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General

  • Target

    cb2cb064a67a4e065caf10a11a1a892cbc66c8ab1fe295a18929a2d97598f1f7

  • Size

    679KB

  • Sample

    230214-pj49cadc45

  • MD5

    60fb9c5314a78d039aecacc071194bed

  • SHA1

    0664ab95a381e6ae7abc77388694ee2f348d4b4f

  • SHA256

    cb2cb064a67a4e065caf10a11a1a892cbc66c8ab1fe295a18929a2d97598f1f7

  • SHA512

    8e3b1b1a511856d338294e8624fe629c1302815bd5e8bd035de176eba616adcc5485784c7984ab2541c3d45553cb3899ea00ed8938a56c9b6260262189a577c5

  • SSDEEP

    12288:U7VAUbHrTToatSnwb8GJgtnp5rFolEwOlxTraOrV3Bk4Og7YSU99d5coUI:+bHrTEagwxJgtp5rFolZE/aOrVfO6UbL

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .hhmm

  • offline_id

    dMMXkgwQTycP13C5xwPbHDSzhx1ZxiPgIMZXewt1

  • payload_url

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

    http://bihsy.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-UQkYLBSiQ4 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: 0646JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

2.5

Botnet

19

Attributes
  • profile_id

    19

Targets

    • Target

      cb2cb064a67a4e065caf10a11a1a892cbc66c8ab1fe295a18929a2d97598f1f7

    • Size

      679KB

    • MD5

      60fb9c5314a78d039aecacc071194bed

    • SHA1

      0664ab95a381e6ae7abc77388694ee2f348d4b4f

    • SHA256

      cb2cb064a67a4e065caf10a11a1a892cbc66c8ab1fe295a18929a2d97598f1f7

    • SHA512

      8e3b1b1a511856d338294e8624fe629c1302815bd5e8bd035de176eba616adcc5485784c7984ab2541c3d45553cb3899ea00ed8938a56c9b6260262189a577c5

    • SSDEEP

      12288:U7VAUbHrTToatSnwb8GJgtnp5rFolEwOlxTraOrV3Bk4Og7YSU99d5coUI:+bHrTEagwxJgtp5rFolZE/aOrVfO6UbL

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • 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 user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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 v6

Tasks