darkcomet | 968e227aaa6b1ecdfdfc22890d8e5ae61ab9ff24913bcbf54638e5c2218bf299

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\SystemDrivers\\jdriver.exe"	b816b944ff6ac1be2f6054936e785b33.exe

Modifies firewall policy service 2 TTPs 3 IoCs

Modify Registry

Windows Service

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	jdriver.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	jdriver.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	jdriver.exe

Modifies security service 2 TTPs 1 IoCs

Modify Registry

Windows Service

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	jdriver.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

Hidden Files and Directories

T1564.001

pid	Process
2564	attrib.exe
2884	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
2652	jdriver.exe

Loads dropped DLL 2 IoCs

pid	Process
2696	b816b944ff6ac1be2f6054936e785b33.exe
2696	b816b944ff6ac1be2f6054936e785b33.exe

UPX packed file 20 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2696-0-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/files/0x000d000000015c73-5.dat	upx
behavioral1/memory/2696-13-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-14-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2696-12-0x0000000003B90000-0x0000000003C49000-memory.dmp	upx
behavioral1/memory/2652-16-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-17-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-18-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-19-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-20-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-21-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-22-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-23-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-24-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-25-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-26-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-27-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-28-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-29-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral1/memory/2652-30-0x0000000000400000-0x00000000004B9000-memory.dmp	upx

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	jdriver.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000\Software\Microsoft\Windows\CurrentVersion\Run\System Drivers = "C:\\SystemDrivers\\jdriver.exe"	jdriver.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000\Software\Microsoft\Windows\CurrentVersion\Run\System Drivers = "C:\\SystemDrivers\\jdriver.exe"	b816b944ff6ac1be2f6054936e785b33.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2576	PING.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2652	jdriver.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeSecurityPrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeTakeOwnershipPrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeLoadDriverPrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeSystemProfilePrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeSystemtimePrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeProfSingleProcessPrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeIncBasePriorityPrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeCreatePagefilePrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeBackupPrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeRestorePrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeShutdownPrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeDebugPrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeSystemEnvironmentPrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeChangeNotifyPrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeRemoteShutdownPrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeUndockPrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeManageVolumePrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeImpersonatePrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeCreateGlobalPrivilege	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: 33	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: 34	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: 35	2696	b816b944ff6ac1be2f6054936e785b33.exe
Token: SeIncreaseQuotaPrivilege	2652	jdriver.exe
Token: SeSecurityPrivilege	2652	jdriver.exe
Token: SeTakeOwnershipPrivilege	2652	jdriver.exe
Token: SeLoadDriverPrivilege	2652	jdriver.exe
Token: SeSystemProfilePrivilege	2652	jdriver.exe
Token: SeSystemtimePrivilege	2652	jdriver.exe
Token: SeProfSingleProcessPrivilege	2652	jdriver.exe
Token: SeIncBasePriorityPrivilege	2652	jdriver.exe
Token: SeCreatePagefilePrivilege	2652	jdriver.exe
Token: SeBackupPrivilege	2652	jdriver.exe
Token: SeRestorePrivilege	2652	jdriver.exe
Token: SeShutdownPrivilege	2652	jdriver.exe
Token: SeDebugPrivilege	2652	jdriver.exe
Token: SeSystemEnvironmentPrivilege	2652	jdriver.exe
Token: SeChangeNotifyPrivilege	2652	jdriver.exe
Token: SeRemoteShutdownPrivilege	2652	jdriver.exe
Token: SeUndockPrivilege	2652	jdriver.exe
Token: SeManageVolumePrivilege	2652	jdriver.exe
Token: SeImpersonatePrivilege	2652	jdriver.exe
Token: SeCreateGlobalPrivilege	2652	jdriver.exe
Token: 33	2652	jdriver.exe
Token: 34	2652	jdriver.exe
Token: 35	2652	jdriver.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2652	jdriver.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 2556	2696	b816b944ff6ac1be2f6054936e785b33.exe	28
PID 2696 wrote to memory of 2556	2696	b816b944ff6ac1be2f6054936e785b33.exe	28
PID 2696 wrote to memory of 2556	2696	b816b944ff6ac1be2f6054936e785b33.exe	28
PID 2696 wrote to memory of 2556	2696	b816b944ff6ac1be2f6054936e785b33.exe	28
PID 2696 wrote to memory of 2516	2696	b816b944ff6ac1be2f6054936e785b33.exe	29
PID 2696 wrote to memory of 2516	2696	b816b944ff6ac1be2f6054936e785b33.exe	29
PID 2696 wrote to memory of 2516	2696	b816b944ff6ac1be2f6054936e785b33.exe	29
PID 2696 wrote to memory of 2516	2696	b816b944ff6ac1be2f6054936e785b33.exe	29
PID 2556 wrote to memory of 2564	2556	cmd.exe	32
PID 2556 wrote to memory of 2564	2556	cmd.exe	32
PID 2556 wrote to memory of 2564	2556	cmd.exe	32
PID 2556 wrote to memory of 2564	2556	cmd.exe	32
PID 2516 wrote to memory of 2884	2516	cmd.exe	33
PID 2516 wrote to memory of 2884	2516	cmd.exe	33
PID 2516 wrote to memory of 2884	2516	cmd.exe	33
PID 2516 wrote to memory of 2884	2516	cmd.exe	33
PID 2696 wrote to memory of 2652	2696	b816b944ff6ac1be2f6054936e785b33.exe	34
PID 2696 wrote to memory of 2652	2696	b816b944ff6ac1be2f6054936e785b33.exe	34
PID 2696 wrote to memory of 2652	2696	b816b944ff6ac1be2f6054936e785b33.exe	34
PID 2696 wrote to memory of 2652	2696	b816b944ff6ac1be2f6054936e785b33.exe	34
PID 2696 wrote to memory of 1604	2696	b816b944ff6ac1be2f6054936e785b33.exe	35
PID 2696 wrote to memory of 1604	2696	b816b944ff6ac1be2f6054936e785b33.exe	35
PID 2696 wrote to memory of 1604	2696	b816b944ff6ac1be2f6054936e785b33.exe	35
PID 2696 wrote to memory of 1604	2696	b816b944ff6ac1be2f6054936e785b33.exe	35
PID 1604 wrote to memory of 2576	1604	cmd.exe	37
PID 1604 wrote to memory of 2576	1604	cmd.exe	37
PID 1604 wrote to memory of 2576	1604	cmd.exe	37
PID 1604 wrote to memory of 2576	1604	cmd.exe	37

Views/modifies file attributes 1 TTPs 2 IoCs

Hidden Files and Directories

T1564.001

pid	Process
2564	attrib.exe
2884	attrib.exe

C:\Users\Admin\AppData\Local\Temp\b816b944ff6ac1be2f6054936e785b33.exe
"C:\Users\Admin\AppData\Local\Temp\b816b944ff6ac1be2f6054936e785b33.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\b816b944ff6ac1be2f6054936e785b33.exe" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2556
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\b816b944ff6ac1be2f6054936e785b33.exe" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:2564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2516
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:2884
- C:\SystemDrivers\jdriver.exe
  "C:\SystemDrivers\jdriver.exe"
  2⤵
  - Modifies firewall policy service
  - Modifies security service
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - Adds Run key to start application
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\b816b944ff6ac1be2f6054936e785b33.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1604
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 5
    3⤵
    - Runs ping.exe
    PID:2576

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

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry