General

  • Target

    2024092083531f5d7960cfbe4fa2add4f07c705bvirlock

  • Size

    564KB

  • Sample

    240920-qwk7nszanm

  • MD5

    83531f5d7960cfbe4fa2add4f07c705b

  • SHA1

    1329622e8c7cad14ac14ac01e30e5572f6288ace

  • SHA256

    05d1564ff5f3869b5eaf8ee5b240bbe0ae139b5db42fb5f41026acd0bd6e9d3b

  • SHA512

    cfaa62283932481b45482ca330881276568268ad95554c28e00820d07b548a5e9141b53fd92662a6bd4baecf9b46b175a445d52cf027afa4b185f850afd43113

  • SSDEEP

    12288:vpc2txf8sKyztmVtnSjrDcWexakQb1QnN2wFMy9uo8oWF9eVfNZD61m/bbwlU1Lj:R3txxKyz0VBSjfDrZ/MYF9eVfNZD61mf

Malware Config

Targets

    • Target

      2024092083531f5d7960cfbe4fa2add4f07c705bvirlock

    • Size

      564KB

    • MD5

      83531f5d7960cfbe4fa2add4f07c705b

    • SHA1

      1329622e8c7cad14ac14ac01e30e5572f6288ace

    • SHA256

      05d1564ff5f3869b5eaf8ee5b240bbe0ae139b5db42fb5f41026acd0bd6e9d3b

    • SHA512

      cfaa62283932481b45482ca330881276568268ad95554c28e00820d07b548a5e9141b53fd92662a6bd4baecf9b46b175a445d52cf027afa4b185f850afd43113

    • SSDEEP

      12288:vpc2txf8sKyztmVtnSjrDcWexakQb1QnN2wFMy9uo8oWF9eVfNZD61m/bbwlU1Lj:R3txxKyz0VBSjfDrZ/MYF9eVfNZD61mf

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (84) 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