Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Sharing

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General

  • Target

    c79b74067d567e0eb0875f6c1aac7aabee73c997db99666ab074a1f4a78ffaec

  • Size

    757KB

  • Sample

    240421-y3j7ysbc4v

  • MD5

    73771449cef9783922c55044af65b121

  • SHA1

    529ebaed4a85dc3f43c1aa6627c60abc1d3f6a93

  • SHA256

    c79b74067d567e0eb0875f6c1aac7aabee73c997db99666ab074a1f4a78ffaec

  • SHA512

    5985fc1d7320d0661a9f9e381d2a7076ba676401445c52727af4e11cd0fd4a3c05c481ae7b3ecb64fafa3d4cbd11887a54e389649eb3727122de767eece629a0

  • SSDEEP

    12288:TNEE+tyVbvNnHkJRfDMlItpwyiU+OE9DAjQ1fXdyHLwf4NYR/yAFf4K:mebaLfDv3ip1YefNyrwfRJ

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .bgjs

  • offline_id

    Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1

  • 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/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

      c79b74067d567e0eb0875f6c1aac7aabee73c997db99666ab074a1f4a78ffaec

    • Size

      757KB

    • MD5

      73771449cef9783922c55044af65b121

    • SHA1

      529ebaed4a85dc3f43c1aa6627c60abc1d3f6a93

    • SHA256

      c79b74067d567e0eb0875f6c1aac7aabee73c997db99666ab074a1f4a78ffaec

    • SHA512

      5985fc1d7320d0661a9f9e381d2a7076ba676401445c52727af4e11cd0fd4a3c05c481ae7b3ecb64fafa3d4cbd11887a54e389649eb3727122de767eece629a0

    • SSDEEP

      12288:TNEE+tyVbvNnHkJRfDMlItpwyiU+OE9DAjQ1fXdyHLwf4NYR/yAFf4K:mebaLfDv3ip1YefNyrwfRJ

    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