Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Sharing

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General

  • Target

    8774127a9c0ad2c7fbe926450c5f6eaf886003a36f251fbc9371741e19bf12cc

  • Size

    754KB

  • Sample

    240320-bp95wsdb82

  • MD5

    4054ea49b5f8deb5ef92115e8a27c782

  • SHA1

    d3e117328401f366ba1e9768e7fba550df807f17

  • SHA256

    8774127a9c0ad2c7fbe926450c5f6eaf886003a36f251fbc9371741e19bf12cc

  • SHA512

    b917761d16bc7dcd80b62605deb0848c2f4b0bfe1316e9cd9f96ba515ce76b04d530880c149772c38d0ef0db7c71a13bd37172eba4711f4106d43308f1210d1d

  • SSDEEP

    12288:xPkDxmwsYcImXfJOEiJmdXX5OVgNWoblbZ9zQp1Wn8KwJzAVUYIqc8HjyruFwWrm:xPuAXfUEnBX5OVSnD93n8KgYIqc8DR9h

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .vook

  • offline_id

    1eSPzWRaNslCgtjBZfL5pzvovoiaVI4IZSnvAwt1

  • 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/3ed7a617738550b0a00c5aa231c0752020240316170955/d71ce1 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: 0857PsawqS

rsa_pubkey.plain

Targets

    • Target

      8774127a9c0ad2c7fbe926450c5f6eaf886003a36f251fbc9371741e19bf12cc

    • Size

      754KB

    • MD5

      4054ea49b5f8deb5ef92115e8a27c782

    • SHA1

      d3e117328401f366ba1e9768e7fba550df807f17

    • SHA256

      8774127a9c0ad2c7fbe926450c5f6eaf886003a36f251fbc9371741e19bf12cc

    • SHA512

      b917761d16bc7dcd80b62605deb0848c2f4b0bfe1316e9cd9f96ba515ce76b04d530880c149772c38d0ef0db7c71a13bd37172eba4711f4106d43308f1210d1d

    • SSDEEP

      12288:xPkDxmwsYcImXfJOEiJmdXX5OVgNWoblbZ9zQp1Wn8KwJzAVUYIqc8HjyruFwWrm:xPuAXfUEnBX5OVSnD93n8KgYIqc8DR9h

    Score
    10/10
    djvudiscoverypersistenceransomware

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • Checks computer location settings

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

    • 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