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 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	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

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

Disables RegEdit via registry modification 1 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.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
3428	attrib.exe
3796	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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	niggt.exe

Deletes itself 1 IoCs

pid	Process
2972	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
936	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\AntiVirusDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\realtekaudio = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe"	niggt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\realtekaudio = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe"	msdcsc.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	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	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	niggt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
936	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2352	niggt.exe
Token: SeSecurityPrivilege	2352	niggt.exe
Token: SeTakeOwnershipPrivilege	2352	niggt.exe
Token: SeLoadDriverPrivilege	2352	niggt.exe
Token: SeSystemProfilePrivilege	2352	niggt.exe
Token: SeSystemtimePrivilege	2352	niggt.exe
Token: SeProfSingleProcessPrivilege	2352	niggt.exe
Token: SeIncBasePriorityPrivilege	2352	niggt.exe
Token: SeCreatePagefilePrivilege	2352	niggt.exe
Token: SeBackupPrivilege	2352	niggt.exe
Token: SeRestorePrivilege	2352	niggt.exe
Token: SeShutdownPrivilege	2352	niggt.exe
Token: SeDebugPrivilege	2352	niggt.exe
Token: SeSystemEnvironmentPrivilege	2352	niggt.exe
Token: SeChangeNotifyPrivilege	2352	niggt.exe
Token: SeRemoteShutdownPrivilege	2352	niggt.exe
Token: SeUndockPrivilege	2352	niggt.exe
Token: SeManageVolumePrivilege	2352	niggt.exe
Token: SeImpersonatePrivilege	2352	niggt.exe
Token: SeCreateGlobalPrivilege	2352	niggt.exe
Token: 33	2352	niggt.exe
Token: 34	2352	niggt.exe
Token: 35	2352	niggt.exe
Token: 36	2352	niggt.exe
Token: SeIncreaseQuotaPrivilege	936	msdcsc.exe
Token: SeSecurityPrivilege	936	msdcsc.exe
Token: SeTakeOwnershipPrivilege	936	msdcsc.exe
Token: SeLoadDriverPrivilege	936	msdcsc.exe
Token: SeSystemProfilePrivilege	936	msdcsc.exe
Token: SeSystemtimePrivilege	936	msdcsc.exe
Token: SeProfSingleProcessPrivilege	936	msdcsc.exe
Token: SeIncBasePriorityPrivilege	936	msdcsc.exe
Token: SeCreatePagefilePrivilege	936	msdcsc.exe
Token: SeBackupPrivilege	936	msdcsc.exe
Token: SeRestorePrivilege	936	msdcsc.exe
Token: SeShutdownPrivilege	936	msdcsc.exe
Token: SeDebugPrivilege	936	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	936	msdcsc.exe
Token: SeChangeNotifyPrivilege	936	msdcsc.exe
Token: SeRemoteShutdownPrivilege	936	msdcsc.exe
Token: SeUndockPrivilege	936	msdcsc.exe
Token: SeManageVolumePrivilege	936	msdcsc.exe
Token: SeImpersonatePrivilege	936	msdcsc.exe
Token: SeCreateGlobalPrivilege	936	msdcsc.exe
Token: 33	936	msdcsc.exe
Token: 34	936	msdcsc.exe
Token: 35	936	msdcsc.exe
Token: 36	936	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
936	msdcsc.exe

Suspicious use of WriteProcessMemory 59 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2264	2352	niggt.exe	83
PID 2352 wrote to memory of 2264	2352	niggt.exe	83
PID 2352 wrote to memory of 2264	2352	niggt.exe	83
PID 2352 wrote to memory of 1932	2352	niggt.exe	85
PID 2352 wrote to memory of 1932	2352	niggt.exe	85
PID 2352 wrote to memory of 1932	2352	niggt.exe	85
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2352 wrote to memory of 2972	2352	niggt.exe	86
PID 2264 wrote to memory of 3428	2264	cmd.exe	88
PID 2264 wrote to memory of 3428	2264	cmd.exe	88
PID 2264 wrote to memory of 3428	2264	cmd.exe	88
PID 1932 wrote to memory of 3796	1932	cmd.exe	89
PID 1932 wrote to memory of 3796	1932	cmd.exe	89
PID 1932 wrote to memory of 3796	1932	cmd.exe	89
PID 2352 wrote to memory of 936	2352	niggt.exe	90
PID 2352 wrote to memory of 936	2352	niggt.exe	90
PID 2352 wrote to memory of 936	2352	niggt.exe	90
PID 936 wrote to memory of 4860	936	msdcsc.exe	91
PID 936 wrote to memory of 4860	936	msdcsc.exe	91
PID 936 wrote to memory of 4860	936	msdcsc.exe	91
PID 936 wrote to memory of 4788	936	msdcsc.exe	92
PID 936 wrote to memory of 4788	936	msdcsc.exe	92
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93
PID 936 wrote to memory of 1424	936	msdcsc.exe	93

System policy modification 1 TTPs 3 IoCs

Modify Registry

description	ioc	Process
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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	msdcsc.exe

Views/modifies file attributes 1 TTPs 2 IoCs

Hidden Files and Directories

T1564.001

pid	Process
3796	attrib.exe
3428	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:2352
- 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:2264
- - 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:3428
- 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:1932
- - 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:3796
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2972
- 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
  - 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:936
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:4860
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    PID:4788
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1424

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