General

  • Target

    20240824a12fdb18d3868a6b3c58d2fdd11bc5cevirlock

  • Size

    195KB

  • Sample

    240824-m9z17sxbng

  • MD5

    a12fdb18d3868a6b3c58d2fdd11bc5ce

  • SHA1

    f3d90972b72c95b438a9ceb08717e63ffb4617d1

  • SHA256

    de0e001e8d17580cf7cc10b8b46abb574623077871384cbc3744bf02bfeb4bcc

  • SHA512

    eea56efcde21887c39fcf7efeb6146bbb8a65e190682eec3eb9098896780a85260ca0f9fd9bc220eccd2534838238dce8003acf95d3121ac2af8f44445facd37

  • SSDEEP

    3072:/y3uVDAnoRMxAxDR896OEUD/gqyfwkS2flMVlbBgyWvq7l2aDvu2TlQC81yXX8:/e3wK/T4bnflCgyeAl2aKK81cM

Malware Config

Targets

    • Target

      20240824a12fdb18d3868a6b3c58d2fdd11bc5cevirlock

    • Size

      195KB

    • MD5

      a12fdb18d3868a6b3c58d2fdd11bc5ce

    • SHA1

      f3d90972b72c95b438a9ceb08717e63ffb4617d1

    • SHA256

      de0e001e8d17580cf7cc10b8b46abb574623077871384cbc3744bf02bfeb4bcc

    • SHA512

      eea56efcde21887c39fcf7efeb6146bbb8a65e190682eec3eb9098896780a85260ca0f9fd9bc220eccd2534838238dce8003acf95d3121ac2af8f44445facd37

    • SSDEEP

      3072:/y3uVDAnoRMxAxDR896OEUD/gqyfwkS2flMVlbBgyWvq7l2aDvu2TlQC81yXX8:/e3wK/T4bnflCgyeAl2aKK81cM

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (53) 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.

    • Deletes itself

    • 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