General

  • Target

    2024-11-15_aba8927de516e3527a558f80ee95473e_virlock

  • Size

    645KB

  • Sample

    241115-qnyssstnfz

  • MD5

    aba8927de516e3527a558f80ee95473e

  • SHA1

    9d4b3cfcf44fa88b9fb35e20568c5694cf9ec7c7

  • SHA256

    6e72f668fcfd5f1ebd715349d3668381983a075e836675cc45dac02c86079453

  • SHA512

    32e1ada3c5f23abb0697557509392537daeb290a3b76f6977f21e496afa692b93ebc841237074ca92db1b55dc483935feface20d3687d5bd3204302fbc019110

  • SSDEEP

    6144:UrmL6ApaFmH9yd6DaQWc/CKUjTK+9KpOWv/uREr+VBFf0JxNL/Z4xS6WWjN22cow:UKX7H9wkaQB/OT39KpdPr+3GTgIDsrE

Malware Config

Targets

    • Target

      2024-11-15_aba8927de516e3527a558f80ee95473e_virlock

    • Size

      645KB

    • MD5

      aba8927de516e3527a558f80ee95473e

    • SHA1

      9d4b3cfcf44fa88b9fb35e20568c5694cf9ec7c7

    • SHA256

      6e72f668fcfd5f1ebd715349d3668381983a075e836675cc45dac02c86079453

    • SHA512

      32e1ada3c5f23abb0697557509392537daeb290a3b76f6977f21e496afa692b93ebc841237074ca92db1b55dc483935feface20d3687d5bd3204302fbc019110

    • SSDEEP

      6144:UrmL6ApaFmH9yd6DaQWc/CKUjTK+9KpOWv/uREr+VBFf0JxNL/Z4xS6WWjN22cow:UKX7H9wkaQB/OT39KpdPr+3GTgIDsrE

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (57) 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