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General

  • Target

    2024-03-19_d6506bf5033fc4c977460e6f34551b90_virlock

  • Size

    137KB

  • Sample

    240319-mjhz1aae3v

  • MD5

    d6506bf5033fc4c977460e6f34551b90

  • SHA1

    9836ae9be7fb94a0239059cbab25209656a315c0

  • SHA256

    0a069e20364cafe9589c1a79d4ab622922ac41fec0e52edc1a626c92a14a8fdb

  • SHA512

    9a33f9e19e8c499ef874e44359f69ca7c425b4cf28e1872a96a2b334d8f3c434cf6a69c9b2c27cf944045eb7e42621e4402f93614a0a95760ca11d24c3c86a0a

  • SSDEEP

    1536:UcC0o5CalHFg/sWTyCoc/qYB6pV+nJLE3s/Cgfb6JJOivwAOPloMwS8eGLt3aIYd:Y0o5Ca9C/sWuBxue3s/WJDiOD3lYx3PX

Malware Config

Targets

    • Target

      2024-03-19_d6506bf5033fc4c977460e6f34551b90_virlock

    • Size

      137KB

    • MD5

      d6506bf5033fc4c977460e6f34551b90

    • SHA1

      9836ae9be7fb94a0239059cbab25209656a315c0

    • SHA256

      0a069e20364cafe9589c1a79d4ab622922ac41fec0e52edc1a626c92a14a8fdb

    • SHA512

      9a33f9e19e8c499ef874e44359f69ca7c425b4cf28e1872a96a2b334d8f3c434cf6a69c9b2c27cf944045eb7e42621e4402f93614a0a95760ca11d24c3c86a0a

    • SSDEEP

      1536:UcC0o5CalHFg/sWTyCoc/qYB6pV+nJLE3s/Cgfb6JJOivwAOPloMwS8eGLt3aIYd:Y0o5Ca9C/sWuBxue3s/WJDiOD3lYx3PX

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (83) 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

MITRE ATT&CK Enterprise v15

Tasks