darkcomet | 4ff386229ef281c9f6c9e132da624369b432cc2db5758e2ace5440c787afe8c7

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

Modifies firewall policy service 3 TTPs 3 IoCs

evasion

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

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 1 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

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

Executes dropped EXE 5 IoCs

pid	Process
332	Win.exe
2332	Patch.exe
2448	Win.exe
2616	winupdate.exe
1844	winupdate.exe

Loads dropped DLL 21 IoCs

pid	Process
2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe
2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe
332	Win.exe
332	Win.exe
332	Win.exe
2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe
2332	Patch.exe
2332	Patch.exe
2332	Patch.exe
332	Win.exe
2448	Win.exe
2448	Win.exe
2448	Win.exe
2448	Win.exe
2616	winupdate.exe
2616	winupdate.exe
2616	winupdate.exe
2616	winupdate.exe
1844	winupdate.exe
1844	winupdate.exe
1844	winupdate.exe

Windows security modification 2 TTPs 1 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

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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	Win.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 332 set thread context of 2448	332	Win.exe	33
PID 2616 set thread context of 1844	2616	winupdate.exe	35

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 6 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	Win.exe
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	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Win.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Patch.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\VendorIdentifier	winupdate.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Win.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Win.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Win.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	Win.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

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	Win.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupdate.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2448	Win.exe
Token: SeSecurityPrivilege	2448	Win.exe
Token: SeTakeOwnershipPrivilege	2448	Win.exe
Token: SeLoadDriverPrivilege	2448	Win.exe
Token: SeSystemProfilePrivilege	2448	Win.exe
Token: SeSystemtimePrivilege	2448	Win.exe
Token: SeProfSingleProcessPrivilege	2448	Win.exe
Token: SeIncBasePriorityPrivilege	2448	Win.exe
Token: SeCreatePagefilePrivilege	2448	Win.exe
Token: SeBackupPrivilege	2448	Win.exe
Token: SeRestorePrivilege	2448	Win.exe
Token: SeShutdownPrivilege	2448	Win.exe
Token: SeDebugPrivilege	2448	Win.exe
Token: SeSystemEnvironmentPrivilege	2448	Win.exe
Token: SeChangeNotifyPrivilege	2448	Win.exe
Token: SeRemoteShutdownPrivilege	2448	Win.exe
Token: SeUndockPrivilege	2448	Win.exe
Token: SeManageVolumePrivilege	2448	Win.exe
Token: SeImpersonatePrivilege	2448	Win.exe
Token: SeCreateGlobalPrivilege	2448	Win.exe
Token: 33	2448	Win.exe
Token: 34	2448	Win.exe
Token: 35	2448	Win.exe
Token: SeRestorePrivilege	2448	Win.exe
Token: SeBackupPrivilege	2448	Win.exe
Token: SeIncreaseQuotaPrivilege	1844	winupdate.exe
Token: SeSecurityPrivilege	1844	winupdate.exe
Token: SeTakeOwnershipPrivilege	1844	winupdate.exe
Token: SeLoadDriverPrivilege	1844	winupdate.exe
Token: SeSystemProfilePrivilege	1844	winupdate.exe
Token: SeSystemtimePrivilege	1844	winupdate.exe
Token: SeProfSingleProcessPrivilege	1844	winupdate.exe
Token: SeIncBasePriorityPrivilege	1844	winupdate.exe
Token: SeCreatePagefilePrivilege	1844	winupdate.exe
Token: SeBackupPrivilege	1844	winupdate.exe
Token: SeRestorePrivilege	1844	winupdate.exe
Token: SeShutdownPrivilege	1844	winupdate.exe
Token: SeDebugPrivilege	1844	winupdate.exe
Token: SeSystemEnvironmentPrivilege	1844	winupdate.exe
Token: SeChangeNotifyPrivilege	1844	winupdate.exe
Token: SeRemoteShutdownPrivilege	1844	winupdate.exe
Token: SeUndockPrivilege	1844	winupdate.exe
Token: SeManageVolumePrivilege	1844	winupdate.exe
Token: SeImpersonatePrivilege	1844	winupdate.exe
Token: SeCreateGlobalPrivilege	1844	winupdate.exe
Token: 33	1844	winupdate.exe
Token: 34	1844	winupdate.exe
Token: 35	1844	winupdate.exe

Suspicious use of WriteProcessMemory 53 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 332	2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe	31
PID 2492 wrote to memory of 332	2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe	31
PID 2492 wrote to memory of 332	2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe	31
PID 2492 wrote to memory of 332	2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe	31
PID 2492 wrote to memory of 332	2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe	31
PID 2492 wrote to memory of 332	2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe	31
PID 2492 wrote to memory of 332	2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe	31
PID 2492 wrote to memory of 2332	2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe	32
PID 2492 wrote to memory of 2332	2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe	32
PID 2492 wrote to memory of 2332	2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe	32
PID 2492 wrote to memory of 2332	2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe	32
PID 2492 wrote to memory of 2332	2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe	32
PID 2492 wrote to memory of 2332	2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe	32
PID 2492 wrote to memory of 2332	2492	JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe	32
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 332 wrote to memory of 2448	332	Win.exe	33
PID 2448 wrote to memory of 2616	2448	Win.exe	34
PID 2448 wrote to memory of 2616	2448	Win.exe	34
PID 2448 wrote to memory of 2616	2448	Win.exe	34
PID 2448 wrote to memory of 2616	2448	Win.exe	34
PID 2448 wrote to memory of 2616	2448	Win.exe	34
PID 2448 wrote to memory of 2616	2448	Win.exe	34
PID 2448 wrote to memory of 2616	2448	Win.exe	34
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35
PID 2616 wrote to memory of 1844	2616	winupdate.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Users\Admin\AppData\Roaming\Win.exe
  C:\Users\Admin\AppData\Roaming\Win.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:332
- - C:\Users\Admin\AppData\Roaming\Win.exe
    "C:\Users\Admin\AppData\Roaming\Win.exe"
    3⤵
    - Modifies WinLogon for persistence
    - Checks BIOS information in registry
    - Executes dropped EXE
    - 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:2448
  - - C:\Windupdt\winupdate.exe
      "C:\Windupdt\winupdate.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2616
    - - C:\Windupdt\winupdate.exe
        
        "C:\Windupdt\winupdate.exe"
        5⤵
        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 use of AdjustPrivilegeToken
        
        PID:1844
- C:\Users\Admin\AppData\Roaming\Patch.exe
  C:\Users\Admin\AppData\Roaming\Patch.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2332

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