General

  • Target

    37474b43218065ba37a69d5a8e106d2c180230deea071c317ece20b52c5ca6aa

  • Size

    802KB

  • Sample

    230922-bt3llsde92

  • MD5

    48542bf8e6ad07db434ee189bc371f5a

  • SHA1

    5c0438282b3428ba694344615f85446688391556

  • SHA256

    37474b43218065ba37a69d5a8e106d2c180230deea071c317ece20b52c5ca6aa

  • SHA512

    9514c30488d32ad44589a4be10c5c74b86914473cf5b4d9388cd4f94c13c358c61c1bafcf7090a68152616a35998c6af150435925be13595f94d1d86e1ed9a67

  • SSDEEP

    12288:OiIUYx14646GBL/OMQZ9p6tSQaG5YyyywAojVt/5JunbnvWCxOyQjoH8:9f764f1aG5hyyGj7PuiFyQ0H8

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .wwpl

  • offline_id

    LtYnlJvK0hICyOCeum6Tv4pbia9jcIGHVgA3Xht1

  • 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-xoUXGr6cqT 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: 0786JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.7

Botnet

5c0b4a12d6c03dd98ed431d3eded2169

C2

https://steamcommunity.com/profiles/76561199553369541

https://t.me/dastanatg

Attributes
  • profile_id_v2

    5c0b4a12d6c03dd98ed431d3eded2169

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_8) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.7 Safari/605.1.75

Targets

    • Target

      37474b43218065ba37a69d5a8e106d2c180230deea071c317ece20b52c5ca6aa

    • Size

      802KB

    • MD5

      48542bf8e6ad07db434ee189bc371f5a

    • SHA1

      5c0438282b3428ba694344615f85446688391556

    • SHA256

      37474b43218065ba37a69d5a8e106d2c180230deea071c317ece20b52c5ca6aa

    • SHA512

      9514c30488d32ad44589a4be10c5c74b86914473cf5b4d9388cd4f94c13c358c61c1bafcf7090a68152616a35998c6af150435925be13595f94d1d86e1ed9a67

    • SSDEEP

      12288:OiIUYx14646GBL/OMQZ9p6tSQaG5YyyywAojVt/5JunbnvWCxOyQjoH8:9f764f1aG5hyyGj7PuiFyQ0H8

    • 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

    • 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 v15

Tasks