General

  • Target

    4d301c57348a4c4efc884c7c5b86b9e67d464dd68eaeb2dfe71f6d1a733b1ecb

  • Size

    725KB

  • Sample

    220423-ah9ecahcd6

  • MD5

    c71d8b20a09e81f252d0cb0c5226dd4e

  • SHA1

    5a63a4137cc0cebf4c2dade29205517e4bd6354d

  • SHA256

    4d301c57348a4c4efc884c7c5b86b9e67d464dd68eaeb2dfe71f6d1a733b1ecb

  • SHA512

    35e5400b89346d5eb600545926b5c32ab7b650478997546cbea1d511910e0aac38cf8cfa3c14696986e9ad695e54f06fc1a01cad2aae2ec7d75bc37ed1e712e8

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test1/get.php

Attributes
  • extension

    .msjd

  • 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: 0455JIjdm

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

      4d301c57348a4c4efc884c7c5b86b9e67d464dd68eaeb2dfe71f6d1a733b1ecb

    • Size

      725KB

    • MD5

      c71d8b20a09e81f252d0cb0c5226dd4e

    • SHA1

      5a63a4137cc0cebf4c2dade29205517e4bd6354d

    • SHA256

      4d301c57348a4c4efc884c7c5b86b9e67d464dd68eaeb2dfe71f6d1a733b1ecb

    • SHA512

      35e5400b89346d5eb600545926b5c32ab7b650478997546cbea1d511910e0aac38cf8cfa3c14696986e9ad695e54f06fc1a01cad2aae2ec7d75bc37ed1e712e8

    • 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