Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Sharing

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General

  • Target

    5879a75784ceca8c6c8e9fad40d6a2f5ea6c7e265ee09b7763388ff1225cb4b7

  • Size

    797KB

  • Sample

    240416-jvcqkseg21

  • MD5

    e0f4511d749587854a4513380c78c0c1

  • SHA1

    11b656344f3e81f3574d8addd348430efcbb8a04

  • SHA256

    5879a75784ceca8c6c8e9fad40d6a2f5ea6c7e265ee09b7763388ff1225cb4b7

  • SHA512

    53eea41de3d9788e48a3e5be32b322fb81769488cdebcff206a7f0e2500253977e8a3e1feebe087e8dccad05d279661f28fafae36f7eca92a3b02f2b1ff6e48c

  • SSDEEP

    24576:nLZZzpVzAyjUykiCbIp7KAhY8SW49NvXJ/aOHK:DDLz1CUwAhLSxNvXJ/9

Score
10/10
djvudiscoverypersistenceransomware

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

Targets

    • Target

      5879a75784ceca8c6c8e9fad40d6a2f5ea6c7e265ee09b7763388ff1225cb4b7

    • Size

      797KB

    • MD5

      e0f4511d749587854a4513380c78c0c1

    • SHA1

      11b656344f3e81f3574d8addd348430efcbb8a04

    • SHA256

      5879a75784ceca8c6c8e9fad40d6a2f5ea6c7e265ee09b7763388ff1225cb4b7

    • SHA512

      53eea41de3d9788e48a3e5be32b322fb81769488cdebcff206a7f0e2500253977e8a3e1feebe087e8dccad05d279661f28fafae36f7eca92a3b02f2b1ff6e48c

    • SSDEEP

      24576:nLZZzpVzAyjUykiCbIp7KAhY8SW49NvXJ/aOHK:DDLz1CUwAhLSxNvXJ/9

    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