General

  • Target

    fb371a0bf9bd2437bfeb1e15335f35f60f071662c0c6a1d3b9abd1359ad85c93.exe

  • Size

    403KB

  • Sample

    240925-dbkn7a1arn

  • MD5

    477f0641023c28b462ea3d1b0a62151d

  • SHA1

    d1e3eaa36f07796995c4ad192754bfebc20778dc

  • SHA256

    fb371a0bf9bd2437bfeb1e15335f35f60f071662c0c6a1d3b9abd1359ad85c93

  • SHA512

    08b6a37518fcc0f018375b33db4911da6f3111c9b3d9f621c15e584dc4823ec7ba613d01fb37793c4a8bea950c3b523a8ef092a73451c5e1cda35352e37c6dea

  • SSDEEP

    12288:Dlu1SX7Sor999NBAlAdwefOixMORgj8cn7dy7zLsEO:o1SLzr1AlqdfrbuIOBygt

Malware Config

Extracted

Family

vidar

Version

11

Botnet

58cd250b15e666e5f72fcf5caa6cb131

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

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

Extracted

Family

lumma

C2

https://stogeneratmns.shop/api

Targets

    • Target

      fb371a0bf9bd2437bfeb1e15335f35f60f071662c0c6a1d3b9abd1359ad85c93.exe

    • Size

      403KB

    • MD5

      477f0641023c28b462ea3d1b0a62151d

    • SHA1

      d1e3eaa36f07796995c4ad192754bfebc20778dc

    • SHA256

      fb371a0bf9bd2437bfeb1e15335f35f60f071662c0c6a1d3b9abd1359ad85c93

    • SHA512

      08b6a37518fcc0f018375b33db4911da6f3111c9b3d9f621c15e584dc4823ec7ba613d01fb37793c4a8bea950c3b523a8ef092a73451c5e1cda35352e37c6dea

    • SSDEEP

      12288:Dlu1SX7Sor999NBAlAdwefOixMORgj8cn7dy7zLsEO:o1SLzr1AlqdfrbuIOBygt

    • Detect Vidar Stealer

    • Lumma Stealer, LummaC

      Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

    • Stealc

      Stealc is an infostealer written in C++.

    • 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.

    • 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