General

  • Target

    a89e2e32bdc2b5e56ee8111f8fc33c1de3357f40afd3cf78d78ee67b2a5f2802

  • Size

    729KB

  • Sample

    221010-257mtadgcm

  • MD5

    64178c18b19cc1ef6c02c492d59fde9a

  • SHA1

    d16345aefc7a03e48cd788f61d7cb241ac6f7d12

  • SHA256

    a89e2e32bdc2b5e56ee8111f8fc33c1de3357f40afd3cf78d78ee67b2a5f2802

  • SHA512

    5c7d6508d0243e7ee2bece56509ddf2a4e532e7ab56dc3fc2bd339e35830ebfb6703d65ed27abb8e2a2871b25daca8c15670d6f9ce9e4fd1d696bef66749e788

  • SSDEEP

    12288:wbNJxKezSb+Us7qor5814I4VVR7J8nlT7HU4s4w6EB8T+ZeRVd0PAvmNCtfurtA3:wxa+n7qIbI4PR7SlTrU4sP60Q+Z4z0Pw

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

54.9

Botnet

517

C2

https://t.me/larsenup

https://ioc.exchange/@zebra54

Attributes
  • profile_id

    517

Targets

    • Target

      a89e2e32bdc2b5e56ee8111f8fc33c1de3357f40afd3cf78d78ee67b2a5f2802

    • Size

      729KB

    • MD5

      64178c18b19cc1ef6c02c492d59fde9a

    • SHA1

      d16345aefc7a03e48cd788f61d7cb241ac6f7d12

    • SHA256

      a89e2e32bdc2b5e56ee8111f8fc33c1de3357f40afd3cf78d78ee67b2a5f2802

    • SHA512

      5c7d6508d0243e7ee2bece56509ddf2a4e532e7ab56dc3fc2bd339e35830ebfb6703d65ed27abb8e2a2871b25daca8c15670d6f9ce9e4fd1d696bef66749e788

    • SSDEEP

      12288:wbNJxKezSb+Us7qor5814I4VVR7J8nlT7HU4s4w6EB8T+ZeRVd0PAvmNCtfurtA3:wxa+n7qIbI4PR7SlTrU4sP60Q+Z4z0Pw

    • 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