Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

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General

  • Target

    5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf

  • Size

    810KB

  • Sample

    240428-kjzxeabh53

  • MD5

    3d6410af469e6d70a54e4892e7b28260

  • SHA1

    cb7bd6b2116b472ee944433396f365d28af52d76

  • SHA256

    5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf

  • SHA512

    dd719ab3e1ab2482cd888df917c2c5dc452e08f5f25ee7003a7c07d0017fe0c8bb37c0a5f8ffed608d640742ba32ef1715cb0f0532741d31277e7e9f8226f193

  • SSDEEP

    12288:CFmZSeenEm+wj7z9bA6DC62y5/020WxKZkc8ZbE86SGcj97mcRKMODmd:XSj7z9zDUI/02VoGcQb36Odm/Mymd

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .bgjs

  • offline_id

    Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1

  • 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/54cdfd152fe98eedb628a1f4ddb7076420240421150208/403a27 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: 0863PsawqS

rsa_pubkey.plain

Targets

    • Target

      5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf

    • Size

      810KB

    • MD5

      3d6410af469e6d70a54e4892e7b28260

    • SHA1

      cb7bd6b2116b472ee944433396f365d28af52d76

    • SHA256

      5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf

    • SHA512

      dd719ab3e1ab2482cd888df917c2c5dc452e08f5f25ee7003a7c07d0017fe0c8bb37c0a5f8ffed608d640742ba32ef1715cb0f0532741d31277e7e9f8226f193

    • SSDEEP

      12288:CFmZSeenEm+wj7z9bA6DC62y5/020WxKZkc8ZbE86SGcj97mcRKMODmd:XSj7z9zDUI/02VoGcQb36Odm/Mymd

    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