darkcomet | 109ebb16b070770f48359880d6f643c23612a1bb56054790c164b0cde4312880

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe"	niggt.exe

Modifies firewall policy service 3 TTPs 6 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	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	iexplore.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	iexplore.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	iexplore.exe

Modifies security service 2 TTPs 2 IoCs

Modify Registry

Windows Service

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

Windows security bypass 2 TTPs 4 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"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	iexplore.exe

Disables RegEdit via registry modification 2 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4152190078-1497776152-96910572-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4152190078-1497776152-96910572-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	iexplore.exe

Disables Task Manager via registry modification
evasion

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
4420	attrib.exe
4980	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-1-5-21-4152190078-1497776152-96910572-1000\Control Panel\International\Geo\Nation	niggt.exe

Deletes itself 1 IoCs

pid	Process
4708	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
3448	msdcsc.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\UpdatesDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4152190078-1497776152-96910572-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\realtekaudio = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4152190078-1497776152-96910572-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\realtekaudio = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4152190078-1497776152-96910572-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\realtekaudio = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe"	niggt.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4152190078-1497776152-96910572-1000\Control Panel\Desktop\Wallpaper	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4152190078-1497776152-96910572-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3448 set thread context of 1520	3448	msdcsc.exe	88

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 9 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	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.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	niggt.exe

Modifies registry class 1 IoCs

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

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
252	NOTEPAD.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1520	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2400	niggt.exe
Token: SeSecurityPrivilege	2400	niggt.exe
Token: SeTakeOwnershipPrivilege	2400	niggt.exe
Token: SeLoadDriverPrivilege	2400	niggt.exe
Token: SeSystemProfilePrivilege	2400	niggt.exe
Token: SeSystemtimePrivilege	2400	niggt.exe
Token: SeProfSingleProcessPrivilege	2400	niggt.exe
Token: SeIncBasePriorityPrivilege	2400	niggt.exe
Token: SeCreatePagefilePrivilege	2400	niggt.exe
Token: SeBackupPrivilege	2400	niggt.exe
Token: SeRestorePrivilege	2400	niggt.exe
Token: SeShutdownPrivilege	2400	niggt.exe
Token: SeDebugPrivilege	2400	niggt.exe
Token: SeSystemEnvironmentPrivilege	2400	niggt.exe
Token: SeChangeNotifyPrivilege	2400	niggt.exe
Token: SeRemoteShutdownPrivilege	2400	niggt.exe
Token: SeUndockPrivilege	2400	niggt.exe
Token: SeManageVolumePrivilege	2400	niggt.exe
Token: SeImpersonatePrivilege	2400	niggt.exe
Token: SeCreateGlobalPrivilege	2400	niggt.exe
Token: 33	2400	niggt.exe
Token: 34	2400	niggt.exe
Token: 35	2400	niggt.exe
Token: 36	2400	niggt.exe
Token: SeIncreaseQuotaPrivilege	3448	msdcsc.exe
Token: SeSecurityPrivilege	3448	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3448	msdcsc.exe
Token: SeLoadDriverPrivilege	3448	msdcsc.exe
Token: SeSystemProfilePrivilege	3448	msdcsc.exe
Token: SeSystemtimePrivilege	3448	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3448	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3448	msdcsc.exe
Token: SeCreatePagefilePrivilege	3448	msdcsc.exe
Token: SeBackupPrivilege	3448	msdcsc.exe
Token: SeRestorePrivilege	3448	msdcsc.exe
Token: SeShutdownPrivilege	3448	msdcsc.exe
Token: SeDebugPrivilege	3448	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3448	msdcsc.exe
Token: SeChangeNotifyPrivilege	3448	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3448	msdcsc.exe
Token: SeUndockPrivilege	3448	msdcsc.exe
Token: SeManageVolumePrivilege	3448	msdcsc.exe
Token: SeImpersonatePrivilege	3448	msdcsc.exe
Token: SeCreateGlobalPrivilege	3448	msdcsc.exe
Token: 33	3448	msdcsc.exe
Token: 34	3448	msdcsc.exe
Token: 35	3448	msdcsc.exe
Token: 36	3448	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	1520	iexplore.exe
Token: SeSecurityPrivilege	1520	iexplore.exe
Token: SeTakeOwnershipPrivilege	1520	iexplore.exe
Token: SeLoadDriverPrivilege	1520	iexplore.exe
Token: SeSystemProfilePrivilege	1520	iexplore.exe
Token: SeSystemtimePrivilege	1520	iexplore.exe
Token: SeProfSingleProcessPrivilege	1520	iexplore.exe
Token: SeIncBasePriorityPrivilege	1520	iexplore.exe
Token: SeCreatePagefilePrivilege	1520	iexplore.exe
Token: SeBackupPrivilege	1520	iexplore.exe
Token: SeRestorePrivilege	1520	iexplore.exe
Token: SeShutdownPrivilege	1520	iexplore.exe
Token: SeDebugPrivilege	1520	iexplore.exe
Token: SeSystemEnvironmentPrivilege	1520	iexplore.exe
Token: SeChangeNotifyPrivilege	1520	iexplore.exe
Token: SeRemoteShutdownPrivilege	1520	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1520	iexplore.exe

Suspicious use of WriteProcessMemory 59 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 3436	2400	niggt.exe	80
PID 2400 wrote to memory of 3436	2400	niggt.exe	80
PID 2400 wrote to memory of 3436	2400	niggt.exe	80
PID 2400 wrote to memory of 1680	2400	niggt.exe	82
PID 2400 wrote to memory of 1680	2400	niggt.exe	82
PID 2400 wrote to memory of 1680	2400	niggt.exe	82
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 2400 wrote to memory of 4708	2400	niggt.exe	83
PID 3436 wrote to memory of 4420	3436	cmd.exe	85
PID 3436 wrote to memory of 4420	3436	cmd.exe	85
PID 3436 wrote to memory of 4420	3436	cmd.exe	85
PID 1680 wrote to memory of 4980	1680	cmd.exe	86
PID 1680 wrote to memory of 4980	1680	cmd.exe	86
PID 1680 wrote to memory of 4980	1680	cmd.exe	86
PID 2400 wrote to memory of 3448	2400	niggt.exe	87
PID 2400 wrote to memory of 3448	2400	niggt.exe	87
PID 2400 wrote to memory of 3448	2400	niggt.exe	87
PID 3448 wrote to memory of 1520	3448	msdcsc.exe	88
PID 3448 wrote to memory of 1520	3448	msdcsc.exe	88
PID 3448 wrote to memory of 1520	3448	msdcsc.exe	88
PID 3448 wrote to memory of 1520	3448	msdcsc.exe	88
PID 3448 wrote to memory of 1520	3448	msdcsc.exe	88
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89
PID 1520 wrote to memory of 2480	1520	iexplore.exe	89

System policy modification 1 TTPs 3 IoCs

Modify Registry

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

Views/modifies file attributes 1 TTPs 2 IoCs

Hidden Files and Directories

T1564.001

pid	Process
4420	attrib.exe
4980	attrib.exe

C:\Users\Admin\AppData\Local\Temp\niggt.exe
"C:\Users\Admin\AppData\Local\Temp\niggt.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:2400
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\niggt.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3436
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\niggt.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:4420
- 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:1680
- - 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:4980
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4708
- C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe
  "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.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
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:3448
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies firewall policy service
    - Modifies security service
    - Windows security bypass
    - Disables RegEdit via registry modification
    - Adds Run key to start application
    - Sets desktop wallpaper using registry
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1520
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:2480

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\nigger.txt
1⤵
- Opens file in notepad (likely ransom note)
PID:252

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