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General

  • Target

    823a794bd905835c9668fd14ea30ff3f4dc316b507c0fd81bcadcd0952652d40

  • Size

    800KB

  • Sample

    230506-z1qsdsgh6x

  • MD5

    49fe6c0a3bd14f3c5a6c529550e69f30

  • SHA1

    d6340b63483e758a09799a0932094723193fe619

  • SHA256

    823a794bd905835c9668fd14ea30ff3f4dc316b507c0fd81bcadcd0952652d40

  • SHA512

    cfb9183d950fceea890a76f68a5a3cdfc9e90039c508237f0d1d0489318a58e33e447a5bf2d26ff229d43f6f1f5c0409e291ea6d8295f4b306e8a7caa2743dad

  • SSDEEP

    24576:BXefWDcV1tFopC/jDwyCc9t895AbDNzPa:BI8+2U7kyZrxP

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .qopz

  • offline_id

    dp2XHHJytO0BDSHTEAkoGB97DSSLD0rheNyRBit1

  • 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-KOKbb3hd7U 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: 0702Sdeb

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.7

Botnet

31c7719b5ee962fbde376b75e771360d

C2

https://steamcommunity.com/profiles/76561199501059503

https://t.me/mastersbots

Attributes
  • profile_id_v2

    31c7719b5ee962fbde376b75e771360d

  • user_agent

    Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/112.0

Targets

    • Target

      823a794bd905835c9668fd14ea30ff3f4dc316b507c0fd81bcadcd0952652d40

    • Size

      800KB

    • MD5

      49fe6c0a3bd14f3c5a6c529550e69f30

    • SHA1

      d6340b63483e758a09799a0932094723193fe619

    • SHA256

      823a794bd905835c9668fd14ea30ff3f4dc316b507c0fd81bcadcd0952652d40

    • SHA512

      cfb9183d950fceea890a76f68a5a3cdfc9e90039c508237f0d1d0489318a58e33e447a5bf2d26ff229d43f6f1f5c0409e291ea6d8295f4b306e8a7caa2743dad

    • SSDEEP

      24576:BXefWDcV1tFopC/jDwyCc9t895AbDNzPa:BI8+2U7kyZrxP

    • 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