Overview

overview

10

Static

static

3

JaffaCakes...b5.exe

windows7-x64

10

JaffaCakes...b5.exe

windows10-2004-x64

10

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General

  • Target

    JaffaCakes118_c4881301bb814a411edd0336dc4b3a5950d43e907d1d367b6f9c08e1e8ca5db5

  • Size

    839KB

  • Sample

    241229-11z7hayjdy

  • MD5

    abad5f90d37af2e9e17e98f24493efc3

  • SHA1

    9af39f17dc61a34e2a76a55461d7bf3b828d9178

  • SHA256

    c4881301bb814a411edd0336dc4b3a5950d43e907d1d367b6f9c08e1e8ca5db5

  • SHA512

    7fd7e542d923d6cf4217af234429fc4334b84d6017e35e4197e6686348c710990100294ab6bb624ba5212bfbee6082a67ec6cee7759f1268b0462993da2acbe8

  • SSDEEP

    12288:zcPjiCP8J5Fti0y19dG4AEvA3wH8OTygWITW8YRNCT2EwODF3RLgzgHtsw7wXTXB:wrVP8htS19R0wrTFcy2eGgHtTwzB

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/fhsgtsspen6/get.php

Attributes
  • extension

    .nuhb

  • offline_id

    PfLhykvDxmCghCq8peuxBtQ3c0QBuANi8WUkuet1

  • payload_url

    http://zerit.top/dl/build2.exe

    http://fuyt.org/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. You can get and look video overview decrypt tool: https://we.tl/t-c565B1ILoZ Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. 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: 0453Jbdio

rsa_pubkey.plain

Targets

    • Target

      JaffaCakes118_c4881301bb814a411edd0336dc4b3a5950d43e907d1d367b6f9c08e1e8ca5db5

    • Size

      839KB

    • MD5

      abad5f90d37af2e9e17e98f24493efc3

    • SHA1

      9af39f17dc61a34e2a76a55461d7bf3b828d9178

    • SHA256

      c4881301bb814a411edd0336dc4b3a5950d43e907d1d367b6f9c08e1e8ca5db5

    • SHA512

      7fd7e542d923d6cf4217af234429fc4334b84d6017e35e4197e6686348c710990100294ab6bb624ba5212bfbee6082a67ec6cee7759f1268b0462993da2acbe8

    • SSDEEP

      12288:zcPjiCP8J5Fti0y19dG4AEvA3wH8OTygWITW8YRNCT2EwODF3RLgzgHtsw7wXTXB:wrVP8htS19R0wrTFcy2eGgHtTwzB

    Score
    10/10
    djvudiscoverypersistenceransomware

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • Djvu family

      djvu

    • 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