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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

    1b5b24e46c2720446917b8ee3bf31067c956eefa1cba31b571bba5fe96c0176b

  • Size

    755KB

  • Sample

    240327-gjm13aha21

  • MD5

    f94769ddbc0a28cb02f6158409ba1aa3

  • SHA1

    496ade8f2e58f19b465c5a8acae71d3e75f9c57b

  • SHA256

    1b5b24e46c2720446917b8ee3bf31067c956eefa1cba31b571bba5fe96c0176b

  • SHA512

    4a070abd3d7b3329fb495c49bf39e6bb2f64bf44ee8faf2d9fc7f461a938b0346d6ff84b15eebee160c2423f3199185bcfd11c938d024545cd783ca0edfe64e7

  • SSDEEP

    12288:6Me6fKEJVlkJVNdRjzKlRMGwegtYZGscvzmgXaEZzAeT0LIUgq1gAWUFAUkl87NC:6+CMM1zHKGxeZGD6gvBAdLIu8UFAUkOk

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .looy

  • offline_id

    1eSPzWRaNslCgtjBZfL5pzvovoiaVI4IZSnvAwt1

  • 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/3ed7a617738550b0a00c5aa231c0752020240316170955/d71ce1 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: 0858PsawqS

rsa_pubkey.plain

Targets

    • Target

      1b5b24e46c2720446917b8ee3bf31067c956eefa1cba31b571bba5fe96c0176b

    • Size

      755KB

    • MD5

      f94769ddbc0a28cb02f6158409ba1aa3

    • SHA1

      496ade8f2e58f19b465c5a8acae71d3e75f9c57b

    • SHA256

      1b5b24e46c2720446917b8ee3bf31067c956eefa1cba31b571bba5fe96c0176b

    • SHA512

      4a070abd3d7b3329fb495c49bf39e6bb2f64bf44ee8faf2d9fc7f461a938b0346d6ff84b15eebee160c2423f3199185bcfd11c938d024545cd783ca0edfe64e7

    • SSDEEP

      12288:6Me6fKEJVlkJVNdRjzKlRMGwegtYZGscvzmgXaEZzAeT0LIUgq1gAWUFAUkl87NC:6+CMM1zHKGxeZGD6gvBAdLIu8UFAUkOk

    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