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General

  • Target

    ANTIVM.exe

  • Size

    24.5MB

  • Sample

    250324-yts4hayls6

  • MD5

    42bd4663c4ab6d6d0a4ea56e2eb5546b

  • SHA1

    c4604ca11bf6abb57faba8d1bae23bfa6d68bdda

  • SHA256

    0dcf55a9706777f62be8d1609c8d77cd6bbd3c836fbf5e9848135b691d2136d3

  • SHA512

    a38fc92240cb8194e8038bd58a4ac6b40efe7acb0ef66c042756d7e560d9acf95306012047cb647477789c11ac08428e834dbdc7295cad6225e494eb3c317c24

  • SSDEEP

    393216:9ttthO8Ik3f7EKMAYtl1Uoy5nwIJtEmYQm6b6Ni/2AAS8hhKREPy/pWu4kRimrbw:7Y08htl1Dinw2XeNi/erTy/pWWU

Malware Config

Targets

    • Target

      ANTIVM.exe

    • Size

      24.5MB

    • MD5

      42bd4663c4ab6d6d0a4ea56e2eb5546b

    • SHA1

      c4604ca11bf6abb57faba8d1bae23bfa6d68bdda

    • SHA256

      0dcf55a9706777f62be8d1609c8d77cd6bbd3c836fbf5e9848135b691d2136d3

    • SHA512

      a38fc92240cb8194e8038bd58a4ac6b40efe7acb0ef66c042756d7e560d9acf95306012047cb647477789c11ac08428e834dbdc7295cad6225e494eb3c317c24

    • SSDEEP

      393216:9ttthO8Ik3f7EKMAYtl1Uoy5nwIJtEmYQm6b6Ni/2AAS8hhKREPy/pWu4kRimrbw:7Y08htl1Dinw2XeNi/erTy/pWWU

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Disables Task Manager via registry modification

    • Possible privilege escalation attempt

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Enumerates connected drives

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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Enumerates processes with tasklist

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks