darkcomet | b5f245d1a37e528c3d9f8367c7d6f6bce90edd6cd4a75f20aa85b723462f3949

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	explorer.exe

Windows security bypass 2 TTPs 4 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"	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.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	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	explorer.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"	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe

Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
File opened for modification	\??\PhysicalDrive0	explorer.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
2900	explorer.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1152 set thread context of 2900	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe	31

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	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.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	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	explorer.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	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
2900	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2900	explorer.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeSecurityPrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeBackupPrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeRestorePrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeShutdownPrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeDebugPrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeUndockPrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: 33	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: 34	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: 35	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2900	explorer.exe
Token: SeSecurityPrivilege	2900	explorer.exe
Token: SeTakeOwnershipPrivilege	2900	explorer.exe
Token: SeLoadDriverPrivilege	2900	explorer.exe
Token: SeSystemProfilePrivilege	2900	explorer.exe
Token: SeSystemtimePrivilege	2900	explorer.exe
Token: SeProfSingleProcessPrivilege	2900	explorer.exe
Token: SeIncBasePriorityPrivilege	2900	explorer.exe
Token: SeCreatePagefilePrivilege	2900	explorer.exe
Token: SeBackupPrivilege	2900	explorer.exe
Token: SeRestorePrivilege	2900	explorer.exe
Token: SeShutdownPrivilege	2900	explorer.exe
Token: SeDebugPrivilege	2900	explorer.exe
Token: SeSystemEnvironmentPrivilege	2900	explorer.exe
Token: SeChangeNotifyPrivilege	2900	explorer.exe
Token: SeRemoteShutdownPrivilege	2900	explorer.exe
Token: SeUndockPrivilege	2900	explorer.exe
Token: SeManageVolumePrivilege	2900	explorer.exe
Token: SeImpersonatePrivilege	2900	explorer.exe
Token: SeCreateGlobalPrivilege	2900	explorer.exe
Token: 33	2900	explorer.exe
Token: 34	2900	explorer.exe
Token: 35	2900	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2900	explorer.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 2900	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe	31
PID 1152 wrote to memory of 2900	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe	31
PID 1152 wrote to memory of 2900	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe	31
PID 1152 wrote to memory of 2900	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe	31
PID 1152 wrote to memory of 2900	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe	31
PID 1152 wrote to memory of 2900	1152	4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4d147b7a06d119a79cedb2aedfe252f9_JaffaCakes118.exe"
1⤵
- Modifies security service
- Windows security bypass
- Drops file in Drivers directory
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Windows security modification
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Modifies security service
  - Windows security bypass
  - Checks BIOS information in registry
  - Identifies Wine through registry keys
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

Pre-OS Boot

T1542

Bootkit

T1542.003

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

System Information Discovery