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
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	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-1-5-21-1488793075-819845221-1497111674-1000\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
2772	attrib.exe
2776	attrib.exe

Executes dropped EXE 2 IoCs

pid	Process
2716	LOUBNA.EXE
2648	msdcsc.exe

Loads dropped DLL 4 IoCs

pid	Process
2224	ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe
2224	ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe
2716	LOUBNA.EXE
2716	LOUBNA.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-1-5-21-1488793075-819845221-1497111674-1000\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 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	LOUBNA.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DllHost.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
2648	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2716	LOUBNA.EXE
Token: SeSecurityPrivilege	2716	LOUBNA.EXE
Token: SeTakeOwnershipPrivilege	2716	LOUBNA.EXE
Token: SeLoadDriverPrivilege	2716	LOUBNA.EXE
Token: SeSystemProfilePrivilege	2716	LOUBNA.EXE
Token: SeSystemtimePrivilege	2716	LOUBNA.EXE
Token: SeProfSingleProcessPrivilege	2716	LOUBNA.EXE
Token: SeIncBasePriorityPrivilege	2716	LOUBNA.EXE
Token: SeCreatePagefilePrivilege	2716	LOUBNA.EXE
Token: SeBackupPrivilege	2716	LOUBNA.EXE
Token: SeRestorePrivilege	2716	LOUBNA.EXE
Token: SeShutdownPrivilege	2716	LOUBNA.EXE
Token: SeDebugPrivilege	2716	LOUBNA.EXE
Token: SeSystemEnvironmentPrivilege	2716	LOUBNA.EXE
Token: SeChangeNotifyPrivilege	2716	LOUBNA.EXE
Token: SeRemoteShutdownPrivilege	2716	LOUBNA.EXE
Token: SeUndockPrivilege	2716	LOUBNA.EXE
Token: SeManageVolumePrivilege	2716	LOUBNA.EXE
Token: SeImpersonatePrivilege	2716	LOUBNA.EXE
Token: SeCreateGlobalPrivilege	2716	LOUBNA.EXE
Token: 33	2716	LOUBNA.EXE
Token: 34	2716	LOUBNA.EXE
Token: 35	2716	LOUBNA.EXE
Token: SeIncreaseQuotaPrivilege	2648	msdcsc.exe
Token: SeSecurityPrivilege	2648	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2648	msdcsc.exe
Token: SeLoadDriverPrivilege	2648	msdcsc.exe
Token: SeSystemProfilePrivilege	2648	msdcsc.exe
Token: SeSystemtimePrivilege	2648	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2648	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2648	msdcsc.exe
Token: SeCreatePagefilePrivilege	2648	msdcsc.exe
Token: SeBackupPrivilege	2648	msdcsc.exe
Token: SeRestorePrivilege	2648	msdcsc.exe
Token: SeShutdownPrivilege	2648	msdcsc.exe
Token: SeDebugPrivilege	2648	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2648	msdcsc.exe
Token: SeChangeNotifyPrivilege	2648	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2648	msdcsc.exe
Token: SeUndockPrivilege	2648	msdcsc.exe
Token: SeManageVolumePrivilege	2648	msdcsc.exe
Token: SeImpersonatePrivilege	2648	msdcsc.exe
Token: SeCreateGlobalPrivilege	2648	msdcsc.exe
Token: 33	2648	msdcsc.exe
Token: 34	2648	msdcsc.exe
Token: 35	2648	msdcsc.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2596	DllHost.exe
2596	DllHost.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2648	msdcsc.exe
2596	DllHost.exe
2596	DllHost.exe
2596	DllHost.exe
2596	DllHost.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 2716	2224	ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe	30
PID 2224 wrote to memory of 2716	2224	ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe	30
PID 2224 wrote to memory of 2716	2224	ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe	30
PID 2224 wrote to memory of 2716	2224	ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe	30
PID 2716 wrote to memory of 2932	2716	LOUBNA.EXE	31
PID 2716 wrote to memory of 2932	2716	LOUBNA.EXE	31
PID 2716 wrote to memory of 2932	2716	LOUBNA.EXE	31
PID 2716 wrote to memory of 2932	2716	LOUBNA.EXE	31
PID 2716 wrote to memory of 2580	2716	LOUBNA.EXE	33
PID 2716 wrote to memory of 2580	2716	LOUBNA.EXE	33
PID 2716 wrote to memory of 2580	2716	LOUBNA.EXE	33
PID 2716 wrote to memory of 2580	2716	LOUBNA.EXE	33
PID 2932 wrote to memory of 2772	2932	cmd.exe	35
PID 2932 wrote to memory of 2772	2932	cmd.exe	35
PID 2932 wrote to memory of 2772	2932	cmd.exe	35
PID 2932 wrote to memory of 2772	2932	cmd.exe	35
PID 2580 wrote to memory of 2776	2580	cmd.exe	36
PID 2580 wrote to memory of 2776	2580	cmd.exe	36
PID 2580 wrote to memory of 2776	2580	cmd.exe	36
PID 2580 wrote to memory of 2776	2580	cmd.exe	36
PID 2716 wrote to memory of 2648	2716	LOUBNA.EXE	38
PID 2716 wrote to memory of 2648	2716	LOUBNA.EXE	38
PID 2716 wrote to memory of 2648	2716	LOUBNA.EXE	38
PID 2716 wrote to memory of 2648	2716	LOUBNA.EXE	38

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
2772	attrib.exe
2776	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe
"C:\Users\Admin\AppData\Local\Temp\ec1ca6b63eb88d819b6a00a2c83f1002946b344f93fd69d8d63ef6709e235d24N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\LOUBNA.EXE
  "C:\Users\Admin\AppData\Local\LOUBNA.EXE"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2716
- - 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:2932
  - - 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:2772
- - 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:2580
  - - 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:2776
- - 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:2648

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2596

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