darkcomet | abb98e50ee3ea6fa853b4ce61adec75a059b459e9f2abbed9e5ce9569eddd918

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	win95.exe

Executes dropped EXE 1 IoCs

pid	Process
4324	win95.exe

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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\runAPI59 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\runAPI92.exe\""	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1476 set thread context of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85

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	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	win95.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\VendorIdentifier	win95.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	win95.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	win95.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	win95.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	win95.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4324	win95.exe
Token: SeSecurityPrivilege	4324	win95.exe
Token: SeTakeOwnershipPrivilege	4324	win95.exe
Token: SeLoadDriverPrivilege	4324	win95.exe
Token: SeSystemProfilePrivilege	4324	win95.exe
Token: SeSystemtimePrivilege	4324	win95.exe
Token: SeProfSingleProcessPrivilege	4324	win95.exe
Token: SeIncBasePriorityPrivilege	4324	win95.exe
Token: SeCreatePagefilePrivilege	4324	win95.exe
Token: SeBackupPrivilege	4324	win95.exe
Token: SeRestorePrivilege	4324	win95.exe
Token: SeShutdownPrivilege	4324	win95.exe
Token: SeDebugPrivilege	4324	win95.exe
Token: SeSystemEnvironmentPrivilege	4324	win95.exe
Token: SeChangeNotifyPrivilege	4324	win95.exe
Token: SeRemoteShutdownPrivilege	4324	win95.exe
Token: SeUndockPrivilege	4324	win95.exe
Token: SeManageVolumePrivilege	4324	win95.exe
Token: SeImpersonatePrivilege	4324	win95.exe
Token: SeCreateGlobalPrivilege	4324	win95.exe
Token: 33	4324	win95.exe
Token: 34	4324	win95.exe
Token: 35	4324	win95.exe
Token: 36	4324	win95.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4324	win95.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1476 wrote to memory of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85
PID 1476 wrote to memory of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85
PID 1476 wrote to memory of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85
PID 1476 wrote to memory of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85
PID 1476 wrote to memory of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85
PID 1476 wrote to memory of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85
PID 1476 wrote to memory of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85
PID 1476 wrote to memory of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85
PID 1476 wrote to memory of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85
PID 1476 wrote to memory of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85
PID 1476 wrote to memory of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85
PID 1476 wrote to memory of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85
PID 1476 wrote to memory of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85
PID 1476 wrote to memory of 4324	1476	2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2240015dde576cf8210ad19f14375b0a_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1476
- C:\Users\Admin\AppData\Local\Temp\win95.exe
  C:\Users\Admin\AppData\Local\Temp\win95.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:4324

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

3

System Information Discovery

3

System Location Discovery

T1614

System Language Discovery