General

  • Target

    2024-11-04_04da11228e13fec763525702a678c9a7_virlock

  • Size

    120KB

  • Sample

    241104-cvtkrs1glq

  • MD5

    04da11228e13fec763525702a678c9a7

  • SHA1

    bf803655a7aab77095514cb82ace10ccb51629bd

  • SHA256

    9effcfe3a73c8d77c28c21fa74f4524a3d5c6ae0f3d6ae1acc1b85e8f2c82751

  • SHA512

    394bd7521cfe8b077b5e3adb2f330567967caba5ffdc9dbbd4b08921a05788a5e73f4fc4cbd7edbe073435d5d6dafbeab33849c0be97230b14676bc2c55dbd5d

  • SSDEEP

    3072:PvoT+Z7wzjJ3/CBoHwH0J6DPSstUNxBxKSd:XoKZ72PjwHtast4kSd

Malware Config

Targets

    • Target

      2024-11-04_04da11228e13fec763525702a678c9a7_virlock

    • Size

      120KB

    • MD5

      04da11228e13fec763525702a678c9a7

    • SHA1

      bf803655a7aab77095514cb82ace10ccb51629bd

    • SHA256

      9effcfe3a73c8d77c28c21fa74f4524a3d5c6ae0f3d6ae1acc1b85e8f2c82751

    • SHA512

      394bd7521cfe8b077b5e3adb2f330567967caba5ffdc9dbbd4b08921a05788a5e73f4fc4cbd7edbe073435d5d6dafbeab33849c0be97230b14676bc2c55dbd5d

    • SSDEEP

      3072:PvoT+Z7wzjJ3/CBoHwH0J6DPSstUNxBxKSd:XoKZ72PjwHtast4kSd

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (74) 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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks