General

  • Target

    cf238879743da4fcae0cf079801f3e3561121bb4138efe741f46f7c409e761bf

  • Size

    815KB

  • Sample

    230818-fep47afe78

  • MD5

    ee41ecda87780733d0de831bfda28940

  • SHA1

    5c859e1cda300f5dada24a5a06503117ea19ed4b

  • SHA256

    cf238879743da4fcae0cf079801f3e3561121bb4138efe741f46f7c409e761bf

  • SHA512

    e1e92e600c0fd1752974d39aed2c8ba70b938299ec83d04140fa297a5420ae951cea91dd23d3271e19e28dfda6dd32b09a82fbfcfdc8e9dab0796b3f780b4d25

  • SSDEEP

    24576:sK9vawCJe0MOx8iSg+ULxnNG8YCaCP49qs:sOva11RNFYXDqs

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .tasa

  • offline_id

    cshgakAnUmp40qfk3nvyiyRRVOf96kqTUfJ1MNt1

  • 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-hmnZYNZHN5 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: 0759JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.2

Botnet

35aa2808fb90f9e9dac907e1be77f310

C2

https://t.me/odyssey_tg

https://steamcommunity.com/profiles/76561199541261200

Attributes
  • profile_id_v2

    35aa2808fb90f9e9dac907e1be77f310

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.30 (KHTML, like Gecko) Chrome/115.0.1.0 Safari/537.30

Targets

    • Target

      cf238879743da4fcae0cf079801f3e3561121bb4138efe741f46f7c409e761bf

    • Size

      815KB

    • MD5

      ee41ecda87780733d0de831bfda28940

    • SHA1

      5c859e1cda300f5dada24a5a06503117ea19ed4b

    • SHA256

      cf238879743da4fcae0cf079801f3e3561121bb4138efe741f46f7c409e761bf

    • SHA512

      e1e92e600c0fd1752974d39aed2c8ba70b938299ec83d04140fa297a5420ae951cea91dd23d3271e19e28dfda6dd32b09a82fbfcfdc8e9dab0796b3f780b4d25

    • SSDEEP

      24576:sK9vawCJe0MOx8iSg+ULxnNG8YCaCP49qs:sOva11RNFYXDqs

    • 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

    • 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

    • 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