General

  • Target

    57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f

  • Size

    721KB

  • Sample

    230918-2967vafd23

  • MD5

    617d79d2419f454c4683c36e152d44d3

  • SHA1

    36e7f204f66101ca4dea060fe99e8a9c3082dbd3

  • SHA256

    57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f

  • SHA512

    f04d987b306a41204eb13a03b27aa8db66e14b5517dd0a32358e99f0694acd80973c127356cf7581c9e1c164a2bb336ce35c8291c4bfd2ed8684c7d975f42210

  • SSDEEP

    12288:TnMfU7BDbgbz78hQiu9HmkkSt9GnkabJbL18zivF1g0AhOc5iaJR529U979A:7sU7BvEztxHKTdv+GI0qOgio779A

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

      57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f

    • Size

      721KB

    • MD5

      617d79d2419f454c4683c36e152d44d3

    • SHA1

      36e7f204f66101ca4dea060fe99e8a9c3082dbd3

    • SHA256

      57905311e90c427a68b57b84ac9650f81fd434e9669401135a7907b3c8c8ff4f

    • SHA512

      f04d987b306a41204eb13a03b27aa8db66e14b5517dd0a32358e99f0694acd80973c127356cf7581c9e1c164a2bb336ce35c8291c4bfd2ed8684c7d975f42210

    • SSDEEP

      12288:TnMfU7BDbgbz78hQiu9HmkkSt9GnkabJbL18zivF1g0AhOc5iaJR529U979A:7sU7BvEztxHKTdv+GI0qOgio779A

    • 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

    • 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