Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Sharing

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General

  • Target

    9f75db29ddc1b59c65c9dfa7e413d0af21e1be62bda1897119281f086c100b6a

  • Size

    719KB

  • Sample

    240402-ree5rsce6x

  • MD5

    3c957e6d08dab67ea7401102d7cae49f

  • SHA1

    af226aa8273d5c4235b8a7af0835f655d2e46c3c

  • SHA256

    9f75db29ddc1b59c65c9dfa7e413d0af21e1be62bda1897119281f086c100b6a

  • SHA512

    c67aa1a1cab23f1362262d575cb4f25a54d7f95ea26db1c5058e34ca9f43c2890eabb0f5f4b105c837a2d5d9b1686a7700f09ddf9733b7d9c11611ec2a1ec955

  • SSDEEP

    12288:i9yPCDJ318q0+zhRrM3RvgeZrwh9iDgSoeT4M7Btv3QV+clmPk18L:qy28Uh9IIyoeT4M7BhAV+VWw

Score
10/10
djvuvidardiscoverypersistenceransomwarestealer

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .uajs

  • offline_id

    Jx0i3k2ogR5cKxX1evmz0Ex7TUxOUlnbh2dvnIt1

  • payload_url

    http://sdfjhuz.com/dl/build2.exe

    http://sajdfue.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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/df01994dd8d37c2c33469922f8e7155a20240402134014/fd95b0 Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0859PsawqS

rsa_pubkey.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199658817715

https://t.me/sa9ok
Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Targets

    • Target

      9f75db29ddc1b59c65c9dfa7e413d0af21e1be62bda1897119281f086c100b6a

    • Size

      719KB

    • MD5

      3c957e6d08dab67ea7401102d7cae49f

    • SHA1

      af226aa8273d5c4235b8a7af0835f655d2e46c3c

    • SHA256

      9f75db29ddc1b59c65c9dfa7e413d0af21e1be62bda1897119281f086c100b6a

    • SHA512

      c67aa1a1cab23f1362262d575cb4f25a54d7f95ea26db1c5058e34ca9f43c2890eabb0f5f4b105c837a2d5d9b1686a7700f09ddf9733b7d9c11611ec2a1ec955

    • SSDEEP

      12288:i9yPCDJ318q0+zhRrM3RvgeZrwh9iDgSoeT4M7Btv3QV+clmPk18L:qy28Uh9IIyoeT4M7BhAV+VWw

    Score
    10/10
    djvuvidardiscoverypersistenceransomwarestealer

    • Detect Vidar Stealer

      stealer

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

      stealervidar

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Modifies file permissions

      discovery

    • Adds Run key to start application

      persistence

    • 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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks