darkcomet | 8d70b8dae18b40edcc399a6d12a60b8287983fa236640d5f87063555b204ae2e

Windows Service

T1543.003

Processes:

Service.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	Service.exe

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

Service.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	Service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	Service.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

Processes:

462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

Processes:

LaunchIW5M.exeService.exe

pid	Process
3092	LaunchIW5M.exe
2036	Service.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

Service.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	Service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	Service.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

Processes:

462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FacbookUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\FacbookUpdate.exe"	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe

Drops autorun.inf file 1 TTPs 2 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

Processes:

462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe

description	ioc	Process
File created	C:\autorun.inf	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe
File opened for modification	C:\autorun.inf	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe

description	pid	Process	procid_target
PID 3996 set thread context of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94

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 4 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

Processes:

462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exeLaunchIW5M.exedw20.exeService.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LaunchIW5M.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Service.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

Processes:

dw20.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

Processes:

dw20.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe

pid	Process
3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

Processes:

dw20.exe462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exeService.exe

description	pid	Process
Token: SeRestorePrivilege	4744	dw20.exe
Token: SeBackupPrivilege	4744	dw20.exe
Token: SeBackupPrivilege	4744	dw20.exe
Token: SeBackupPrivilege	4744	dw20.exe
Token: SeDebugPrivilege	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2036	Service.exe
Token: SeSecurityPrivilege	2036	Service.exe
Token: SeTakeOwnershipPrivilege	2036	Service.exe
Token: SeLoadDriverPrivilege	2036	Service.exe
Token: SeSystemProfilePrivilege	2036	Service.exe
Token: SeSystemtimePrivilege	2036	Service.exe
Token: SeProfSingleProcessPrivilege	2036	Service.exe
Token: SeIncBasePriorityPrivilege	2036	Service.exe
Token: SeCreatePagefilePrivilege	2036	Service.exe
Token: SeBackupPrivilege	2036	Service.exe
Token: SeRestorePrivilege	2036	Service.exe
Token: SeShutdownPrivilege	2036	Service.exe
Token: SeDebugPrivilege	2036	Service.exe
Token: SeSystemEnvironmentPrivilege	2036	Service.exe
Token: SeChangeNotifyPrivilege	2036	Service.exe
Token: SeRemoteShutdownPrivilege	2036	Service.exe
Token: SeUndockPrivilege	2036	Service.exe
Token: SeManageVolumePrivilege	2036	Service.exe
Token: SeImpersonatePrivilege	2036	Service.exe
Token: SeCreateGlobalPrivilege	2036	Service.exe
Token: 33	2036	Service.exe
Token: 34	2036	Service.exe
Token: 35	2036	Service.exe
Token: 36	2036	Service.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Service.exe

pid	Process
2036	Service.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exeLaunchIW5M.exe

description	pid	Process	procid_target
PID 3996 wrote to memory of 3092	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	89
PID 3996 wrote to memory of 3092	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	89
PID 3996 wrote to memory of 3092	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	89
PID 3092 wrote to memory of 4744	3092	LaunchIW5M.exe	90
PID 3092 wrote to memory of 4744	3092	LaunchIW5M.exe	90
PID 3092 wrote to memory of 4744	3092	LaunchIW5M.exe	90
PID 3996 wrote to memory of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94
PID 3996 wrote to memory of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94
PID 3996 wrote to memory of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94
PID 3996 wrote to memory of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94
PID 3996 wrote to memory of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94
PID 3996 wrote to memory of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94
PID 3996 wrote to memory of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94
PID 3996 wrote to memory of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94
PID 3996 wrote to memory of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94
PID 3996 wrote to memory of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94
PID 3996 wrote to memory of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94
PID 3996 wrote to memory of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94
PID 3996 wrote to memory of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94
PID 3996 wrote to memory of 2036	3996	462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe	94

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

Processes:

Service.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	Service.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	Service.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	Service.exe

C:\Users\Admin\AppData\Local\Temp\462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\462ae7aa137af0f8f9fa6dfd1f501350_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops autorun.inf file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3996
- C:\Users\Admin\AppData\Local\Temp\LaunchIW5M.exe
  "C:\Users\Admin\AppData\Local\Temp\LaunchIW5M.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3092
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 924
    3⤵
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:4744
- C:\Users\Admin\AppData\Local\Temp\AppLaunch\Service.exe
  C:\Users\Admin\AppData\Local\Temp\\AppLaunch\Service.exe
  2⤵
  - Modifies security service
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:2036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

3

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Replication Through Removable Media