
PID 2784 wrote to memory of 2584	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	31
PID 2784 wrote to memory of 2584	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	31
PID 2784 wrote to memory of 2584	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	31
PID 2784 wrote to memory of 2584	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	31
PID 2784 wrote to memory of 2584	2784	f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe	31
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32
PID 2584 wrote to memory of 2544	2584	winupdate.exe	32

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

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

C:\Users\Admin\AppData\Local\Temp\f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Users\Admin\AppData\Local\Temp\f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118.exe"
  2⤵
  - 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:2784
- - C:\Windupdt\winupdate.exe
    "C:\Windupdt\winupdate.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2584
  - - C:\Windupdt\winupdate.exe
      "C:\Windupdt\winupdate.exe"
      4⤵
      Modifies firewall policy service
      Modifies security service
      Windows security bypass
      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:2544

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