darkcomet | b16cecf93f1740fe9bb268d4ae730f55243479993efe7b5f9add81026ac04c11

System Information Discovery

Processes:

svhost.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	svhost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

Processes:

wscript.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

Processes:

cmd.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundll32 .exe	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundll32 .exe	cmd.exe

Executes dropped EXE 1 IoCs

Processes:

svhost.exe

pid	Process
3356	svhost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Roaming\\rundll32 .exe"	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1068 set thread context of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89

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 5 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

Processes:

cmd.exe79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.execmd.exewscript.exesvhost.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe

Checks processor information in registry 2 TTPs 4 IoCs

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

Query Registry

System Information Discovery

Processes:

svhost.exe

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

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

System Information Discovery

Processes:

svhost.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	svhost.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe

pid	Process
1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

Processes:

79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exesvhost.exe

description	pid	Process
Token: SeDebugPrivilege	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3356	svhost.exe
Token: SeSecurityPrivilege	3356	svhost.exe
Token: SeTakeOwnershipPrivilege	3356	svhost.exe
Token: SeLoadDriverPrivilege	3356	svhost.exe
Token: SeSystemProfilePrivilege	3356	svhost.exe
Token: SeSystemtimePrivilege	3356	svhost.exe
Token: SeProfSingleProcessPrivilege	3356	svhost.exe
Token: SeIncBasePriorityPrivilege	3356	svhost.exe
Token: SeCreatePagefilePrivilege	3356	svhost.exe
Token: SeBackupPrivilege	3356	svhost.exe
Token: SeRestorePrivilege	3356	svhost.exe
Token: SeShutdownPrivilege	3356	svhost.exe
Token: SeDebugPrivilege	3356	svhost.exe
Token: SeSystemEnvironmentPrivilege	3356	svhost.exe
Token: SeChangeNotifyPrivilege	3356	svhost.exe
Token: SeRemoteShutdownPrivilege	3356	svhost.exe
Token: SeUndockPrivilege	3356	svhost.exe
Token: SeManageVolumePrivilege	3356	svhost.exe
Token: SeImpersonatePrivilege	3356	svhost.exe
Token: SeCreateGlobalPrivilege	3356	svhost.exe
Token: 33	3356	svhost.exe
Token: 34	3356	svhost.exe
Token: 35	3356	svhost.exe
Token: 36	3356	svhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

svhost.exe

pid	Process
3356	svhost.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.execmd.exewscript.exe

description	pid	Process	procid_target
PID 1068 wrote to memory of 1844	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	84
PID 1068 wrote to memory of 1844	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	84
PID 1068 wrote to memory of 1844	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	84
PID 1844 wrote to memory of 3904	1844	cmd.exe	86
PID 1844 wrote to memory of 3904	1844	cmd.exe	86
PID 1844 wrote to memory of 3904	1844	cmd.exe	86
PID 1068 wrote to memory of 2184	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	88
PID 1068 wrote to memory of 2184	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	88
PID 1068 wrote to memory of 2184	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	88
PID 1068 wrote to memory of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89
PID 1068 wrote to memory of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89
PID 1068 wrote to memory of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89
PID 1068 wrote to memory of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89
PID 1068 wrote to memory of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89
PID 1068 wrote to memory of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89
PID 1068 wrote to memory of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89
PID 1068 wrote to memory of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89
PID 1068 wrote to memory of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89
PID 1068 wrote to memory of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89
PID 1068 wrote to memory of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89
PID 1068 wrote to memory of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89
PID 1068 wrote to memory of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89
PID 1068 wrote to memory of 3356	1068	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	89
PID 3904 wrote to memory of 4928	3904	wscript.exe	90
PID 3904 wrote to memory of 4928	3904	wscript.exe	90
PID 3904 wrote to memory of 4928	3904	wscript.exe	90

C:\Users\Admin\AppData\Local\Temp\79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1068
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\\java.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1844
- - C:\Windows\SysWOW64\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Roaming\invs.vbs" "C:\Users\Admin\AppData\Roaming\java2.bat
    3⤵
    - Checks computer location settings
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3904
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\java2.bat" "
      4⤵
      Drops startup file
      System Location Discovery: System Language Discovery
      PID:4928
- \??\c:\svhost.exe
  c:\svhost.exe
  2⤵
  PID:2184
- \??\c:\svhost.exe
  c:\svhost.exe
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3356

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

4

System Information Discovery

5

System Location Discovery

T1614

System Language Discovery