Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target

    74f1577d80c40c35e0f7bb6ca1f376b40506228d7bbb73f397c4962ec23f9bcb

  • Size

    805KB

  • Sample

    240417-mrxhcsdh6y

  • MD5

    7df3296629aa467a3f13dc542e7a6b5e

  • SHA1

    461643cfe9b216c4c531cd591f871576cd26f5e9

  • SHA256

    74f1577d80c40c35e0f7bb6ca1f376b40506228d7bbb73f397c4962ec23f9bcb

  • SHA512

    3e4eb1d1c147cb023551a9216d78e6162b96f1c6b4f1f1f2f3e783415168dad4c77e802d317406c01088061ad1bbc4b89ea8b6fe596bb654232d2b1be7862d3d

  • SSDEEP

    12288:xnGFN6a8E1BP3VlcprK/iajnfc7asSkTpflU78t7ZOV1WBM:xJ8fVlcpG/Xzc7b7Lt70oM

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

      74f1577d80c40c35e0f7bb6ca1f376b40506228d7bbb73f397c4962ec23f9bcb

    • Size

      805KB

    • MD5

      7df3296629aa467a3f13dc542e7a6b5e

    • SHA1

      461643cfe9b216c4c531cd591f871576cd26f5e9

    • SHA256

      74f1577d80c40c35e0f7bb6ca1f376b40506228d7bbb73f397c4962ec23f9bcb

    • SHA512

      3e4eb1d1c147cb023551a9216d78e6162b96f1c6b4f1f1f2f3e783415168dad4c77e802d317406c01088061ad1bbc4b89ea8b6fe596bb654232d2b1be7862d3d

    • SSDEEP

      12288:xnGFN6a8E1BP3VlcprK/iajnfc7asSkTpflU78t7ZOV1WBM:xJ8fVlcpG/Xzc7b7Lt70oM

    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