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Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Sharing

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General

  • Target

    317b4996cbec7ddf883ccf2096d16fe54555585cd3e2a08f30f5ad9681c20a70

  • Size

    731KB

  • Sample

    240512-x8yf4aff92

  • MD5

    d51cf917da05a65c391ed414098d55cf

  • SHA1

    af96810d796ce448101d215814843dbd3e2ad26a

  • SHA256

    317b4996cbec7ddf883ccf2096d16fe54555585cd3e2a08f30f5ad9681c20a70

  • SHA512

    816cc4dc9c4c9aa45fd0b1d085b46e23eca4dd1c89eba4460f8661b46fa995ce16a3d339156b0bece6336bb3b33f40a35099e978cd609bdd49188c065ac2308a

  • SSDEEP

    12288:Iztql3fUxOTPvWbIAOOyQ2yiAOrFUzljlzvYQKYbN8TWTVVN9pQ+x:IzB8LwVOe+Q9bTxz

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .qehu

  • offline_id

    jgILOjDrBgyzY4JmT3B2jDSyBmDPBruKk8bKs6t1

  • 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/665ddae3fc3cd10bbaaa4350408b196920240504141005/4cae7e 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: 0868PsawqS

rsa_pubkey.plain

Targets

    • Target

      317b4996cbec7ddf883ccf2096d16fe54555585cd3e2a08f30f5ad9681c20a70

    • Size

      731KB

    • MD5

      d51cf917da05a65c391ed414098d55cf

    • SHA1

      af96810d796ce448101d215814843dbd3e2ad26a

    • SHA256

      317b4996cbec7ddf883ccf2096d16fe54555585cd3e2a08f30f5ad9681c20a70

    • SHA512

      816cc4dc9c4c9aa45fd0b1d085b46e23eca4dd1c89eba4460f8661b46fa995ce16a3d339156b0bece6336bb3b33f40a35099e978cd609bdd49188c065ac2308a

    • SSDEEP

      12288:Iztql3fUxOTPvWbIAOOyQ2yiAOrFUzljlzvYQKYbN8TWTVVN9pQ+x:IzB8LwVOe+Q9bTxz

    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