darkcomet | 4c5a7e2f9d2f9c701b370e352bba7a56c6408f37241b8725c497d6e72fd43adc

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"	SERVER.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	SERVER.EXE

Executes dropped EXE 2 IoCs

pid	Process
2772	SERVER.EXE
2696	msdcsc.exe

Loads dropped DLL 4 IoCs

pid	Process
604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe
604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe
2772	SERVER.EXE
2772	SERVER.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	SERVER.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 5 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	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SERVER.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	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
316	EXCEL.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2696	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2772	SERVER.EXE
Token: SeSecurityPrivilege	2772	SERVER.EXE
Token: SeTakeOwnershipPrivilege	2772	SERVER.EXE
Token: SeLoadDriverPrivilege	2772	SERVER.EXE
Token: SeSystemProfilePrivilege	2772	SERVER.EXE
Token: SeSystemtimePrivilege	2772	SERVER.EXE
Token: SeProfSingleProcessPrivilege	2772	SERVER.EXE
Token: SeIncBasePriorityPrivilege	2772	SERVER.EXE
Token: SeCreatePagefilePrivilege	2772	SERVER.EXE
Token: SeBackupPrivilege	2772	SERVER.EXE
Token: SeRestorePrivilege	2772	SERVER.EXE
Token: SeShutdownPrivilege	2772	SERVER.EXE
Token: SeDebugPrivilege	2772	SERVER.EXE
Token: SeSystemEnvironmentPrivilege	2772	SERVER.EXE
Token: SeChangeNotifyPrivilege	2772	SERVER.EXE
Token: SeRemoteShutdownPrivilege	2772	SERVER.EXE
Token: SeUndockPrivilege	2772	SERVER.EXE
Token: SeManageVolumePrivilege	2772	SERVER.EXE
Token: SeImpersonatePrivilege	2772	SERVER.EXE
Token: SeCreateGlobalPrivilege	2772	SERVER.EXE
Token: 33	2772	SERVER.EXE
Token: 34	2772	SERVER.EXE
Token: 35	2772	SERVER.EXE
Token: SeIncreaseQuotaPrivilege	2696	msdcsc.exe
Token: SeSecurityPrivilege	2696	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2696	msdcsc.exe
Token: SeLoadDriverPrivilege	2696	msdcsc.exe
Token: SeSystemProfilePrivilege	2696	msdcsc.exe
Token: SeSystemtimePrivilege	2696	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2696	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2696	msdcsc.exe
Token: SeCreatePagefilePrivilege	2696	msdcsc.exe
Token: SeBackupPrivilege	2696	msdcsc.exe
Token: SeRestorePrivilege	2696	msdcsc.exe
Token: SeShutdownPrivilege	2696	msdcsc.exe
Token: SeDebugPrivilege	2696	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2696	msdcsc.exe
Token: SeChangeNotifyPrivilege	2696	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2696	msdcsc.exe
Token: SeUndockPrivilege	2696	msdcsc.exe
Token: SeManageVolumePrivilege	2696	msdcsc.exe
Token: SeImpersonatePrivilege	2696	msdcsc.exe
Token: SeCreateGlobalPrivilege	2696	msdcsc.exe
Token: 33	2696	msdcsc.exe
Token: 34	2696	msdcsc.exe
Token: 35	2696	msdcsc.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
316	EXCEL.EXE
316	EXCEL.EXE
316	EXCEL.EXE
2696	msdcsc.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 604 wrote to memory of 316	604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe	31
PID 604 wrote to memory of 316	604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe	31
PID 604 wrote to memory of 316	604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe	31
PID 604 wrote to memory of 316	604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe	31
PID 604 wrote to memory of 316	604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe	31
PID 604 wrote to memory of 316	604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe	31
PID 604 wrote to memory of 316	604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe	31
PID 604 wrote to memory of 316	604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe	31
PID 604 wrote to memory of 316	604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe	31
PID 604 wrote to memory of 2772	604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe	32
PID 604 wrote to memory of 2772	604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe	32
PID 604 wrote to memory of 2772	604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe	32
PID 604 wrote to memory of 2772	604	JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe	32
PID 2772 wrote to memory of 2696	2772	SERVER.EXE	33
PID 2772 wrote to memory of 2696	2772	SERVER.EXE	33
PID 2772 wrote to memory of 2696	2772	SERVER.EXE	33
PID 2772 wrote to memory of 2696	2772	SERVER.EXE	33
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34
PID 2696 wrote to memory of 2808	2696	msdcsc.exe	34

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

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6739ada96f2e72226478ba7a2e974d60.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:604
- C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
  "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde
  2⤵
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  PID:316
- C:\Users\Admin\AppData\Local\Temp\SERVER.EXE
  "C:\Users\Admin\AppData\Local\Temp\SERVER.EXE"
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in Drivers directory
  - 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:2772
- - 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:2696
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:2808

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

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry