darkcomet | 796f9fce957141ba80aadad317bccbf5d7da642b27dd42987acb7494bf440cea

Processes:

svrdarkcry.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe"	svrdarkcry.exe

Modifies firewall policy service 3 TTPs 3 IoCs

evasion

Modify Registry

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

Processes:

explorer.exe

description	ioc	process
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
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	explorer.exe

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Windows Service
T1543.003

Processes:

explorer.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" explorer.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	explorer.exe

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

explorer.exe

description	ioc	process
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"	explorer.exe

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

explorer.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	explorer.exe

Disables Task Manager via registry modification
evasion

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

Processes:

svrdarkcry.exeexplorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	svrdarkcry.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

Processes:

8ecb60530662248b182dcf49bd700911_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	8ecb60530662248b182dcf49bd700911_JaffaCakes118.exe

Executes dropped EXE 3 IoCs

Processes:

svrdarkcry.exeESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exesvrdarkcry.exe

pid process

1560 svrdarkcry.exe
920 ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe
1220 svrdarkcry.exe

pid	process
1560	svrdarkcry.exe
920	ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe
1220	svrdarkcry.exe

Loads dropped DLL 4 IoCs

Processes:

ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe

pid	process
920	ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe
920	ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe
920	ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe
920	ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

Processes:

svrdarkcry.exenotepad.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	svrdarkcry.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	notepad.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

svrdarkcry.exesvrdarkcry.exeexplorer.exe

description	pid	process	target process
PID 1560 set thread context of 1220	1560	svrdarkcry.exe	svrdarkcry.exe
PID 1220 set thread context of 4608	1220	svrdarkcry.exe	explorer.exe
PID 4608 set thread context of 1996	4608	explorer.exe	explorer.exe

UPX packed file 11 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/1220-28-0x0000000013140000-0x00000000131FD000-memory.dmp	upx
behavioral2/memory/1220-26-0x0000000013140000-0x00000000131FD000-memory.dmp	upx
behavioral2/memory/1220-36-0x0000000013140000-0x00000000131FD000-memory.dmp	upx
behavioral2/memory/1220-35-0x0000000013140000-0x00000000131FD000-memory.dmp	upx
behavioral2/memory/1220-24-0x0000000013140000-0x00000000131FD000-memory.dmp	upx
behavioral2/memory/1220-42-0x0000000013140000-0x00000000131FD000-memory.dmp	upx
behavioral2/memory/1996-44-0x0000000013140000-0x00000000131FD000-memory.dmp	upx
behavioral2/memory/1996-45-0x0000000013140000-0x00000000131FD000-memory.dmp	upx
behavioral2/memory/1996-49-0x0000000013140000-0x00000000131FD000-memory.dmp	upx
behavioral2/memory/1996-48-0x0000000013140000-0x00000000131FD000-memory.dmp	upx
behavioral2/memory/1996-47-0x0000000013140000-0x00000000131FD000-memory.dmp	upx

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

Processes:

explorer.exeexplorer.exenotepad.exesvrdarkcry.exeESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exesvrdarkcry.exenotepad.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svrdarkcry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svrdarkcry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

NSIS installer 2 IoCs

installer

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe	nsis_installer_1
C:\Users\Admin\AppData\Local\Temp\ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe	nsis_installer_2

Checks processor information in registry 2 TTPs 8 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

Processes:

svrdarkcry.exeexplorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svrdarkcry.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	svrdarkcry.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	svrdarkcry.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	explorer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	svrdarkcry.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

Processes:

svrdarkcry.exeexplorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	svrdarkcry.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

svrdarkcry.exeexplorer.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1220	svrdarkcry.exe
Token: SeSecurityPrivilege	1220	svrdarkcry.exe
Token: SeTakeOwnershipPrivilege	1220	svrdarkcry.exe
Token: SeLoadDriverPrivilege	1220	svrdarkcry.exe
Token: SeSystemProfilePrivilege	1220	svrdarkcry.exe
Token: SeSystemtimePrivilege	1220	svrdarkcry.exe
Token: SeProfSingleProcessPrivilege	1220	svrdarkcry.exe
Token: SeIncBasePriorityPrivilege	1220	svrdarkcry.exe
Token: SeCreatePagefilePrivilege	1220	svrdarkcry.exe
Token: SeBackupPrivilege	1220	svrdarkcry.exe
Token: SeRestorePrivilege	1220	svrdarkcry.exe
Token: SeShutdownPrivilege	1220	svrdarkcry.exe
Token: SeDebugPrivilege	1220	svrdarkcry.exe
Token: SeSystemEnvironmentPrivilege	1220	svrdarkcry.exe
Token: SeChangeNotifyPrivilege	1220	svrdarkcry.exe
Token: SeRemoteShutdownPrivilege	1220	svrdarkcry.exe
Token: SeUndockPrivilege	1220	svrdarkcry.exe
Token: SeManageVolumePrivilege	1220	svrdarkcry.exe
Token: SeImpersonatePrivilege	1220	svrdarkcry.exe
Token: SeCreateGlobalPrivilege	1220	svrdarkcry.exe
Token: 33	1220	svrdarkcry.exe
Token: 34	1220	svrdarkcry.exe
Token: 35	1220	svrdarkcry.exe
Token: 36	1220	svrdarkcry.exe
Token: SeIncreaseQuotaPrivilege	1996	explorer.exe
Token: SeSecurityPrivilege	1996	explorer.exe
Token: SeTakeOwnershipPrivilege	1996	explorer.exe
Token: SeLoadDriverPrivilege	1996	explorer.exe
Token: SeSystemProfilePrivilege	1996	explorer.exe
Token: SeSystemtimePrivilege	1996	explorer.exe
Token: SeProfSingleProcessPrivilege	1996	explorer.exe
Token: SeIncBasePriorityPrivilege	1996	explorer.exe
Token: SeCreatePagefilePrivilege	1996	explorer.exe
Token: SeBackupPrivilege	1996	explorer.exe
Token: SeRestorePrivilege	1996	explorer.exe
Token: SeShutdownPrivilege	1996	explorer.exe
Token: SeDebugPrivilege	1996	explorer.exe
Token: SeSystemEnvironmentPrivilege	1996	explorer.exe
Token: SeChangeNotifyPrivilege	1996	explorer.exe
Token: SeRemoteShutdownPrivilege	1996	explorer.exe
Token: SeUndockPrivilege	1996	explorer.exe
Token: SeManageVolumePrivilege	1996	explorer.exe
Token: SeImpersonatePrivilege	1996	explorer.exe
Token: SeCreateGlobalPrivilege	1996	explorer.exe
Token: 33	1996	explorer.exe
Token: 34	1996	explorer.exe
Token: 35	1996	explorer.exe
Token: 36	1996	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

explorer.exe

pid process

1996 explorer.exe

pid	process
1996	explorer.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

8ecb60530662248b182dcf49bd700911_JaffaCakes118.exesvrdarkcry.exesvrdarkcry.exeexplorer.exeexplorer.exe

description	pid	process	target process
PID 1168 wrote to memory of 1560	1168	8ecb60530662248b182dcf49bd700911_JaffaCakes118.exe	svrdarkcry.exe
PID 1168 wrote to memory of 1560	1168	8ecb60530662248b182dcf49bd700911_JaffaCakes118.exe	svrdarkcry.exe
PID 1168 wrote to memory of 1560	1168	8ecb60530662248b182dcf49bd700911_JaffaCakes118.exe	svrdarkcry.exe
PID 1168 wrote to memory of 920	1168	8ecb60530662248b182dcf49bd700911_JaffaCakes118.exe	ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe
PID 1168 wrote to memory of 920	1168	8ecb60530662248b182dcf49bd700911_JaffaCakes118.exe	ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe
PID 1168 wrote to memory of 920	1168	8ecb60530662248b182dcf49bd700911_JaffaCakes118.exe	ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe
PID 1560 wrote to memory of 1220	1560	svrdarkcry.exe	svrdarkcry.exe
PID 1560 wrote to memory of 1220	1560	svrdarkcry.exe	svrdarkcry.exe
PID 1560 wrote to memory of 1220	1560	svrdarkcry.exe	svrdarkcry.exe
PID 1560 wrote to memory of 1220	1560	svrdarkcry.exe	svrdarkcry.exe
PID 1560 wrote to memory of 1220	1560	svrdarkcry.exe	svrdarkcry.exe
PID 1560 wrote to memory of 1220	1560	svrdarkcry.exe	svrdarkcry.exe
PID 1560 wrote to memory of 1220	1560	svrdarkcry.exe	svrdarkcry.exe
PID 1560 wrote to memory of 1220	1560	svrdarkcry.exe	svrdarkcry.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4860	1220	svrdarkcry.exe	notepad.exe
PID 1220 wrote to memory of 4608	1220	svrdarkcry.exe	explorer.exe
PID 1220 wrote to memory of 4608	1220	svrdarkcry.exe	explorer.exe
PID 1220 wrote to memory of 4608	1220	svrdarkcry.exe	explorer.exe
PID 1220 wrote to memory of 4608	1220	svrdarkcry.exe	explorer.exe
PID 1220 wrote to memory of 4608	1220	svrdarkcry.exe	explorer.exe
PID 4608 wrote to memory of 1996	4608	explorer.exe	explorer.exe
PID 4608 wrote to memory of 1996	4608	explorer.exe	explorer.exe
PID 4608 wrote to memory of 1996	4608	explorer.exe	explorer.exe
PID 4608 wrote to memory of 1996	4608	explorer.exe	explorer.exe
PID 4608 wrote to memory of 1996	4608	explorer.exe	explorer.exe
PID 4608 wrote to memory of 1996	4608	explorer.exe	explorer.exe
PID 4608 wrote to memory of 1996	4608	explorer.exe	explorer.exe
PID 4608 wrote to memory of 1996	4608	explorer.exe	explorer.exe
PID 1996 wrote to memory of 100	1996	explorer.exe	notepad.exe
PID 1996 wrote to memory of 100	1996	explorer.exe	notepad.exe
PID 1996 wrote to memory of 100	1996	explorer.exe	notepad.exe
PID 1996 wrote to memory of 100	1996	explorer.exe	notepad.exe
PID 1996 wrote to memory of 100	1996	explorer.exe	notepad.exe
PID 1996 wrote to memory of 100	1996	explorer.exe	notepad.exe
PID 1996 wrote to memory of 100	1996	explorer.exe	notepad.exe
PID 1996 wrote to memory of 100	1996	explorer.exe	notepad.exe
PID 1996 wrote to memory of 100	1996	explorer.exe	notepad.exe
PID 1996 wrote to memory of 100	1996	explorer.exe	notepad.exe
PID 1996 wrote to memory of 100	1996	explorer.exe	notepad.exe
PID 1996 wrote to memory of 100	1996	explorer.exe	notepad.exe
PID 1996 wrote to memory of 100	1996	explorer.exe	notepad.exe
PID 1996 wrote to memory of 100	1996	explorer.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\8ecb60530662248b182dcf49bd700911_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8ecb60530662248b182dcf49bd700911_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1168
- C:\Users\Admin\AppData\Local\Temp\svrdarkcry.exe
  "C:\Users\Admin\AppData\Local\Temp\svrdarkcry.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1560
- - C:\Users\Admin\AppData\Local\Temp\svrdarkcry.exe
    "C:\Users\Admin\AppData\Local\Temp\svrdarkcry.exe"
    3⤵
    - Modifies WinLogon for persistence
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1220
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:4860
  - - C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4608
    - - C:\Windows\SysWOW64\explorer.exe
        
        "C:\Windows\SysWOW64\explorer.exe"
        5⤵
        Modifies firewall policy service
        Modifies security service
        Windows security bypass
        Disables RegEdit via registry modification
        Checks BIOS information in registry
        System Location Discovery: System Language Discovery
        Checks processor information in registry
        Enumerates system info in registry
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1996
      - C:\Windows\SysWOW64\notepad.exe
        
        C:\Windows\SysWOW64\notepad.exe
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:100
- C:\Users\Admin\AppData\Local\Temp\ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe
  "C:\Users\Admin\AppData\Local\Temp\ESET Antivirus License Finder (MiNODLogin) 3.7.0.2.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:920

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

T1543.003

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

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

4

System Information Discovery

5

System Location Discovery

T1614

System Language Discovery