Overview

overview

10

Static

static

3

4056cae0f9...5d.exe

windows7-x64

10

4056cae0f9...5d.exe

windows10-2004-x64

10

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General

  • Target

    JaffaCakes118_f53c81ff96442cb24c5b07bd480f2ff86090e12cd47029769a8cd0db3120792c

  • Size

    648KB

  • Sample

    241226-1b2n2a1max

  • MD5

    32c85cfe192c430505e9613df76a1e20

  • SHA1

    352389af3a66e2705960471fce75230f47932b62

  • SHA256

    f53c81ff96442cb24c5b07bd480f2ff86090e12cd47029769a8cd0db3120792c

  • SHA512

    1cd54eabc5dcf133aac97b01546031193c3b270b177e45a4b5bfb26d004e464f3a9f47ad3500f22550e2679c09ea76fd760e8585898f94f54d806d7055d4e731

  • SSDEEP

    12288:LR4D5Y7QZQPdYNwJ/YbhEb5ggqH4vGsufExq+XYgygepOYS:LEWkgdYK1Yb29JmCNxq+Ioe8YS

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .ghas

  • offline_id

    miqhSGmGE63yWs53FTz0fnp8eCARpnaYE3O3p2t1

  • 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-0SLhZxAjRX 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: 0445JIjdm

rsa_pubkey.plain

Targets

    • Target

      4056cae0f9787a7bd35ca868faa92310378cd0e0b1d6607e874decc68d9d7d5d

    • Size

      771KB

    • MD5

      2f32d69d9586d78506eacea4673e173d

    • SHA1

      baabd756a8d201e6a0d37078b5d5e7bd04627c42

    • SHA256

      4056cae0f9787a7bd35ca868faa92310378cd0e0b1d6607e874decc68d9d7d5d

    • SHA512

      0f1252df5b9c3b76d75d791750b22b8d6e69e431a51c66425b041bdf95e8d60341f20836acf697e02c70d13407b7b17695a8e5a32245fc468212bd67f5230383

    • SSDEEP

      12288:ARlhKek5YlQtaPdY1wJLYBhGb5Qgq94vGeufExq+XImyOepF:2GekWmqdYydYBc95CCJxq+Yse

    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