darkcomet | ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\MSDCSC\\msdcsc.exe"	LOUBNA.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-1-5-21-3442511616-637977696-3186306149-1000\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
3604	attrib.exe
3144	attrib.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	LOUBNA.EXE

Executes dropped EXE 2 IoCs

pid	Process
4584	LOUBNA.EXE
1008	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 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\image = "C:\\MSDCSC\\msdcsc.exe"	LOUBNA.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	LOUBNA.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	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1008	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4584	LOUBNA.EXE
Token: SeSecurityPrivilege	4584	LOUBNA.EXE
Token: SeTakeOwnershipPrivilege	4584	LOUBNA.EXE
Token: SeLoadDriverPrivilege	4584	LOUBNA.EXE
Token: SeSystemProfilePrivilege	4584	LOUBNA.EXE
Token: SeSystemtimePrivilege	4584	LOUBNA.EXE
Token: SeProfSingleProcessPrivilege	4584	LOUBNA.EXE
Token: SeIncBasePriorityPrivilege	4584	LOUBNA.EXE
Token: SeCreatePagefilePrivilege	4584	LOUBNA.EXE
Token: SeBackupPrivilege	4584	LOUBNA.EXE
Token: SeRestorePrivilege	4584	LOUBNA.EXE
Token: SeShutdownPrivilege	4584	LOUBNA.EXE
Token: SeDebugPrivilege	4584	LOUBNA.EXE
Token: SeSystemEnvironmentPrivilege	4584	LOUBNA.EXE
Token: SeChangeNotifyPrivilege	4584	LOUBNA.EXE
Token: SeRemoteShutdownPrivilege	4584	LOUBNA.EXE
Token: SeUndockPrivilege	4584	LOUBNA.EXE
Token: SeManageVolumePrivilege	4584	LOUBNA.EXE
Token: SeImpersonatePrivilege	4584	LOUBNA.EXE
Token: SeCreateGlobalPrivilege	4584	LOUBNA.EXE
Token: 33	4584	LOUBNA.EXE
Token: 34	4584	LOUBNA.EXE
Token: 35	4584	LOUBNA.EXE
Token: 36	4584	LOUBNA.EXE
Token: SeIncreaseQuotaPrivilege	1008	msdcsc.exe
Token: SeSecurityPrivilege	1008	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1008	msdcsc.exe
Token: SeLoadDriverPrivilege	1008	msdcsc.exe
Token: SeSystemProfilePrivilege	1008	msdcsc.exe
Token: SeSystemtimePrivilege	1008	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1008	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1008	msdcsc.exe
Token: SeCreatePagefilePrivilege	1008	msdcsc.exe
Token: SeBackupPrivilege	1008	msdcsc.exe
Token: SeRestorePrivilege	1008	msdcsc.exe
Token: SeShutdownPrivilege	1008	msdcsc.exe
Token: SeDebugPrivilege	1008	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1008	msdcsc.exe
Token: SeChangeNotifyPrivilege	1008	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1008	msdcsc.exe
Token: SeUndockPrivilege	1008	msdcsc.exe
Token: SeManageVolumePrivilege	1008	msdcsc.exe
Token: SeImpersonatePrivilege	1008	msdcsc.exe
Token: SeCreateGlobalPrivilege	1008	msdcsc.exe
Token: 33	1008	msdcsc.exe
Token: 34	1008	msdcsc.exe
Token: 35	1008	msdcsc.exe
Token: 36	1008	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1008	msdcsc.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3400 wrote to memory of 4584	3400	ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe	83
PID 3400 wrote to memory of 4584	3400	ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe	83
PID 3400 wrote to memory of 4584	3400	ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe	83
PID 4584 wrote to memory of 2536	4584	LOUBNA.EXE	84
PID 4584 wrote to memory of 2536	4584	LOUBNA.EXE	84
PID 4584 wrote to memory of 2536	4584	LOUBNA.EXE	84
PID 4584 wrote to memory of 2532	4584	LOUBNA.EXE	86
PID 4584 wrote to memory of 2532	4584	LOUBNA.EXE	86
PID 4584 wrote to memory of 2532	4584	LOUBNA.EXE	86
PID 2536 wrote to memory of 3604	2536	cmd.exe	88
PID 2536 wrote to memory of 3604	2536	cmd.exe	88
PID 2536 wrote to memory of 3604	2536	cmd.exe	88
PID 2532 wrote to memory of 3144	2532	cmd.exe	89
PID 2532 wrote to memory of 3144	2532	cmd.exe	89
PID 2532 wrote to memory of 3144	2532	cmd.exe	89
PID 4584 wrote to memory of 1008	4584	LOUBNA.EXE	90
PID 4584 wrote to memory of 1008	4584	LOUBNA.EXE	90
PID 4584 wrote to memory of 1008	4584	LOUBNA.EXE	90

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
3604	attrib.exe
3144	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe
"C:\Users\Admin\AppData\Local\Temp\ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3400
- C:\Users\Admin\AppData\Local\LOUBNA.EXE
  "C:\Users\Admin\AppData\Local\LOUBNA.EXE"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4584
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\LOUBNA.EXE" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2536
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\LOUBNA.EXE" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:3604
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2532
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:3144
- - C:\MSDCSC\msdcsc.exe
    "C:\MSDCSC\msdcsc.exe"
    3⤵
    - 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
    - System policy modification
    PID:1008

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