Overview

overview

10

Static

static

3

d5b3575eaa...4f.exe

windows7-x64

10

d5b3575eaa...4f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    d5b3575eaa5e6f4e964ceb0d0208d7fb1e45eea151d4ad8451b9fd85a312ec4f

  • Size

    802KB

  • Sample

    231012-gsnzqabc7w

  • MD5

    4978b3a7e5060709617a7780552c04b3

  • SHA1

    3eaecc7949657efa802a53f0f30cbf6b62a8a8a0

  • SHA256

    d5b3575eaa5e6f4e964ceb0d0208d7fb1e45eea151d4ad8451b9fd85a312ec4f

  • SHA512

    fb310bddeee8aecc4c88f3ff7a324c62958255f19e9e164780ee62712b49cff46d4aadcf7cc44420d90fd1a276448bba874a347447596505ee30721f5acc15b0

  • SSDEEP

    12288:EHnQ2xCCrYfbujJJG+KBmNrppexQobS92C4F1XQw4trSgBuFfvj9s8:KQqraKqO/peBRArSg4fv5s8

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test1/get.php

Attributes
  • extension

    .wwpl

  • offline_id

    LtYnlJvK0hICyOCeum6Tv4pbia9jcIGHVgA3Xht1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.com/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-xoUXGr6cqT 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: 0786JOsie

rsa_pubkey.plain

Targets

    • Target

      d5b3575eaa5e6f4e964ceb0d0208d7fb1e45eea151d4ad8451b9fd85a312ec4f

    • Size

      802KB

    • MD5

      4978b3a7e5060709617a7780552c04b3

    • SHA1

      3eaecc7949657efa802a53f0f30cbf6b62a8a8a0

    • SHA256

      d5b3575eaa5e6f4e964ceb0d0208d7fb1e45eea151d4ad8451b9fd85a312ec4f

    • SHA512

      fb310bddeee8aecc4c88f3ff7a324c62958255f19e9e164780ee62712b49cff46d4aadcf7cc44420d90fd1a276448bba874a347447596505ee30721f5acc15b0

    • SSDEEP

      12288:EHnQ2xCCrYfbujJJG+KBmNrppexQobS92C4F1XQw4trSgBuFfvj9s8:KQqraKqO/peBRArSg4fv5s8

    Score
    10/10
    djvudiscoverypersistenceransomware

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • 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