General

  • Target

    file.exe

  • Size

    135KB

  • Sample

    240916-jen4nswclj

  • MD5

    458d31ecc5a490d5bda8d52e7ca8a5b6

  • SHA1

    213aac6538f2d98169f655d2252a13f50e6f31a5

  • SHA256

    d574de9b5d8f74451207c6b4f2b6f63e1b58f8d8f50dc03a722638c866a41f50

  • SHA512

    a3dfdf74773a7f195e26e4225f79394664d808777f50cbadc4571e36b55aab8c4c6864fbc02ab83378aa1904a403ef2915c98585d541f0babb324b28bf56bb2b

  • SSDEEP

    3072:f5zF1UvqLHTCCrSIpnwF8vIzKJjGjssSDrI8pSQbAAmVBVa5GKYzEO:71zLN+WvnHsSv1zJmV2SEO

Malware Config

Extracted

Family

vidar

C2

https://t.me/edm0d

https://steamcommunity.com/profiles/76561199768374681

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Extracted

Family

stealc

Botnet

default

C2

http://46.8.231.109

Attributes
  • url_path

    /c4754d4f680ead72.php

Targets

    • Target

      file.exe

    • Size

      135KB

    • MD5

      458d31ecc5a490d5bda8d52e7ca8a5b6

    • SHA1

      213aac6538f2d98169f655d2252a13f50e6f31a5

    • SHA256

      d574de9b5d8f74451207c6b4f2b6f63e1b58f8d8f50dc03a722638c866a41f50

    • SHA512

      a3dfdf74773a7f195e26e4225f79394664d808777f50cbadc4571e36b55aab8c4c6864fbc02ab83378aa1904a403ef2915c98585d541f0babb324b28bf56bb2b

    • SSDEEP

      3072:f5zF1UvqLHTCCrSIpnwF8vIzKJjGjssSDrI8pSQbAAmVBVa5GKYzEO:71zLN+WvnHsSv1zJmV2SEO

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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 v15

Tasks