darkcomet | 4bdd9384bf7eaa1634b150f749bf926097a5a5e314238b35fc2c3b32b1e830de

System Information Discovery

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

Executes dropped EXE 1 IoCs

pid	Process
2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe

Loads dropped DLL 5 IoCs

pid	Process
2032	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe
2032	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe
2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe
2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe
2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\jHCfhOhnvkQZaYdBHPsGFVZbTsIzkSUoRWkgPcCDdmybuZxQpQ = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe"	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2576 set thread context of 2556	2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	29
PID 2556 set thread context of 2996	2556	vbc.exe	30

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	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.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 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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	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 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2556	vbc.exe
Token: SeSecurityPrivilege	2556	vbc.exe
Token: SeTakeOwnershipPrivilege	2556	vbc.exe
Token: SeLoadDriverPrivilege	2556	vbc.exe
Token: SeSystemProfilePrivilege	2556	vbc.exe
Token: SeSystemtimePrivilege	2556	vbc.exe
Token: SeProfSingleProcessPrivilege	2556	vbc.exe
Token: SeIncBasePriorityPrivilege	2556	vbc.exe
Token: SeCreatePagefilePrivilege	2556	vbc.exe
Token: SeBackupPrivilege	2556	vbc.exe
Token: SeRestorePrivilege	2556	vbc.exe
Token: SeShutdownPrivilege	2556	vbc.exe
Token: SeDebugPrivilege	2556	vbc.exe
Token: SeSystemEnvironmentPrivilege	2556	vbc.exe
Token: SeChangeNotifyPrivilege	2556	vbc.exe
Token: SeRemoteShutdownPrivilege	2556	vbc.exe
Token: SeUndockPrivilege	2556	vbc.exe
Token: SeManageVolumePrivilege	2556	vbc.exe
Token: SeImpersonatePrivilege	2556	vbc.exe
Token: SeCreateGlobalPrivilege	2556	vbc.exe
Token: 33	2556	vbc.exe
Token: 34	2556	vbc.exe
Token: 35	2556	vbc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 2576	2032	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	28
PID 2032 wrote to memory of 2576	2032	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	28
PID 2032 wrote to memory of 2576	2032	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	28
PID 2032 wrote to memory of 2576	2032	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	28
PID 2576 wrote to memory of 2556	2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	29
PID 2576 wrote to memory of 2556	2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	29
PID 2576 wrote to memory of 2556	2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	29
PID 2576 wrote to memory of 2556	2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	29
PID 2576 wrote to memory of 2556	2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	29
PID 2576 wrote to memory of 2556	2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	29
PID 2576 wrote to memory of 2556	2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	29
PID 2576 wrote to memory of 2556	2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	29
PID 2576 wrote to memory of 2556	2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	29
PID 2576 wrote to memory of 2556	2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	29
PID 2576 wrote to memory of 2556	2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	29
PID 2576 wrote to memory of 2556	2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	29
PID 2576 wrote to memory of 2556	2576	JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe	29
PID 2556 wrote to memory of 2996	2556	vbc.exe	30
PID 2556 wrote to memory of 2996	2556	vbc.exe	30
PID 2556 wrote to memory of 2996	2556	vbc.exe	30
PID 2556 wrote to memory of 2996	2556	vbc.exe	30
PID 2556 wrote to memory of 2996	2556	vbc.exe	30
PID 2556 wrote to memory of 2996	2556	vbc.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\Documents\JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.exe
  "C:\Users\Admin\Documents\JaffaCakes118_c1cab2d45f394c1fb0ac454b67f964c6.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:2576
- - 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
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2556
  - - C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      4⤵
      PID:2996

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

3

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery