General

  • Target

    f4735575f3e0d76426f6cf80a17d106ee3bc63490db8804c1aa40b20fd04423e

  • Size

    727KB

  • Sample

    220425-d1cd4sbdb9

  • MD5

    91e0c8b57058285586ee437395f996ff

  • SHA1

    71d0d1f5e427af0f7837b56945e355fadc840c26

  • SHA256

    f4735575f3e0d76426f6cf80a17d106ee3bc63490db8804c1aa40b20fd04423e

  • SHA512

    7c3d6e927d11dbd08a51f629ee787a9d3647fe6279d6e90e0ce37d802751b5e0f614b2fff670dca4dd24bd01842c668c0ebb81d9b2ce9104e009b4006815da8e

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/fhsgtsspen6/get.php

Attributes
  • extension

    .dmay

  • offline_id

    Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1

  • payload_url

    http://zerit.top/dl/build2.exe

    http://fuyt.org/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-FT7BNVbXC9 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: 0458JIjdm

rsa_pubkey.plain

Extracted

Family

vidar

Version

51.8

Botnet

517

C2

https://t.me/mm20220428

https://koyu.space/@ronxik123

Attributes
  • profile_id

    517

Targets

    • Target

      f4735575f3e0d76426f6cf80a17d106ee3bc63490db8804c1aa40b20fd04423e

    • Size

      727KB

    • MD5

      91e0c8b57058285586ee437395f996ff

    • SHA1

      71d0d1f5e427af0f7837b56945e355fadc840c26

    • SHA256

      f4735575f3e0d76426f6cf80a17d106ee3bc63490db8804c1aa40b20fd04423e

    • SHA512

      7c3d6e927d11dbd08a51f629ee787a9d3647fe6279d6e90e0ce37d802751b5e0f614b2fff670dca4dd24bd01842c668c0ebb81d9b2ce9104e009b4006815da8e

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • 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