Overview

overview

10

Static

static

3

sample.exe

windows7-x64

10

sample.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_350c038a1e1d9c2eed1f94fac6f7cab62266bffe9c26c7d7387f27d69c378b42

  • Size

    680KB

  • Sample

    241222-lm8jdssrew

  • MD5

    0b2eb756e539c9d45895e1d1b92c9f89

  • SHA1

    bcb1c7d4298c5798b15a2867fff9d5134084d46c

  • SHA256

    350c038a1e1d9c2eed1f94fac6f7cab62266bffe9c26c7d7387f27d69c378b42

  • SHA512

    6c171d83d39ab9adb05fd6d51a1cb76ba16e2774ad236be3d7719dfdcae0a42c1bd242123d601e363a8f3858207c711c6937a746e01ac0caba5a53aa8e204fec

  • SSDEEP

    12288:vyMOwpKVYet+hMGrztpVCwRZbwiPdb0OpQ3OAr+9H4CWqliB/13Hngcp40ImMvPd:vGaeMhMQRpYwf/lQF3OC+F4CHcG0IT

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test3/get.php

Attributes
  • extension

    .ygvb

  • 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: 0452Jbdio

rsa_pubkey.plain

Targets

    • Target

      sample

    • Size

      824KB

    • MD5

      24c8011aeb1714e43f7eea47dbfa1daa

    • SHA1

      44012799fcfd02ac89a4469a047c72f3bb9485ba

    • SHA256

      eb7decebf8226f98cd64580f6ab6d001ddf7dc1c7cd28cd3c6175c505b13dc2f

    • SHA512

      d771c86573f5051610e3bc14030614df56741fa1c2bdd3304a5088e99335b9fb2cada32d8f3d43dce74f12eba3e8946206247f480c0f06d7d516f700759fa9ee

    • SSDEEP

      24576:SvlXzMoyhMQZF4w/ZR+B3OG+FSyHQiA/tB:4ljMoerFRa+GmvHQiA

    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