Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Sharing

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General

  • Target

    a5a27167e98c1ee093349bc0b341b8a9c73b0c43771b4b860c5ee72881a620a5

  • Size

    710KB

  • Sample

    240521-xx13vafe8v

  • MD5

    8858045135c3537e4cc0ea6c49532cc4

  • SHA1

    03ea0b26b5766dfcf0cb376a408251755bb608f5

  • SHA256

    a5a27167e98c1ee093349bc0b341b8a9c73b0c43771b4b860c5ee72881a620a5

  • SHA512

    24edb6df506ed00d808f69e6494cdbaafa98c3387e698f2a0312b4feecf1a4008959c18e55f4b2ac62e488728cc0988d5b6b447c62b4e8b48b8faf4f1ea7a879

  • SSDEEP

    12288:YIJja8HJIClsdRWU9A9NfLfMs46sa97pOeMcgobLEk8MAz:/a8HVukU96dw4lOeMmb45

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/test2/get.php

Attributes
  • extension

    .vehu

  • 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: 0872PsawqS

rsa_pubkey.plain

Targets

    • Target

      a5a27167e98c1ee093349bc0b341b8a9c73b0c43771b4b860c5ee72881a620a5

    • Size

      710KB

    • MD5

      8858045135c3537e4cc0ea6c49532cc4

    • SHA1

      03ea0b26b5766dfcf0cb376a408251755bb608f5

    • SHA256

      a5a27167e98c1ee093349bc0b341b8a9c73b0c43771b4b860c5ee72881a620a5

    • SHA512

      24edb6df506ed00d808f69e6494cdbaafa98c3387e698f2a0312b4feecf1a4008959c18e55f4b2ac62e488728cc0988d5b6b447c62b4e8b48b8faf4f1ea7a879

    • SSDEEP

      12288:YIJja8HJIClsdRWU9A9NfLfMs46sa97pOeMcgobLEk8MAz:/a8HVukU96dw4lOeMmb45

    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