General

  • Target

    2024-11-06_71766d2b85aa62591e714962aeaa47c4_virlock

  • Size

    2.3MB

  • Sample

    241106-dqkmqswmep

  • MD5

    71766d2b85aa62591e714962aeaa47c4

  • SHA1

    dccd3609d375eda4cead7b75f7de4b5b246707cf

  • SHA256

    7b59b9179a11cbbccdca91c6601ba51ebf843af6c7d0f3693cbd4f96dc097e0e

  • SHA512

    cccd3e3678aa315750cbdf5abe009405144b64685c2824fb8abbe95e6d1c87255ece077a49406a68d59d35b1872a936f92403e57249049fb6ed5047f20ecf8ad

  • SSDEEP

    49152:bjvutG3Pcvykn1/Mi7wnNvXp6TMJM0QmZ:bjvu8cvy01hCv7NQm

Malware Config

Targets

    • Target

      2024-11-06_71766d2b85aa62591e714962aeaa47c4_virlock

    • Size

      2.3MB

    • MD5

      71766d2b85aa62591e714962aeaa47c4

    • SHA1

      dccd3609d375eda4cead7b75f7de4b5b246707cf

    • SHA256

      7b59b9179a11cbbccdca91c6601ba51ebf843af6c7d0f3693cbd4f96dc097e0e

    • SHA512

      cccd3e3678aa315750cbdf5abe009405144b64685c2824fb8abbe95e6d1c87255ece077a49406a68d59d35b1872a936f92403e57249049fb6ed5047f20ecf8ad

    • SSDEEP

      49152:bjvutG3Pcvykn1/Mi7wnNvXp6TMJM0QmZ:bjvu8cvy01hCv7NQm

    • Modifies WinLogon for persistence

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Renames multiple (56) 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.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks