General

  • Target

    2024-04-26_13e69750baccbc80d510f03f70acb826_virlock

  • Size

    286KB

  • Sample

    240426-nhwedafd45

  • MD5

    13e69750baccbc80d510f03f70acb826

  • SHA1

    5fb6608eb026f7bc089597eedcc95fd97aa39dfc

  • SHA256

    7d7e85888a6b2b29c0527c2472898eda3c5b5914f688a7f5baede98ba39d2131

  • SHA512

    3e3b09394d80ef60e398272419e423baafd24c49159d1bb08b222ecc88343cd1ea7dd7d19cac74adf210005cdee6126608a23b28c658a8eda9d5c030a5399dba

  • SSDEEP

    6144:o+kwYjKMagXuzdiYtXBlTnEhsRrCfdEhGScLF/8v8/PUZWUlLXHy1C:odKYXuzdiYtxNnEhQrCfdEhGScLF/8vD

Malware Config

Targets

    • Target

      2024-04-26_13e69750baccbc80d510f03f70acb826_virlock

    • Size

      286KB

    • MD5

      13e69750baccbc80d510f03f70acb826

    • SHA1

      5fb6608eb026f7bc089597eedcc95fd97aa39dfc

    • SHA256

      7d7e85888a6b2b29c0527c2472898eda3c5b5914f688a7f5baede98ba39d2131

    • SHA512

      3e3b09394d80ef60e398272419e423baafd24c49159d1bb08b222ecc88343cd1ea7dd7d19cac74adf210005cdee6126608a23b28c658a8eda9d5c030a5399dba

    • SSDEEP

      6144:o+kwYjKMagXuzdiYtXBlTnEhsRrCfdEhGScLF/8v8/PUZWUlLXHy1C:odKYXuzdiYtxNnEhQrCfdEhGScLF/8vD

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (56) 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