General

  • Target
    Ransomware.Thanos.zip
  • Size 145KB
  • Sample251023-bdws5aeq5y
  • SHA256 cd0f55dd00111251cd580c7e7cc1d17448faf27e4ef39818d75ce330628c7787
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      58bfb9fa8889550d13f42473956dc2a7ec4f3abb18fd3faeaa38089d513c171f
    • Size 82KB
    • SHA256 58bfb9fa8889550d13f42473956dc2a7ec4f3abb18fd3faeaa38089d513c171f
    • MD5 SHA1 SHA512 SSDEEP
    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender Real-time Protection settings

    • Modifies Windows Defender TamperProtection settings

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Disables service(s)

    • Drops startup file

    • Windows security modification

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Modifies WinLogon

    • Target
      5d40615701c48a122e44f831e7c8643d07765629a83b15d090587f469c77693d
    • Size 91KB
    • SHA256 5d40615701c48a122e44f831e7c8643d07765629a83b15d090587f469c77693d
    • MD5 SHA1 SHA512 SSDEEP
    • Renames multiple (60) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Disables service(s)

    • Drops startup file

    • Executes dropped EXE

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Legitimate hosting services abused for malware hosting/C2

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Target
      ae66e009e16f0fad3b70ad20801f48f2edb904fa5341a89e126a26fd3fc80f75
    • Size 100KB
    • SHA256 ae66e009e16f0fad3b70ad20801f48f2edb904fa5341a89e126a26fd3fc80f75
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      c460fc0d4fdaf5c68623e18de106f1c3601d7bd6ba80ddad86c10fd6ea123850
    • Size 87KB
    • SHA256 c460fc0d4fdaf5c68623e18de106f1c3601d7bd6ba80ddad86c10fd6ea123850
    • MD5 SHA1 SHA512 SSDEEP
    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender Real-time Protection settings

    • Modifies Windows Defender TamperProtection settings

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (56) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Disables service(s)

    • Drops startup file

    • Executes dropped EXE

    • Windows security modification

    • Legitimate hosting services abused for malware hosting/C2

    • Modifies WinLogon

    • Network Service Discovery

      Attempt to gather information on host's network.

MITRE ATT&CK Enterprise v16

Tasks