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General

  • Target

    55cfb8de29960161a96abd8fa.exe

  • Size

    752KB

  • Sample

    230709-m5373ace66

  • MD5

    a1166c17c91bcb4de729365c3f58f1d5

  • SHA1

    0da62ba24c9a85e5787b28d8f43f817e7d804231

  • SHA256

    55cfb8de29960161a96abd8fa86ef7353957a3fd220a4cd6f867179192c773b0

  • SHA512

    f5f1b3eb9100e7670cec60d0c21ba946342d7dd052c7eea4bf0b45c6fb8d0562a9cb827747fc0b7eefbfa1a27131bd7cd69cc7455ce308ab8cecfbd50b1f37b2

  • SSDEEP

    12288:9Ax6Umh0GT8y9lp9LZuD7Y8JUlmtWI14YexoJkwjrWU6MfCb58hJ+T:7Uw0H0TufY5GWI14YWpwt6MfQYAT

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .wazp

  • offline_id

    V5TMuF1BBuDZFeJXDU5xmjrzp6rwS1IuZWNpDCt1

  • 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-6Dm02j1lRa 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: 0738ISdik

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.6

Botnet

dcad9d884915bbb6106f78e5e2ea6168

C2

https://steamcommunity.com/profiles/76561199523054520

https://t.me/game4serv

Attributes
  • profile_id_v2

    dcad9d884915bbb6106f78e5e2ea6168

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:103.0) Gecko/20100101 Firefox/103.0

Targets

    • Target

      55cfb8de29960161a96abd8fa.exe

    • Size

      752KB

    • MD5

      a1166c17c91bcb4de729365c3f58f1d5

    • SHA1

      0da62ba24c9a85e5787b28d8f43f817e7d804231

    • SHA256

      55cfb8de29960161a96abd8fa86ef7353957a3fd220a4cd6f867179192c773b0

    • SHA512

      f5f1b3eb9100e7670cec60d0c21ba946342d7dd052c7eea4bf0b45c6fb8d0562a9cb827747fc0b7eefbfa1a27131bd7cd69cc7455ce308ab8cecfbd50b1f37b2

    • SSDEEP

      12288:9Ax6Umh0GT8y9lp9LZuD7Y8JUlmtWI14YexoJkwjrWU6MfCb58hJ+T:7Uw0H0TufY5GWI14YWpwt6MfQYAT

    • 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