General

  • Target

    7107d8b96a805ea42ca3638ec4296c2d9fa8241913a747499f699e8f68d90199

  • Size

    752KB

  • Sample

    231105-sr38ssga71

  • MD5

    1b3ce1623384a86ede53ebad4b9638ef

  • SHA1

    a341fca1b135397358b4f496c9398c80c4258e19

  • SHA256

    7107d8b96a805ea42ca3638ec4296c2d9fa8241913a747499f699e8f68d90199

  • SHA512

    ff9cc53041d89869c9bec0ef97cd80940dee7435196e6bbb21660d16bc69c3d3ef62c1e9b8d5e3e6e5e98b5d054faed407c72d3360b33a787521c6f1dbb14f73

  • SSDEEP

    12288:9Wvz488OBF7YvMygRmqSsFXFsePCreJZdMNIMyb9iYq5HsM/lTYh0VzTBEqy:9QRlBF7YMmqdFVse52IM8i557Uhwzly

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .yzaq

  • offline_id

    x2zqmFxw8ydx3wkiEeNayQ64Eyg2U5MS31sTegt1

  • 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://go.wetransfer.com/t-Z4jZBpJ1EK 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: 0818ASdw

rsa_pubkey.plain

Targets

    • Target

      7107d8b96a805ea42ca3638ec4296c2d9fa8241913a747499f699e8f68d90199

    • Size

      752KB

    • MD5

      1b3ce1623384a86ede53ebad4b9638ef

    • SHA1

      a341fca1b135397358b4f496c9398c80c4258e19

    • SHA256

      7107d8b96a805ea42ca3638ec4296c2d9fa8241913a747499f699e8f68d90199

    • SHA512

      ff9cc53041d89869c9bec0ef97cd80940dee7435196e6bbb21660d16bc69c3d3ef62c1e9b8d5e3e6e5e98b5d054faed407c72d3360b33a787521c6f1dbb14f73

    • SSDEEP

      12288:9Wvz488OBF7YvMygRmqSsFXFsePCreJZdMNIMyb9iYq5HsM/lTYh0VzTBEqy:9QRlBF7YMmqdFVse52IM8i557Uhwzly

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • 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

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • 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

MITRE ATT&CK Enterprise v15

Tasks