Overview

overview

10

Static

static

3

JaffaCakes...4b.exe

windows7-x64

10

JaffaCakes...4b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b

  • Size

    767KB

  • Sample

    241229-3r3mda1jhm

  • MD5

    a7bf7a2dc43fb14168aedaa3d5b38607

  • SHA1

    f02794710dce594ba39b80adf294e196ae17d43a

  • SHA256

    55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b

  • SHA512

    158cae02b822708336bc9084ec5c23fdb6c15851bbef355acdd26e4e46ddbf46241df5aaba62b554948f0041c3bdbab8d3d020f2860358cee06909e960e79fee

  • SSDEEP

    12288:fjt5rDpu4y3/p2hvilax1Dg6N2J2IuEfXQiGLR6ApCVmMLhtCMNzBxg63STnCu+5:fvP230hvilY13dIxnGLR6mCF0MNzB+6H

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test1/get.php

Attributes
  • extension

    .udla

  • offline_id

    qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1

  • 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-fnn5kv33Vv 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: 0435JIjdm

rsa_pubkey.plain

Targets

    • Target

      JaffaCakes118_55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b

    • Size

      767KB

    • MD5

      a7bf7a2dc43fb14168aedaa3d5b38607

    • SHA1

      f02794710dce594ba39b80adf294e196ae17d43a

    • SHA256

      55b3e65fe867b59909cad49935159a38a781d79b2200231b6ee5713c5ae9cd4b

    • SHA512

      158cae02b822708336bc9084ec5c23fdb6c15851bbef355acdd26e4e46ddbf46241df5aaba62b554948f0041c3bdbab8d3d020f2860358cee06909e960e79fee

    • SSDEEP

      12288:fjt5rDpu4y3/p2hvilax1Dg6N2J2IuEfXQiGLR6ApCVmMLhtCMNzBxg63STnCu+5:fvP230hvilY13dIxnGLR6mCF0MNzB+6H

    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