Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Sharing

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General

  • Target

    4def6b165636f77785a33c3b18117d74f5e930701dfe20f2bfb11ddb24924b82

  • Size

    710KB

  • Sample

    240522-ywq2xsef8t

  • MD5

    fda708b84341e23d935dbbd3328d324b

  • SHA1

    9ba9f633af7afe8b69f81c50beb2dda944938304

  • SHA256

    4def6b165636f77785a33c3b18117d74f5e930701dfe20f2bfb11ddb24924b82

  • SHA512

    345d7bfaa645b4bdc91b69cf4f1d5a1c3cbc64cd48e3db1e2a90c6a7074893e6951e13623094fe12b79cd1dcd8d2ba7dfd83c76d31f61fe4c642520b254c6a56

  • SSDEEP

    12288:6tKgwZikNmzG1pZawqSc8ZjbZb/Xoik/8crs9ETWiGsn4IcsksDHy:6tpCe4K8c8ZXZbQd/8cmETW19k

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .vepi

  • offline_id

    EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1

  • payload_url

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

    http://cajgtus.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/33b490a613f49fa190924f199d2c079e20240512191214/caaf73 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: 0871PsawqS

rsa_pubkey.plain

Targets

    • Target

      4def6b165636f77785a33c3b18117d74f5e930701dfe20f2bfb11ddb24924b82

    • Size

      710KB

    • MD5

      fda708b84341e23d935dbbd3328d324b

    • SHA1

      9ba9f633af7afe8b69f81c50beb2dda944938304

    • SHA256

      4def6b165636f77785a33c3b18117d74f5e930701dfe20f2bfb11ddb24924b82

    • SHA512

      345d7bfaa645b4bdc91b69cf4f1d5a1c3cbc64cd48e3db1e2a90c6a7074893e6951e13623094fe12b79cd1dcd8d2ba7dfd83c76d31f61fe4c642520b254c6a56

    • SSDEEP

      12288:6tKgwZikNmzG1pZawqSc8ZjbZb/Xoik/8crs9ETWiGsn4IcsksDHy:6tpCe4K8c8ZXZbQd/8cmETW19k

    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