darkcomet | 6db036bca5f6e4bf557f27b9a03d0d884600b740db2fe5c3536428cfed894d98

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\aqW6mlZhwxrl\\winlogon.exe"	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe

Modifies firewall policy service 3 TTPs 3 IoCs

Modify Registry

Windows Service

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.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"	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe

Windows security bypass 2 TTPs 2 IoCs

defense_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"	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.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
2848	attrib.exe
1752	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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe

Windows security modification 2 TTPs 2 IoCs

defense_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"	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\aqW6mlZhwxrl\\winlogon.exe"	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\aqW6mlZhwxrl\winlogon.exe	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
File opened for modification	C:\Windows\SysWOW64\aqW6mlZhwxrl\winlogon.exe	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
File opened for modification	C:\Windows\SysWOW64\aqW6mlZhwxrl\	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
File created	C:\Windows\SysWOW64\winlogon.exe	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
File opened for modification	C:\Windows\SysWOW64\winlogon.exe	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.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 5 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	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	attrib.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeSecurityPrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeTakeOwnershipPrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeLoadDriverPrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeSystemProfilePrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeSystemtimePrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeProfSingleProcessPrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeIncBasePriorityPrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeCreatePagefilePrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeBackupPrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeRestorePrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeShutdownPrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeDebugPrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeSystemEnvironmentPrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeChangeNotifyPrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeRemoteShutdownPrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeUndockPrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeManageVolumePrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeImpersonatePrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: SeCreateGlobalPrivilege	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: 33	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: 34	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: 35	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
Token: 36	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3744 wrote to memory of 3092	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe	82
PID 3744 wrote to memory of 3092	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe	82
PID 3744 wrote to memory of 3092	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe	82
PID 3744 wrote to memory of 4628	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe	84
PID 3744 wrote to memory of 4628	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe	84
PID 3744 wrote to memory of 4628	3744	JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe	84
PID 3092 wrote to memory of 1752	3092	cmd.exe	86
PID 3092 wrote to memory of 1752	3092	cmd.exe	86
PID 3092 wrote to memory of 1752	3092	cmd.exe	86
PID 4628 wrote to memory of 2848	4628	cmd.exe	87
PID 4628 wrote to memory of 2848	4628	cmd.exe	87
PID 4628 wrote to memory of 2848	4628	cmd.exe	87

Views/modifies file attributes 1 TTPs 2 IoCs

Hidden Files and Directories

T1564.001

pid	Process
2848	attrib.exe
1752	attrib.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe"
1⤵
- Modifies WinLogon for persistence
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- Checks computer location settings
- Windows security modification
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3092
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0190f7b16d0ee5d2b081e73203e17ce4.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1752
- 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:4628
- - 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:2848

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

3

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery