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General

  • Target

    b67d8f62acc508f376177aade85c68ed2263e97c83495aff6e705874b5b01a0a

  • Size

    738KB

  • Sample

    240219-acchesgb94

  • MD5

    92cdb34ddc3c41a7f5bd3bdf2a56fa47

  • SHA1

    3ac15a53f51b3e98bbff1386a75e854dc91fa36a

  • SHA256

    b67d8f62acc508f376177aade85c68ed2263e97c83495aff6e705874b5b01a0a

  • SHA512

    bc25a779d19ad0dc40e00f9f0cdf4772c13517297a0fc7db56cbd97e2d992cc0298668de00ad07eee177be0278a9554b20e7575626d3e68b1fb3d79e94693646

  • SSDEEP

    12288:76rIfM84caJqBUk+ojvr/LukOi2QRbIeW3eXMrGbWfv3qMUnCCcI7vZFIQnJclyz:76A4OUk+ojvrLuvCRbIzO3bWH3qMqjmk

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .lkhy

  • offline_id

    OxV6DGl22io8sqMOW1zCCOlzPiv4f1Vqzw7Y8zt1

  • payload_url

    http://brusuax.com/dl/build2.exe

    http://habrafa.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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://we.tl/t-uNdL2KHHdy Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0851ASdw

rsa_pubkey.plain

Extracted

Family

vidar

Version

7.8

Botnet

13bd7290c1961db27b4ede41bfbf4c5e

C2

https://t.me/karl3on

https://steamcommunity.com/profiles/76561199637071579

Attributes
  • profile_id_v2

    13bd7290c1961db27b4ede41bfbf4c5e

  • user_agent

    Mozilla/5.0 (X11; Linux 3.5.4-1-ARCH i686; es) KHTML/4.9.1 (like Gecko) Konqueror/4.9

Targets

    • Target

      b67d8f62acc508f376177aade85c68ed2263e97c83495aff6e705874b5b01a0a

    • Size

      738KB

    • MD5

      92cdb34ddc3c41a7f5bd3bdf2a56fa47

    • SHA1

      3ac15a53f51b3e98bbff1386a75e854dc91fa36a

    • SHA256

      b67d8f62acc508f376177aade85c68ed2263e97c83495aff6e705874b5b01a0a

    • SHA512

      bc25a779d19ad0dc40e00f9f0cdf4772c13517297a0fc7db56cbd97e2d992cc0298668de00ad07eee177be0278a9554b20e7575626d3e68b1fb3d79e94693646

    • SSDEEP

      12288:76rIfM84caJqBUk+ojvr/LukOi2QRbIeW3eXMrGbWfv3qMUnCCcI7vZFIQnJclyz:76A4OUk+ojvrLuvCRbIzO3bWH3qMqjmk

    • Detect Vidar Stealer

    • 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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Adds Run key to start application

    • 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