darkcomet | 20c15d51ea9d78617850d3f1485959154f3c1ac1210d0b9636ba316161454dfe

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe

Loads dropped DLL 4 IoCs

pid	Process
1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe
1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe
1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe
1244	b97d78a479702b6b58844faa8d28295f_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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dezBKiPsIouOWMrmnlqbUcGhSimogGiNxthDsjxIqqdQqNaoVm = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe"	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1244 set thread context of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88

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 3 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	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b97d78a479702b6b58844faa8d28295f_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 use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1700	vbc.exe
Token: SeSecurityPrivilege	1700	vbc.exe
Token: SeTakeOwnershipPrivilege	1700	vbc.exe
Token: SeLoadDriverPrivilege	1700	vbc.exe
Token: SeSystemProfilePrivilege	1700	vbc.exe
Token: SeSystemtimePrivilege	1700	vbc.exe
Token: SeProfSingleProcessPrivilege	1700	vbc.exe
Token: SeIncBasePriorityPrivilege	1700	vbc.exe
Token: SeCreatePagefilePrivilege	1700	vbc.exe
Token: SeBackupPrivilege	1700	vbc.exe
Token: SeRestorePrivilege	1700	vbc.exe
Token: SeShutdownPrivilege	1700	vbc.exe
Token: SeDebugPrivilege	1700	vbc.exe
Token: SeSystemEnvironmentPrivilege	1700	vbc.exe
Token: SeChangeNotifyPrivilege	1700	vbc.exe
Token: SeRemoteShutdownPrivilege	1700	vbc.exe
Token: SeUndockPrivilege	1700	vbc.exe
Token: SeManageVolumePrivilege	1700	vbc.exe
Token: SeImpersonatePrivilege	1700	vbc.exe
Token: SeCreateGlobalPrivilege	1700	vbc.exe
Token: 33	1700	vbc.exe
Token: 34	1700	vbc.exe
Token: 35	1700	vbc.exe
Token: 36	1700	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3224 wrote to memory of 1244	3224	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	87
PID 3224 wrote to memory of 1244	3224	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	87
PID 3224 wrote to memory of 1244	3224	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	87
PID 1244 wrote to memory of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88
PID 1244 wrote to memory of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88
PID 1244 wrote to memory of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88
PID 1244 wrote to memory of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88
PID 1244 wrote to memory of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88
PID 1244 wrote to memory of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88
PID 1244 wrote to memory of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88
PID 1244 wrote to memory of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88
PID 1244 wrote to memory of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88
PID 1244 wrote to memory of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88
PID 1244 wrote to memory of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88
PID 1244 wrote to memory of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88
PID 1244 wrote to memory of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88
PID 1244 wrote to memory of 1700	1244	b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe	88

C:\Users\Admin\AppData\Local\Temp\b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3224
- C:\Users\Admin\Documents\b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe
  "C:\Users\Admin\Documents\b97d78a479702b6b58844faa8d28295f_JaffaCakes118.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1244
- - 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
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:1700

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

System Location Discovery

T1614

System Language Discovery