darkcomet | f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\System.exe"	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.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\DisableNotifications = "0"	System.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	System.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	System.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"	System.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"	System.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	System.exe

Disables RegEdit via registry modification 1 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	System.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
2412	attrib.exe
1724	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	System.exe

Loads dropped DLL 2 IoCs

pid	Process
1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.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"	System.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	System.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Users\\Admin\\Documents\\MSDCSC\\System.exe"	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.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 7 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	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2856	System.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeSecurityPrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeTakeOwnershipPrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeLoadDriverPrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeSystemProfilePrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeSystemtimePrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeProfSingleProcessPrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeIncBasePriorityPrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeCreatePagefilePrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeBackupPrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeRestorePrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeShutdownPrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeDebugPrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeSystemEnvironmentPrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeChangeNotifyPrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeRemoteShutdownPrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeUndockPrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeManageVolumePrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeImpersonatePrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeCreateGlobalPrivilege	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: 33	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: 34	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: 35	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
Token: SeIncreaseQuotaPrivilege	2856	System.exe
Token: SeSecurityPrivilege	2856	System.exe
Token: SeTakeOwnershipPrivilege	2856	System.exe
Token: SeLoadDriverPrivilege	2856	System.exe
Token: SeSystemProfilePrivilege	2856	System.exe
Token: SeSystemtimePrivilege	2856	System.exe
Token: SeProfSingleProcessPrivilege	2856	System.exe
Token: SeIncBasePriorityPrivilege	2856	System.exe
Token: SeCreatePagefilePrivilege	2856	System.exe
Token: SeBackupPrivilege	2856	System.exe
Token: SeRestorePrivilege	2856	System.exe
Token: SeShutdownPrivilege	2856	System.exe
Token: SeDebugPrivilege	2856	System.exe
Token: SeSystemEnvironmentPrivilege	2856	System.exe
Token: SeChangeNotifyPrivilege	2856	System.exe
Token: SeRemoteShutdownPrivilege	2856	System.exe
Token: SeUndockPrivilege	2856	System.exe
Token: SeManageVolumePrivilege	2856	System.exe
Token: SeImpersonatePrivilege	2856	System.exe
Token: SeCreateGlobalPrivilege	2856	System.exe
Token: 33	2856	System.exe
Token: 34	2856	System.exe
Token: 35	2856	System.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2856	System.exe

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 2448	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe	30
PID 1976 wrote to memory of 2448	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe	30
PID 1976 wrote to memory of 2448	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe	30
PID 1976 wrote to memory of 2448	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe	30
PID 1976 wrote to memory of 1988	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe	31
PID 1976 wrote to memory of 1988	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe	31
PID 1976 wrote to memory of 1988	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe	31
PID 1976 wrote to memory of 1988	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe	31
PID 2448 wrote to memory of 2412	2448	cmd.exe	34
PID 2448 wrote to memory of 2412	2448	cmd.exe	34
PID 2448 wrote to memory of 2412	2448	cmd.exe	34
PID 2448 wrote to memory of 2412	2448	cmd.exe	34
PID 1988 wrote to memory of 1724	1988	cmd.exe	35
PID 1988 wrote to memory of 1724	1988	cmd.exe	35
PID 1988 wrote to memory of 1724	1988	cmd.exe	35
PID 1988 wrote to memory of 1724	1988	cmd.exe	35
PID 1976 wrote to memory of 2856	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe	37
PID 1976 wrote to memory of 2856	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe	37
PID 1976 wrote to memory of 2856	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe	37
PID 1976 wrote to memory of 2856	1976	f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe	37
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38
PID 2856 wrote to memory of 2640	2856	System.exe	38

System policy modification 1 TTPs 3 IoCs

Modify Registry

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

Views/modifies file attributes 1 TTPs 2 IoCs

Hidden Files and Directories

T1564.001

pid	Process
1724	attrib.exe
2412	attrib.exe

C:\Users\Admin\AppData\Local\Temp\f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe
"C:\Users\Admin\AppData\Local\Temp\f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2448
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\f05d4b5a46ea65ecea6f6c966a9d94456e216fd26c789225fda09ef7f5e2f1c8N.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2412
- 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:1988
- - 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:1724
- C:\Users\Admin\Documents\MSDCSC\System.exe
  "C:\Users\Admin\Documents\MSDCSC\System.exe"
  2⤵
  - Modifies firewall policy service
  - Modifies security service
  - Windows security bypass
  - Disables RegEdit via registry modification
  - Executes dropped EXE
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:2856
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2640

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