darkcomet | b109878180698ad0d281bd9af106291ae13b109433d76c0a01f4b5b7c1cef37e

System Information Discovery

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

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DefaultSystem = "C:\\Users\\Admin\\AppData\\Roaming\\Sys32c.exe"	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3920 set thread context of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82

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	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.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

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 behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4076	vbc.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4076	vbc.exe
Token: SeSecurityPrivilege	4076	vbc.exe
Token: SeTakeOwnershipPrivilege	4076	vbc.exe
Token: SeLoadDriverPrivilege	4076	vbc.exe
Token: SeSystemProfilePrivilege	4076	vbc.exe
Token: SeSystemtimePrivilege	4076	vbc.exe
Token: SeProfSingleProcessPrivilege	4076	vbc.exe
Token: SeIncBasePriorityPrivilege	4076	vbc.exe
Token: SeCreatePagefilePrivilege	4076	vbc.exe
Token: SeBackupPrivilege	4076	vbc.exe
Token: SeRestorePrivilege	4076	vbc.exe
Token: SeShutdownPrivilege	4076	vbc.exe
Token: SeDebugPrivilege	4076	vbc.exe
Token: SeSystemEnvironmentPrivilege	4076	vbc.exe
Token: SeChangeNotifyPrivilege	4076	vbc.exe
Token: SeRemoteShutdownPrivilege	4076	vbc.exe
Token: SeUndockPrivilege	4076	vbc.exe
Token: SeManageVolumePrivilege	4076	vbc.exe
Token: SeImpersonatePrivilege	4076	vbc.exe
Token: SeCreateGlobalPrivilege	4076	vbc.exe
Token: 33	4076	vbc.exe
Token: 34	4076	vbc.exe
Token: 35	4076	vbc.exe
Token: 36	4076	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4076	vbc.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3920 wrote to memory of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82
PID 3920 wrote to memory of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82
PID 3920 wrote to memory of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82
PID 3920 wrote to memory of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82
PID 3920 wrote to memory of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82
PID 3920 wrote to memory of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82
PID 3920 wrote to memory of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82
PID 3920 wrote to memory of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82
PID 3920 wrote to memory of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82
PID 3920 wrote to memory of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82
PID 3920 wrote to memory of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82
PID 3920 wrote to memory of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82
PID 3920 wrote to memory of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82
PID 3920 wrote to memory of 4076	3920	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	82

C:\Users\Admin\AppData\Local\Temp\02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3920
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - Windows security bypass
  - Checks BIOS information in registry
  - 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
  PID:4076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

3

System Information Discovery

3

System Location Discovery

T1614

System Language Discovery