Overview

overview

10

Static

static

3

b7f005f78f...41.exe

windows7-x64

10

b7f005f78f...41.exe

windows10-2004-x64

10

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General

  • Target

    JaffaCakes118_4e55d2f399fd3b13f80f77ef214a2b2c328e57968ebad37c21be67f8ef0957a6

  • Size

    659KB

  • Sample

    241222-dq8pka1mf1

  • MD5

    a95c7cbd082dd5a976f9b64667a14f59

  • SHA1

    7c0b7323097b88333fe0eb0a24db0a0dfda2849c

  • SHA256

    4e55d2f399fd3b13f80f77ef214a2b2c328e57968ebad37c21be67f8ef0957a6

  • SHA512

    ff342b48e140c37c5e237af6099201e4284a81d111991269a7707e1c918ea0a0a50c10e2a60b7f855ef20bf933e54ca179b600c87b6a1fc4cdf761409e204b74

  • SSDEEP

    12288:Cg4UJqPvNbpxwK4nXzHv0LH1Vdjl4/us7arDhOQUc4MngPKWD4bIlv0Q:5JqHtQrDMLH1Vd+/r7aoQb4tKU/1

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

      b7f005f78f4fa1f50156e6ce98373aef46ea5b594322ad146d14e892ef04ce41

    • Size

      761KB

    • MD5

      d829a46501729b196b794f955aa69cc0

    • SHA1

      20efd5be2d09c31001c7b107388a9aee76f41eea

    • SHA256

      b7f005f78f4fa1f50156e6ce98373aef46ea5b594322ad146d14e892ef04ce41

    • SHA512

      1497087e6fc04c23043da0974db4cd98c4c77a1509f648b2e230f0a8f5727fae3c8dd463fb1d9cc1e7094fb9692c35630999f7c14c4c28b837dc6dd72e75d9ec

    • SSDEEP

      12288:WvbhHdeD79q7DmMHUvJqHv/bpxwW4nnpdT0LHdVdjl8/e+7krnhOQUc4Mng/KWDi:E7eVSeJqPjQXnoLHdVdm/37kMQb4pKUi

    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