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General

  • Target

    6bb499b088e28cf3b3503baf9d888ed58e3077a5278fcd18301274d591617744

  • Size

    723KB

  • Sample

    231011-wctycscf7s

  • MD5

    8846a2226f2a09cc1aa53dc160896323

  • SHA1

    f4dcf8c8b14454d212e4618c1c34a57e2f86e88a

  • SHA256

    6bb499b088e28cf3b3503baf9d888ed58e3077a5278fcd18301274d591617744

  • SHA512

    f0d15232a9662986f9966a245ebe25746b02568587c00136911d8d7aab9d6819d498f154316e9bc9a08bb7a2c69d87a652d2a8c1f8dc30c46a88cb9a90de0981

  • SSDEEP

    12288:h+dcKHCFOdfhiv3uHLxq+8pjWRoRLqztBKELuWKhb23dKEn/1opYJGix/X0:h+uTz33+8R8/pPKhb4dLopYJGEX0

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .azhi

  • offline_id

    GQ9DjFmWFDqpsyzsOnaxE1Xr4MPL1dG4vPfPDNt1

  • 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-e5pgPH03fe 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: 0793

rsa_pubkey.plain

Extracted

Family

vidar

Version

6

Botnet

d37c48c18c73cc0e155c7e1dfde06db9

C2

https://steamcommunity.com/profiles/76561199560322242

https://t.me/cahalgo

Attributes
  • profile_id_v2

    d37c48c18c73cc0e155c7e1dfde06db9

  • user_agent

    Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0 uacq

Targets

    • Target

      6bb499b088e28cf3b3503baf9d888ed58e3077a5278fcd18301274d591617744

    • Size

      723KB

    • MD5

      8846a2226f2a09cc1aa53dc160896323

    • SHA1

      f4dcf8c8b14454d212e4618c1c34a57e2f86e88a

    • SHA256

      6bb499b088e28cf3b3503baf9d888ed58e3077a5278fcd18301274d591617744

    • SHA512

      f0d15232a9662986f9966a245ebe25746b02568587c00136911d8d7aab9d6819d498f154316e9bc9a08bb7a2c69d87a652d2a8c1f8dc30c46a88cb9a90de0981

    • SSDEEP

      12288:h+dcKHCFOdfhiv3uHLxq+8pjWRoRLqztBKELuWKhb23dKEn/1opYJGix/X0:h+uTz33+8R8/pPKhb4dLopYJGEX0

    • 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

    • 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