darkcomet | d981ce836347ca5953d69430af81002c1909764c860621b514b5a8bed77937b6

System Information Discovery

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

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe

Loads dropped DLL 4 IoCs

pid	Process
4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe
4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe
4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe
4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MZMyawuXFWIMlMXRjgEZxpmxPdymvUPrtauzIxdmmlqNUbGTSi = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe"	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4316 set thread context of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

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

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

System Information Discovery

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

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2172	vbc.exe
Token: SeSecurityPrivilege	2172	vbc.exe
Token: SeTakeOwnershipPrivilege	2172	vbc.exe
Token: SeLoadDriverPrivilege	2172	vbc.exe
Token: SeSystemProfilePrivilege	2172	vbc.exe
Token: SeSystemtimePrivilege	2172	vbc.exe
Token: SeProfSingleProcessPrivilege	2172	vbc.exe
Token: SeIncBasePriorityPrivilege	2172	vbc.exe
Token: SeCreatePagefilePrivilege	2172	vbc.exe
Token: SeBackupPrivilege	2172	vbc.exe
Token: SeRestorePrivilege	2172	vbc.exe
Token: SeShutdownPrivilege	2172	vbc.exe
Token: SeDebugPrivilege	2172	vbc.exe
Token: SeSystemEnvironmentPrivilege	2172	vbc.exe
Token: SeChangeNotifyPrivilege	2172	vbc.exe
Token: SeRemoteShutdownPrivilege	2172	vbc.exe
Token: SeUndockPrivilege	2172	vbc.exe
Token: SeManageVolumePrivilege	2172	vbc.exe
Token: SeImpersonatePrivilege	2172	vbc.exe
Token: SeCreateGlobalPrivilege	2172	vbc.exe
Token: 33	2172	vbc.exe
Token: 34	2172	vbc.exe
Token: 35	2172	vbc.exe
Token: 36	2172	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1216 wrote to memory of 4316	1216	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	86
PID 1216 wrote to memory of 4316	1216	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	86
PID 1216 wrote to memory of 4316	1216	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	86
PID 4316 wrote to memory of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87
PID 4316 wrote to memory of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87
PID 4316 wrote to memory of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87
PID 4316 wrote to memory of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87
PID 4316 wrote to memory of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87
PID 4316 wrote to memory of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87
PID 4316 wrote to memory of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87
PID 4316 wrote to memory of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87
PID 4316 wrote to memory of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87
PID 4316 wrote to memory of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87
PID 4316 wrote to memory of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87
PID 4316 wrote to memory of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87
PID 4316 wrote to memory of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87
PID 4316 wrote to memory of 2172	4316	41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe	87

C:\Users\Admin\AppData\Local\Temp\41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Users\Admin\Documents\41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe
  "C:\Users\Admin\Documents\41e55cbc35c3e957ad771fd307d27442_JaffaCakes118.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4316
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    3⤵
    - Checks BIOS information in registry
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:2172

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

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

Scripting

Credential Access

Discovery

Query Registry

4

System Information Discovery

5