darkcomet | 61b744a790e13ab0a8c981e303afb66c371af8f3605139a2010f1fbc1e943891

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe"	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe

Modifies firewall policy service 3 TTPs 3 IoCs

Modify Registry

Windows Service

Disable or Modify System Firewall

T1562.004

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

Windows security bypass 2 TTPs 2 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"	winupdate.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	winupdate.exe

Disables RegEdit via registry modification 1 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	winupdate.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
912	attrib.exe
5096	attrib.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe

Executes dropped EXE 1 IoCs

pid	Process
1568	winupdate.exe

Windows security modification 2 TTPs 2 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"	winupdate.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	winupdate.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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	winupdate.exe

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 8 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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2004	cmd.exe
2696	PING.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2696	PING.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1568	winupdate.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeSecurityPrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeTakeOwnershipPrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeLoadDriverPrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeSystemProfilePrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeSystemtimePrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeProfSingleProcessPrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeIncBasePriorityPrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeCreatePagefilePrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeBackupPrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeRestorePrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeShutdownPrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeDebugPrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeSystemEnvironmentPrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeChangeNotifyPrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeRemoteShutdownPrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeUndockPrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeManageVolumePrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeImpersonatePrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeCreateGlobalPrivilege	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: 33	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: 34	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: 35	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: 36	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
Token: SeIncreaseQuotaPrivilege	1568	winupdate.exe
Token: SeSecurityPrivilege	1568	winupdate.exe
Token: SeTakeOwnershipPrivilege	1568	winupdate.exe
Token: SeLoadDriverPrivilege	1568	winupdate.exe
Token: SeSystemProfilePrivilege	1568	winupdate.exe
Token: SeSystemtimePrivilege	1568	winupdate.exe
Token: SeProfSingleProcessPrivilege	1568	winupdate.exe
Token: SeIncBasePriorityPrivilege	1568	winupdate.exe
Token: SeCreatePagefilePrivilege	1568	winupdate.exe
Token: SeBackupPrivilege	1568	winupdate.exe
Token: SeRestorePrivilege	1568	winupdate.exe
Token: SeShutdownPrivilege	1568	winupdate.exe
Token: SeDebugPrivilege	1568	winupdate.exe
Token: SeSystemEnvironmentPrivilege	1568	winupdate.exe
Token: SeChangeNotifyPrivilege	1568	winupdate.exe
Token: SeRemoteShutdownPrivilege	1568	winupdate.exe
Token: SeUndockPrivilege	1568	winupdate.exe
Token: SeManageVolumePrivilege	1568	winupdate.exe
Token: SeImpersonatePrivilege	1568	winupdate.exe
Token: SeCreateGlobalPrivilege	1568	winupdate.exe
Token: 33	1568	winupdate.exe
Token: 34	1568	winupdate.exe
Token: 35	1568	winupdate.exe
Token: 36	1568	winupdate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1568	winupdate.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4944 wrote to memory of 2896	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe	84
PID 4944 wrote to memory of 2896	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe	84
PID 4944 wrote to memory of 2896	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe	84
PID 4944 wrote to memory of 4464	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe	86
PID 4944 wrote to memory of 4464	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe	86
PID 4944 wrote to memory of 4464	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe	86
PID 2896 wrote to memory of 912	2896	cmd.exe	88
PID 2896 wrote to memory of 912	2896	cmd.exe	88
PID 2896 wrote to memory of 912	2896	cmd.exe	88
PID 4464 wrote to memory of 5096	4464	cmd.exe	89
PID 4464 wrote to memory of 5096	4464	cmd.exe	89
PID 4464 wrote to memory of 5096	4464	cmd.exe	89
PID 4944 wrote to memory of 1568	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe	90
PID 4944 wrote to memory of 1568	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe	90
PID 4944 wrote to memory of 1568	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe	90
PID 4944 wrote to memory of 2004	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe	91
PID 4944 wrote to memory of 2004	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe	91
PID 4944 wrote to memory of 2004	4944	JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe	91
PID 2004 wrote to memory of 2696	2004	cmd.exe	93
PID 2004 wrote to memory of 2696	2004	cmd.exe	93
PID 2004 wrote to memory of 2696	2004	cmd.exe	93

Views/modifies file attributes 1 TTPs 2 IoCs

Hidden Files and Directories

T1564.001

pid	Process
912	attrib.exe
5096	attrib.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4944
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2896
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:912
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4464
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:5096
- C:\Windupdt\winupdate.exe
  "C:\Windupdt\winupdate.exe"
  2⤵
  - Modifies firewall policy service
  - Modifies security service
  - Windows security bypass
  - Disables RegEdit via registry modification
  - Executes dropped EXE
  - Windows security modification
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1568
- 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\JaffaCakes118_01839f4c376f4e92d5245d461caad628.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2004
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 5
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2696

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 System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry