darkcomet | f19cedc8f5dd2c0a5d788a55f2232c8e26b32067fe113762688d83aff4ce99f6

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\Windows gezgini\\explorer.exe"	bebe.exe

Modifies firewall policy service 3 TTPs 6 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"	explorer.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
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	explorer.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"	explorer.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"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	explorer.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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\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
4140	attrib.exe
4300	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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	bebe.exe

Executes dropped EXE 1 IoCs

pid	Process
392	explorer.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"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	explorer.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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Windows\\system32\\Windows gezgini\\explorer.exe"	bebe.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Windows\\system32\\Windows gezgini\\explorer.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Windows\\system32\\Windows gezgini\\explorer.exe"	iexplore.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Windows gezgini\explorer.exe	bebe.exe
File opened for modification	C:\Windows\SysWOW64\Windows gezgini\explorer.exe	bebe.exe
File opened for modification	C:\Windows\SysWOW64\Windows gezgini\	bebe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 392 set thread context of 1908	392	explorer.exe	90

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	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	explorer.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	bebe.exe

Modifies registry class 1 IoCs

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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4932	bebe.exe
Token: SeSecurityPrivilege	4932	bebe.exe
Token: SeTakeOwnershipPrivilege	4932	bebe.exe
Token: SeLoadDriverPrivilege	4932	bebe.exe
Token: SeSystemProfilePrivilege	4932	bebe.exe
Token: SeSystemtimePrivilege	4932	bebe.exe
Token: SeProfSingleProcessPrivilege	4932	bebe.exe
Token: SeIncBasePriorityPrivilege	4932	bebe.exe
Token: SeCreatePagefilePrivilege	4932	bebe.exe
Token: SeBackupPrivilege	4932	bebe.exe
Token: SeRestorePrivilege	4932	bebe.exe
Token: SeShutdownPrivilege	4932	bebe.exe
Token: SeDebugPrivilege	4932	bebe.exe
Token: SeSystemEnvironmentPrivilege	4932	bebe.exe
Token: SeChangeNotifyPrivilege	4932	bebe.exe
Token: SeRemoteShutdownPrivilege	4932	bebe.exe
Token: SeUndockPrivilege	4932	bebe.exe
Token: SeManageVolumePrivilege	4932	bebe.exe
Token: SeImpersonatePrivilege	4932	bebe.exe
Token: SeCreateGlobalPrivilege	4932	bebe.exe
Token: 33	4932	bebe.exe
Token: 34	4932	bebe.exe
Token: 35	4932	bebe.exe
Token: 36	4932	bebe.exe
Token: SeIncreaseQuotaPrivilege	392	explorer.exe
Token: SeSecurityPrivilege	392	explorer.exe
Token: SeTakeOwnershipPrivilege	392	explorer.exe
Token: SeLoadDriverPrivilege	392	explorer.exe
Token: SeSystemProfilePrivilege	392	explorer.exe
Token: SeSystemtimePrivilege	392	explorer.exe
Token: SeProfSingleProcessPrivilege	392	explorer.exe
Token: SeIncBasePriorityPrivilege	392	explorer.exe
Token: SeCreatePagefilePrivilege	392	explorer.exe
Token: SeBackupPrivilege	392	explorer.exe
Token: SeRestorePrivilege	392	explorer.exe
Token: SeShutdownPrivilege	392	explorer.exe
Token: SeDebugPrivilege	392	explorer.exe
Token: SeSystemEnvironmentPrivilege	392	explorer.exe
Token: SeChangeNotifyPrivilege	392	explorer.exe
Token: SeRemoteShutdownPrivilege	392	explorer.exe
Token: SeUndockPrivilege	392	explorer.exe
Token: SeManageVolumePrivilege	392	explorer.exe
Token: SeImpersonatePrivilege	392	explorer.exe
Token: SeCreateGlobalPrivilege	392	explorer.exe
Token: 33	392	explorer.exe
Token: 34	392	explorer.exe
Token: 35	392	explorer.exe
Token: 36	392	explorer.exe
Token: SeIncreaseQuotaPrivilege	1908	iexplore.exe
Token: SeSecurityPrivilege	1908	iexplore.exe
Token: SeTakeOwnershipPrivilege	1908	iexplore.exe
Token: SeLoadDriverPrivilege	1908	iexplore.exe
Token: SeSystemProfilePrivilege	1908	iexplore.exe
Token: SeSystemtimePrivilege	1908	iexplore.exe
Token: SeProfSingleProcessPrivilege	1908	iexplore.exe
Token: SeIncBasePriorityPrivilege	1908	iexplore.exe
Token: SeCreatePagefilePrivilege	1908	iexplore.exe
Token: SeBackupPrivilege	1908	iexplore.exe
Token: SeRestorePrivilege	1908	iexplore.exe
Token: SeShutdownPrivilege	1908	iexplore.exe
Token: SeDebugPrivilege	1908	iexplore.exe
Token: SeSystemEnvironmentPrivilege	1908	iexplore.exe
Token: SeChangeNotifyPrivilege	1908	iexplore.exe
Token: SeRemoteShutdownPrivilege	1908	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1908	iexplore.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 648	4932	bebe.exe	83
PID 4932 wrote to memory of 648	4932	bebe.exe	83
PID 4932 wrote to memory of 648	4932	bebe.exe	83
PID 4932 wrote to memory of 1600	4932	bebe.exe	85
PID 4932 wrote to memory of 1600	4932	bebe.exe	85
PID 4932 wrote to memory of 1600	4932	bebe.exe	85
PID 648 wrote to memory of 4300	648	cmd.exe	87
PID 648 wrote to memory of 4300	648	cmd.exe	87
PID 648 wrote to memory of 4300	648	cmd.exe	87
PID 1600 wrote to memory of 4140	1600	cmd.exe	88
PID 1600 wrote to memory of 4140	1600	cmd.exe	88
PID 1600 wrote to memory of 4140	1600	cmd.exe	88
PID 4932 wrote to memory of 392	4932	bebe.exe	89
PID 4932 wrote to memory of 392	4932	bebe.exe	89
PID 4932 wrote to memory of 392	4932	bebe.exe	89
PID 392 wrote to memory of 1908	392	explorer.exe	90
PID 392 wrote to memory of 1908	392	explorer.exe	90
PID 392 wrote to memory of 1908	392	explorer.exe	90
PID 392 wrote to memory of 1908	392	explorer.exe	90
PID 392 wrote to memory of 1908	392	explorer.exe	90
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91
PID 1908 wrote to memory of 3588	1908	iexplore.exe	91

System policy modification 1 TTPs 3 IoCs

Modify Registry

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

Views/modifies file attributes 1 TTPs 2 IoCs

Hidden Files and Directories

T1564.001

pid	Process
4300	attrib.exe
4140	attrib.exe

C:\Users\Admin\AppData\Local\Temp\bebe.exe
"C:\Users\Admin\AppData\Local\Temp\bebe.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4932
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\bebe.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:648
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\bebe.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:4300
- 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:1600
- - 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:4140
- C:\Windows\SysWOW64\Windows gezgini\explorer.exe
  "C:\Windows\system32\Windows gezgini\explorer.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:392
- - 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
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1908
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:3588

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /7
1⤵
PID:1268

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1984

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