General

  • Target

    2024-11-06_910cd280fcec9516f5c33da23ccdf143_virlock

  • Size

    138KB

  • Sample

    241106-c3s9zawkam

  • MD5

    910cd280fcec9516f5c33da23ccdf143

  • SHA1

    16bed4624f98883028b95e2a3a75371621755505

  • SHA256

    259d6e7fd73e20fe1e178a6c3adbabf2a64361336a5849c9a5cacb89dd025c4f

  • SHA512

    68ba1e2a4fc99843e9dca08aec1e13bce3137c32e83a2fc2a6637a57fff82b57614a8941c3dfb9ef92c0df7c5dfd6ff48445575bb4739112aad880a915313aa4

  • SSDEEP

    1536:yCuG+GTPOi6BqsOTM9caPmv/pjrPGhuDg8s3x9vKAH7SFhGgQtJaNZvkVPLk6VSI:nhYIaajrovKAH7uhoJaDvMLfS+1X

Malware Config

Targets

    • Target

      2024-11-06_910cd280fcec9516f5c33da23ccdf143_virlock

    • Size

      138KB

    • MD5

      910cd280fcec9516f5c33da23ccdf143

    • SHA1

      16bed4624f98883028b95e2a3a75371621755505

    • SHA256

      259d6e7fd73e20fe1e178a6c3adbabf2a64361336a5849c9a5cacb89dd025c4f

    • SHA512

      68ba1e2a4fc99843e9dca08aec1e13bce3137c32e83a2fc2a6637a57fff82b57614a8941c3dfb9ef92c0df7c5dfd6ff48445575bb4739112aad880a915313aa4

    • SSDEEP

      1536:yCuG+GTPOi6BqsOTM9caPmv/pjrPGhuDg8s3x9vKAH7SFhGgQtJaNZvkVPLk6VSI:nhYIaajrovKAH7uhoJaDvMLfS+1X

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (76) files with added filename extension

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks