General

  • Target

    1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7

  • Size

    715KB

  • Sample

    230902-feznmabd26

  • MD5

    dd64dc7ae2e57753329f2481e12607ae

  • SHA1

    437ae73f73d69f8648f40b7a074d8f27c962c5a3

  • SHA256

    1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7

  • SHA512

    ec570a16f3496ce9a4a23972ce7f5dae3cc64820fe0454216d1b48518247ff1c48f1b80a55c8d9201dcc4807d41eb0a4cabb4c5211420e721b71ffa9482791af

  • SSDEEP

    12288:580Eokp2+hG/SP8ToU9+P4DByanoGkgUcBs9w9s+6r8gCg8C+3:58dVpToGxU9+P4DYan03cew91ggL

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .nzqw

  • offline_id

    fe7vbai057v1PzegcJrFdG7DjT3mL5gUtMQkLrt1

  • 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-E4b0Td2MBH 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: 0769JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.4

Botnet

25f5344bfcb62e75b7946c3a681aec54

C2

https://t.me/vogogor

https://steamcommunity.com/profiles/76561199545993403

Attributes
  • profile_id_v2

    25f5344bfcb62e75b7946c3a681aec54

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.2.13 (KHTML, like Gecko) Version/16.5.2 Safari/605.2.13

Targets

    • Target

      1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7

    • Size

      715KB

    • MD5

      dd64dc7ae2e57753329f2481e12607ae

    • SHA1

      437ae73f73d69f8648f40b7a074d8f27c962c5a3

    • SHA256

      1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7

    • SHA512

      ec570a16f3496ce9a4a23972ce7f5dae3cc64820fe0454216d1b48518247ff1c48f1b80a55c8d9201dcc4807d41eb0a4cabb4c5211420e721b71ffa9482791af

    • SSDEEP

      12288:580Eokp2+hG/SP8ToU9+P4DByanoGkgUcBs9w9s+6r8gCg8C+3:58dVpToGxU9+P4DYan03cew91ggL

    • 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