Overview

overview

10

Static

static

3

704c5f63a1...15.exe

windows7-x64

10

704c5f63a1...15.exe

windows10-2004-x64

10

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General

  • Target

    704c5f63a1f5ee442b0fb943cb222f1032732f9f651917d51445ac36c8939a15

  • Size

    700KB

  • Sample

    240106-yzehasgce6

  • MD5

    73b7f3110048a36f783e7252bef3249c

  • SHA1

    56f2fc7e606031ba6784f8b8eac4c8358c69bbbb

  • SHA256

    704c5f63a1f5ee442b0fb943cb222f1032732f9f651917d51445ac36c8939a15

  • SHA512

    4ee1b7dff9e2b5c3ca17c502235879045f93aed44b4dcd177c3fd92f16de0765f9727b32c223f897edd2cb55541810c491ff917f057be06bae602978036785a6

  • SSDEEP

    12288:YOMiOIe2cbO9hFe1tOwRun2wlIa2IXWaNmjCSFN74Oiv2BcM/cNS:1jeb6de1AhIa2O9mjPFNUnuZ/ck

Score
10/10
djvuvidardiscoverypersistenceransomwarestealer

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .cdwe

  • offline_id

    dSwr1XNNi5cIitB5eDPbMANcusB1dWGDB8ToUnt1

  • payload_url

    http://brusuax.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-e21iz7dS58 Price of private key and decrypt software is $1999. Discount 50% available if you contact us first 72 hours, that's price for you is $999. 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: 0842ASdw

rsa_pubkey.plain

Targets

    • Target

      704c5f63a1f5ee442b0fb943cb222f1032732f9f651917d51445ac36c8939a15

    • Size

      700KB

    • MD5

      73b7f3110048a36f783e7252bef3249c

    • SHA1

      56f2fc7e606031ba6784f8b8eac4c8358c69bbbb

    • SHA256

      704c5f63a1f5ee442b0fb943cb222f1032732f9f651917d51445ac36c8939a15

    • SHA512

      4ee1b7dff9e2b5c3ca17c502235879045f93aed44b4dcd177c3fd92f16de0765f9727b32c223f897edd2cb55541810c491ff917f057be06bae602978036785a6

    • SSDEEP

      12288:YOMiOIe2cbO9hFe1tOwRun2wlIa2IXWaNmjCSFN74Oiv2BcM/cNS:1jeb6de1AhIa2O9mjPFNUnuZ/ck

    Score
    10/10
    djvuvidardiscoverypersistenceransomwarestealer

    • Detect Vidar Stealer

      stealer

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

      stealervidar

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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