darkcomet | 6545caa168c35ad901f0741c4f8cd34c37198f671b5a36fd71e30d4b42d412d3

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	uncrypted.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-1-5-21-3756129449-3121373848-4276368241-1000\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
4540	attrib.exe
4928	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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	uncrypted.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	8640a191e4eacd387fb6d21147db6a70_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
5068	uncrypted.exe
3552	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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	uncrypted.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4060-0-0x0000000000400000-0x000000000050C000-memory.dmp	autoit_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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8640a191e4eacd387fb6d21147db6a70_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uncrypted.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3552	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	5068	uncrypted.exe
Token: SeSecurityPrivilege	5068	uncrypted.exe
Token: SeTakeOwnershipPrivilege	5068	uncrypted.exe
Token: SeLoadDriverPrivilege	5068	uncrypted.exe
Token: SeSystemProfilePrivilege	5068	uncrypted.exe
Token: SeSystemtimePrivilege	5068	uncrypted.exe
Token: SeProfSingleProcessPrivilege	5068	uncrypted.exe
Token: SeIncBasePriorityPrivilege	5068	uncrypted.exe
Token: SeCreatePagefilePrivilege	5068	uncrypted.exe
Token: SeBackupPrivilege	5068	uncrypted.exe
Token: SeRestorePrivilege	5068	uncrypted.exe
Token: SeShutdownPrivilege	5068	uncrypted.exe
Token: SeDebugPrivilege	5068	uncrypted.exe
Token: SeSystemEnvironmentPrivilege	5068	uncrypted.exe
Token: SeChangeNotifyPrivilege	5068	uncrypted.exe
Token: SeRemoteShutdownPrivilege	5068	uncrypted.exe
Token: SeUndockPrivilege	5068	uncrypted.exe
Token: SeManageVolumePrivilege	5068	uncrypted.exe
Token: SeImpersonatePrivilege	5068	uncrypted.exe
Token: SeCreateGlobalPrivilege	5068	uncrypted.exe
Token: 33	5068	uncrypted.exe
Token: 34	5068	uncrypted.exe
Token: 35	5068	uncrypted.exe
Token: 36	5068	uncrypted.exe
Token: SeIncreaseQuotaPrivilege	3552	msdcsc.exe
Token: SeSecurityPrivilege	3552	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3552	msdcsc.exe
Token: SeLoadDriverPrivilege	3552	msdcsc.exe
Token: SeSystemProfilePrivilege	3552	msdcsc.exe
Token: SeSystemtimePrivilege	3552	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3552	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3552	msdcsc.exe
Token: SeCreatePagefilePrivilege	3552	msdcsc.exe
Token: SeBackupPrivilege	3552	msdcsc.exe
Token: SeRestorePrivilege	3552	msdcsc.exe
Token: SeShutdownPrivilege	3552	msdcsc.exe
Token: SeDebugPrivilege	3552	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3552	msdcsc.exe
Token: SeChangeNotifyPrivilege	3552	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3552	msdcsc.exe
Token: SeUndockPrivilege	3552	msdcsc.exe
Token: SeManageVolumePrivilege	3552	msdcsc.exe
Token: SeImpersonatePrivilege	3552	msdcsc.exe
Token: SeCreateGlobalPrivilege	3552	msdcsc.exe
Token: 33	3552	msdcsc.exe
Token: 34	3552	msdcsc.exe
Token: 35	3552	msdcsc.exe
Token: 36	3552	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3552	msdcsc.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 4060 wrote to memory of 5068	4060	8640a191e4eacd387fb6d21147db6a70_JaffaCakes118.exe	85
PID 4060 wrote to memory of 5068	4060	8640a191e4eacd387fb6d21147db6a70_JaffaCakes118.exe	85
PID 4060 wrote to memory of 5068	4060	8640a191e4eacd387fb6d21147db6a70_JaffaCakes118.exe	85
PID 5068 wrote to memory of 3208	5068	uncrypted.exe	95
PID 5068 wrote to memory of 3208	5068	uncrypted.exe	95
PID 5068 wrote to memory of 3208	5068	uncrypted.exe	95
PID 5068 wrote to memory of 1652	5068	uncrypted.exe	97
PID 5068 wrote to memory of 1652	5068	uncrypted.exe	97
PID 5068 wrote to memory of 1652	5068	uncrypted.exe	97
PID 5068 wrote to memory of 3552	5068	uncrypted.exe	98
PID 5068 wrote to memory of 3552	5068	uncrypted.exe	98
PID 5068 wrote to memory of 3552	5068	uncrypted.exe	98
PID 3208 wrote to memory of 4540	3208	cmd.exe	100
PID 3208 wrote to memory of 4540	3208	cmd.exe	100
PID 3208 wrote to memory of 4540	3208	cmd.exe	100
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 1652 wrote to memory of 4928	1652	cmd.exe	102
PID 1652 wrote to memory of 4928	1652	cmd.exe	102
PID 1652 wrote to memory of 4928	1652	cmd.exe	102
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101
PID 3552 wrote to memory of 2796	3552	msdcsc.exe	101

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
4540	attrib.exe
4928	attrib.exe

C:\Users\Admin\AppData\Local\Temp\8640a191e4eacd387fb6d21147db6a70_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8640a191e4eacd387fb6d21147db6a70_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4060
- C:\Users\Admin\AppData\Local\Temp\uncrypted.exe
  "C:\Users\Admin\AppData\Local\Temp\uncrypted.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:5068
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\uncrypted.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3208
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\uncrypted.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:4540
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1652
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:4928
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\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
    - Suspicious use of WriteProcessMemory
    - System policy modification
    PID:3552
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:2796

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