Overview

overview

10

Static

static

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    file.exe

  • Size

    762KB

  • Sample

    220908-kyv7rsbcfl

  • MD5

    95333b29b40364b3a531799cd633d927

  • SHA1

    215b8487c385e3d1d32d4ae53ad441c969a7705b

  • SHA256

    5fd628901f00dc6a963eb149d432194b8ba17c5338a8cb85fc2494afa2538750

  • SHA512

    b0b49a6b90afebde77ea56a74ae0f1636e3b4f41a0ab7727fd0bd21f1f48b1007c48a446ccec9e235912cd4c5691c8a6aa76dbc6456cb23938c2e98daa3c1bde

  • SSDEEP

    12288:ZUbL2vnVCwMKTZwXWKWTD2rEpIIw4nqES9ENiPXaGl+svq2nFZWmF8tmvALbay8R:6WPY494cRpIIwM+9EulAGbn+C6LbBlJs

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://acacaca.org/test3/get.php

Attributes
  • extension

    .mmvb

  • offline_id

    yd6oYv6aBN90yFzTWdZ34sXSXtXiauzOLXZyWht1

  • payload_url

    http://rgyui.top/dl/build2.exe

    http://acacaca.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-xuPJqoyzQE 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: 0556Jhyjd

rsa_pubkey.plain

Targets

    • Target

      file.exe

    • Size

      762KB

    • MD5

      95333b29b40364b3a531799cd633d927

    • SHA1

      215b8487c385e3d1d32d4ae53ad441c969a7705b

    • SHA256

      5fd628901f00dc6a963eb149d432194b8ba17c5338a8cb85fc2494afa2538750

    • SHA512

      b0b49a6b90afebde77ea56a74ae0f1636e3b4f41a0ab7727fd0bd21f1f48b1007c48a446ccec9e235912cd4c5691c8a6aa76dbc6456cb23938c2e98daa3c1bde

    • SSDEEP

      12288:ZUbL2vnVCwMKTZwXWKWTD2rEpIIw4nqES9ENiPXaGl+svq2nFZWmF8tmvALbay8R:6WPY494cRpIIwM+9EulAGbn+C6LbBlJs

    Score
    10/10
    djvudiscoverypersistenceransomware

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • 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 v6

Tasks