General

  • Target

    2024-06-12_46fd19475578d5f6fe7bf048530e97e6_virlock

  • Size

    657KB

  • Sample

    240612-vg29vswdnn

  • MD5

    46fd19475578d5f6fe7bf048530e97e6

  • SHA1

    c1f7f68cc5fa9c959437185136d6728209957eeb

  • SHA256

    49e1c50f1cfdcb8959f99ba41b93d0a316847125c6b1e829dd30d5a98b4d656e

  • SHA512

    dc783e6b23095488a4eae5988e94c79efcb68f566d6f46bddae2d8cb58d2290f5fdadf5507845239950aa96e845a31d39a6cfb66c49d1a885c4b5a1ddd49214f

  • SSDEEP

    12288:VP4TfEhKezjeiWraFk8/hYMjGlC8/DBqDk3oPa+MPqR+0y:mJezhGaFk8/6bwDk3oi+KqR+0y

Malware Config

Targets

    • Target

      2024-06-12_46fd19475578d5f6fe7bf048530e97e6_virlock

    • Size

      657KB

    • MD5

      46fd19475578d5f6fe7bf048530e97e6

    • SHA1

      c1f7f68cc5fa9c959437185136d6728209957eeb

    • SHA256

      49e1c50f1cfdcb8959f99ba41b93d0a316847125c6b1e829dd30d5a98b4d656e

    • SHA512

      dc783e6b23095488a4eae5988e94c79efcb68f566d6f46bddae2d8cb58d2290f5fdadf5507845239950aa96e845a31d39a6cfb66c49d1a885c4b5a1ddd49214f

    • SSDEEP

      12288:VP4TfEhKezjeiWraFk8/hYMjGlC8/DBqDk3oPa+MPqR+0y:mJezhGaFk8/6bwDk3oi+KqR+0y

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (58) 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