General

  • Target

    NmI5NGQx.exe

  • Size

    822KB

  • Sample

    230601-yrdwssgf9y

  • MD5

    e65780b1185a83adc7e60b7992a2225c

  • SHA1

    b16f06dc572176f07e2db83dc3fb37dc6446ee33

  • SHA256

    7d0485e8348a7c45a4124bb3c458f304eb0a573f0adc7b507286348138ae02fc

  • SHA512

    44a9ae127aa21c57def31fa9053d11986b73545e2f41647e40fc44cade6259dbaa4d3bba6791d7f70e853faeb8a870ad704f4d2961485d5ba23c35b6c513c70e

  • SSDEEP

    12288:fYBRnFFRwGT4IHQSVco2pfklukv8cAmuRUURUJ3Nrg5CnM1Ulh2Bcjc:uJ6VIHxSxs9v9A56wULc5uducj

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .xash

  • offline_id

    uK3VnHYy6oibGbO8t2PDOMcT40gQoh5oUUCe2Lt1

  • 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-otP8Wlz4eh 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: 0707JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.1

Botnet

77a63e71a10ee1d81a28b5c866b75922

C2

https://steamcommunity.com/profiles/76561199510444991

https://t.me/task4manager

Attributes
  • profile_id_v2

    77a63e71a10ee1d81a28b5c866b75922

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36 Edg/112.0.1722.34

Targets

    • Target

      NmI5NGQx.exe

    • Size

      822KB

    • MD5

      e65780b1185a83adc7e60b7992a2225c

    • SHA1

      b16f06dc572176f07e2db83dc3fb37dc6446ee33

    • SHA256

      7d0485e8348a7c45a4124bb3c458f304eb0a573f0adc7b507286348138ae02fc

    • SHA512

      44a9ae127aa21c57def31fa9053d11986b73545e2f41647e40fc44cade6259dbaa4d3bba6791d7f70e853faeb8a870ad704f4d2961485d5ba23c35b6c513c70e

    • SSDEEP

      12288:fYBRnFFRwGT4IHQSVco2pfklukv8cAmuRUURUJ3Nrg5CnM1Ulh2Bcjc:uJ6VIHxSxs9v9A56wULc5uducj

    • 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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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