General

  • Target

    274a3adc493e3976af2c17b42f28c9e2.exe

  • Size

    791KB

  • Sample

    221012-bqnchscbap

  • MD5

    274a3adc493e3976af2c17b42f28c9e2

  • SHA1

    4935386d5a008fcc12c4ab1230575dd014a81621

  • SHA256

    81cd576957b4b67e51a30ba43175d761d4ba32729a0db5622661c169d4a70cf8

  • SHA512

    e77b27c51683f78c96983ad20a8d473bb2d5f4f9367894fb4c86310561cef5ef299a8df1e8f1a51f38bd6c84a1e55c7f48f3381b7958b9d2fbd3094bc115375b

  • SSDEEP

    24576:4W6XJi3MKnSQaC6ip96sasGf9/J8vt/0sZH:41g8Knf/aL9m/0

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .tohj

  • offline_id

    SSHsHMHGmSIhrz50VnIxLJJX15osxEQY6iXedXt1

  • payload_url

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

    http://winnlinne.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-Kbx8mJatqN 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: 0574Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

55

Botnet

517

C2

https://t.me/truewallets

https://mas.to/@zara99

http://116.203.10.3:80

Attributes
  • profile_id

    517

Targets

    • Target

      274a3adc493e3976af2c17b42f28c9e2.exe

    • Size

      791KB

    • MD5

      274a3adc493e3976af2c17b42f28c9e2

    • SHA1

      4935386d5a008fcc12c4ab1230575dd014a81621

    • SHA256

      81cd576957b4b67e51a30ba43175d761d4ba32729a0db5622661c169d4a70cf8

    • SHA512

      e77b27c51683f78c96983ad20a8d473bb2d5f4f9367894fb4c86310561cef5ef299a8df1e8f1a51f38bd6c84a1e55c7f48f3381b7958b9d2fbd3094bc115375b

    • SSDEEP

      24576:4W6XJi3MKnSQaC6ip96sasGf9/J8vt/0sZH:41g8Knf/aL9m/0

    • 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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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