General

  • Target

    a893e20fea08c8615de1775ad3559ea6eff35b5ec3b1ab6f463924285a84f47fN

  • Size

    216KB

  • Sample

    240923-pk9kfswemp

  • MD5

    ea754070163f8eca914b259096d834f0

  • SHA1

    cebf2eccad67deaf6ac9b8dc71118ad474b16868

  • SHA256

    a893e20fea08c8615de1775ad3559ea6eff35b5ec3b1ab6f463924285a84f47f

  • SHA512

    2a75b505780c6670204f5c4e2818bb1b027c88e98c9c45dde39aed786afaeff60215afb278fdd89eed58639c9eccf901836da4329d3c62c03911992b923ca225

  • SSDEEP

    6144:I/NKt5fv5P2tInQP5loWIUKp6KgjfOc2PEO:IFuxv5OinA5lJQ6Kgb6EO

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://46.8.231.109

Attributes
  • url_path

    /c4754d4f680ead72.php

Extracted

Family

vidar

Version

11

Botnet

3a15237aa92dcd8ccca447211fb5fc2a

C2

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Targets

    • Target

      a893e20fea08c8615de1775ad3559ea6eff35b5ec3b1ab6f463924285a84f47fN

    • Size

      216KB

    • MD5

      ea754070163f8eca914b259096d834f0

    • SHA1

      cebf2eccad67deaf6ac9b8dc71118ad474b16868

    • SHA256

      a893e20fea08c8615de1775ad3559ea6eff35b5ec3b1ab6f463924285a84f47f

    • SHA512

      2a75b505780c6670204f5c4e2818bb1b027c88e98c9c45dde39aed786afaeff60215afb278fdd89eed58639c9eccf901836da4329d3c62c03911992b923ca225

    • SSDEEP

      6144:I/NKt5fv5P2tInQP5loWIUKp6KgjfOc2PEO:IFuxv5OinA5lJQ6Kgb6EO

    • 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.

    • Drops startup file

    • 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

    • 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 v15

Tasks