Overview

overview

10

Static

static

3

JaffaCakes...cb.exe

windows7-x64

10

JaffaCakes...cb.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb

  • Size

    833KB

  • Sample

    241221-yk69rsyjgp

  • MD5

    8f9ab746db639bb8fbe1ca26c257d96f

  • SHA1

    0e176e872eadd55fa8729cc2bdb370341f491613

  • SHA256

    1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb

  • SHA512

    b5d79e4c7ece48155478121e71957d3e0152390a0bb24e1fa115a3d9b42d65a2dbf6a4f7fc7c3e154965e1e18538a70c43dddb2856bfeddbfecfda1699f2101c

  • SSDEEP

    12288:gHCubdk8JTMLRCdaT/jOmJaodGiOss756ZVwWcsUnBBO8W+vRoJt1ErYT8Az:g/5wLRCHmVnI5VJBOa5CJZ

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .byya

  • offline_id

    e8w5MeiBrZVoHLoloPm9MNlKBzXH70BB3B2KQ7t1

  • payload_url

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

    http://ugll.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-2w6I3WpXEh 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: 0475JIjdm

rsa_pubkey.plain

Targets

    • Target

      JaffaCakes118_1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb

    • Size

      833KB

    • MD5

      8f9ab746db639bb8fbe1ca26c257d96f

    • SHA1

      0e176e872eadd55fa8729cc2bdb370341f491613

    • SHA256

      1be295ac41dc46241b3be8381a28132eb5d46664619d36d4186788b4c4c1d2cb

    • SHA512

      b5d79e4c7ece48155478121e71957d3e0152390a0bb24e1fa115a3d9b42d65a2dbf6a4f7fc7c3e154965e1e18538a70c43dddb2856bfeddbfecfda1699f2101c

    • SSDEEP

      12288:gHCubdk8JTMLRCdaT/jOmJaodGiOss756ZVwWcsUnBBO8W+vRoJt1ErYT8Az:g/5wLRCHmVnI5VJBOa5CJZ

    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