General

  • Target

    2024-10-06_22143b7268476893a75b2d342ddfca9b_virlock

  • Size

    809KB

  • Sample

    241006-klj9qszhne

  • MD5

    22143b7268476893a75b2d342ddfca9b

  • SHA1

    472b26417c0162e3efbea25be73151097d87a0cb

  • SHA256

    0a56248b47da533dcc28a26e5712148e051acb56d38bb7c4b97890e64cfb27d4

  • SHA512

    0616bd3b3e04e0f79da19951e82f96ab352dd389b4bcd52d1cb95c0139afcbeeae8dd98fc368a911a88919f17c855609058725a3a5513c825263d1a6f58495a8

  • SSDEEP

    24576:vuU5Y00slPy0+yLmDuCnxs/wv6Shhlrq:GU5lXCxsK/h7

Malware Config

Targets

    • Target

      2024-10-06_22143b7268476893a75b2d342ddfca9b_virlock

    • Size

      809KB

    • MD5

      22143b7268476893a75b2d342ddfca9b

    • SHA1

      472b26417c0162e3efbea25be73151097d87a0cb

    • SHA256

      0a56248b47da533dcc28a26e5712148e051acb56d38bb7c4b97890e64cfb27d4

    • SHA512

      0616bd3b3e04e0f79da19951e82f96ab352dd389b4bcd52d1cb95c0139afcbeeae8dd98fc368a911a88919f17c855609058725a3a5513c825263d1a6f58495a8

    • SSDEEP

      24576:vuU5Y00slPy0+yLmDuCnxs/wv6Shhlrq:GU5lXCxsK/h7

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (59) 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks