darkcomet | 56f3d0151d769256a91ee85e19a36f0fb040adfd527323f8ce30ed571880bd82

System Information Discovery

Processes:

Svchost.exe

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

Executes dropped EXE 1 IoCs

Processes:

Svchost.exe

pid	Process
2836	Svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WinZip = "C:\\Users\\Admin\\AppData\\Roaming\\left0v3rdark.exe"	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe

description	pid	Process	procid_target
PID 4436 set thread context of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91

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

Processes:

Svchost.exe

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

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

System Information Discovery

Processes:

Svchost.exe

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

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe

pid	Process
4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe
4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe
4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe
4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe
4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe
4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe
4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe
4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe
4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

Processes:

f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exeSvchost.exe

description	pid	Process
Token: SeDebugPrivilege	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2836	Svchost.exe
Token: SeSecurityPrivilege	2836	Svchost.exe
Token: SeTakeOwnershipPrivilege	2836	Svchost.exe
Token: SeLoadDriverPrivilege	2836	Svchost.exe
Token: SeSystemProfilePrivilege	2836	Svchost.exe
Token: SeSystemtimePrivilege	2836	Svchost.exe
Token: SeProfSingleProcessPrivilege	2836	Svchost.exe
Token: SeIncBasePriorityPrivilege	2836	Svchost.exe
Token: SeCreatePagefilePrivilege	2836	Svchost.exe
Token: SeBackupPrivilege	2836	Svchost.exe
Token: SeRestorePrivilege	2836	Svchost.exe
Token: SeShutdownPrivilege	2836	Svchost.exe
Token: SeDebugPrivilege	2836	Svchost.exe
Token: SeSystemEnvironmentPrivilege	2836	Svchost.exe
Token: SeChangeNotifyPrivilege	2836	Svchost.exe
Token: SeRemoteShutdownPrivilege	2836	Svchost.exe
Token: SeUndockPrivilege	2836	Svchost.exe
Token: SeManageVolumePrivilege	2836	Svchost.exe
Token: SeImpersonatePrivilege	2836	Svchost.exe
Token: SeCreateGlobalPrivilege	2836	Svchost.exe
Token: 33	2836	Svchost.exe
Token: 34	2836	Svchost.exe
Token: 35	2836	Svchost.exe
Token: 36	2836	Svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Svchost.exe

pid	Process
2836	Svchost.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe

description	pid	Process	procid_target
PID 4436 wrote to memory of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91
PID 4436 wrote to memory of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91
PID 4436 wrote to memory of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91
PID 4436 wrote to memory of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91
PID 4436 wrote to memory of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91
PID 4436 wrote to memory of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91
PID 4436 wrote to memory of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91
PID 4436 wrote to memory of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91
PID 4436 wrote to memory of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91
PID 4436 wrote to memory of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91
PID 4436 wrote to memory of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91
PID 4436 wrote to memory of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91
PID 4436 wrote to memory of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91
PID 4436 wrote to memory of 2836	4436	f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe	91

C:\Users\Admin\AppData\Local\Temp\f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f629ee640abd8be3ede2f57f4fe66057_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4436
- C:\Users\Admin\AppData\Roaming\Svchost.exe
  C:\Users\Admin\AppData\Roaming\Svchost.exe
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2836

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3948 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
1⤵
PID:932

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