General

  • Target

    file.exe

  • Size

    403KB

  • Sample

    240925-az7xvaxekh

  • MD5

    fdd34557ce266b92abb5f2c188bc0b31

  • SHA1

    6e3ed4a740842653f6029e2147652d779baa40aa

  • SHA256

    a383f198e76031c2defef77e3b68119cce7eca4b64d3afcc477610c3399373aa

  • SHA512

    313abe34a6d22e4e5aa66d45f7454207d671e214037932442641671beea0b1787f0cfb40988a5ba8e6f524af0ede974ed97b80ecb2888ed99a723403bc9eaa9d

  • SSDEEP

    12288:mPy6bZeOTlVMMIEY3kVQWk5ogbr/ojdiEO:aDJTHlIEYpWg3/o8t

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

lumma

C2

https://stogeneratmns.shop/api

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

      file.exe

    • Size

      403KB

    • MD5

      fdd34557ce266b92abb5f2c188bc0b31

    • SHA1

      6e3ed4a740842653f6029e2147652d779baa40aa

    • SHA256

      a383f198e76031c2defef77e3b68119cce7eca4b64d3afcc477610c3399373aa

    • SHA512

      313abe34a6d22e4e5aa66d45f7454207d671e214037932442641671beea0b1787f0cfb40988a5ba8e6f524af0ede974ed97b80ecb2888ed99a723403bc9eaa9d

    • SSDEEP

      12288:mPy6bZeOTlVMMIEY3kVQWk5ogbr/ojdiEO:aDJTHlIEYpWg3/o8t

    • 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