General

  • Target

    01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7

  • Size

    794KB

  • Sample

    230513-3j5rrscc8v

  • MD5

    b822f2e780062f772c043f12f78a52ff

  • SHA1

    f2c97efa67086b9312987b6d5d360f3588e72c20

  • SHA256

    01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7

  • SHA512

    771886eff4ccbc79654db9be4ba0abc176c853f47669617ff3609f31a4cefdcef40cc0aab7f9696fe7a313908b75c16172eeeed102339619af3af8bd9bf71ffb

  • SSDEEP

    24576:1VLbbL87kghegmklpOhJmhVuOshsiy695:1lZghegmTyOsi7

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test1/get.php

Attributes
  • extension

    .gash

  • offline_id

    gdTA3a9eBPJZlAHc7UhZKxuA2PF57q3j1xsfAkt1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.com/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-pznhigpUwP Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0704JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.8

Botnet

ef32d425b907146eeb9090dbc9455ab1

C2

https://steamcommunity.com/profiles/76561198272578552

https://t.me/libpcre

Attributes
  • profile_id_v2

    ef32d425b907146eeb9090dbc9455ab1

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36 Vivaldi/3.7

Targets

    • Target

      01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7

    • Size

      794KB

    • MD5

      b822f2e780062f772c043f12f78a52ff

    • SHA1

      f2c97efa67086b9312987b6d5d360f3588e72c20

    • SHA256

      01dc1962bc6f5d820d0d93bac9b749c3063ebe6d900b12602fbdf392170ebfa7

    • SHA512

      771886eff4ccbc79654db9be4ba0abc176c853f47669617ff3609f31a4cefdcef40cc0aab7f9696fe7a313908b75c16172eeeed102339619af3af8bd9bf71ffb

    • SSDEEP

      24576:1VLbbL87kghegmklpOhJmhVuOshsiy695:1lZghegmTyOsi7

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks