Overview

overview

10

Static

static

3

b2f2943477...18.exe

windows7-x64

10

b2f2943477...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b2f294347754b834dfa0798a7f80dc89_JaffaCakes118

  • Size

    831KB

  • Sample

    241129-wnxtdsyrhw

  • MD5

    b2f294347754b834dfa0798a7f80dc89

  • SHA1

    a62a785570f2302af02fa981a279afcb371c7d49

  • SHA256

    f911d9fe94c6aa35874faa758432168c6846c24b010e8f351f874ac6830c2a2d

  • SHA512

    4e5195423198d4ea5f1742e9ded4598153a1a40ae1df65796cd457c75ffdeb433cebf85d6fcc5b527d2d2409487104386ad6073e071e6843d712f05c114a265d

  • SSDEEP

    24576:htVEx77FqKymt0pA+zuk4Bce6nonkZI98UWcPUIX:vk7FcmwA+zF4WXoR98A

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://astdg.top/fhsgtsspen6/get.php

Attributes
  • extension

    .reqg

  • offline_id

    ioYmb0jtMMtue7xjmkS3WQWGWLR8FTQhb2giQtt1

  • payload_url

    http://securebiz.org/dl/build2.exe

    http://astdg.top/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-jTbSQT8ApY 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: 0324gDrgo

rsa_pubkey.plain

Targets

    • Target

      b2f294347754b834dfa0798a7f80dc89_JaffaCakes118

    • Size

      831KB

    • MD5

      b2f294347754b834dfa0798a7f80dc89

    • SHA1

      a62a785570f2302af02fa981a279afcb371c7d49

    • SHA256

      f911d9fe94c6aa35874faa758432168c6846c24b010e8f351f874ac6830c2a2d

    • SHA512

      4e5195423198d4ea5f1742e9ded4598153a1a40ae1df65796cd457c75ffdeb433cebf85d6fcc5b527d2d2409487104386ad6073e071e6843d712f05c114a265d

    • SSDEEP

      24576:htVEx77FqKymt0pA+zuk4Bce6nonkZI98UWcPUIX:vk7FcmwA+zF4WXoR98A

    Score
    10/10
    djvudiscoverypersistenceransomware

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • Djvu family

      djvu

    • Renames multiple (51) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • 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