General

  • Target

    f71dfafde7ad99247c2fb6149f9a6ef914f5147fc290158cc00586a78d3cd87a

  • Size

    770KB

  • Sample

    210721-ap12jsq66s

  • MD5

    28cdf202c7ffb4bd3abdceac17a07a70

  • SHA1

    dbeb40f476c3ce5ed7e12923aebd84e849e75bcd

  • SHA256

    f71dfafde7ad99247c2fb6149f9a6ef914f5147fc290158cc00586a78d3cd87a

  • SHA512

    e651a50b2ece4fd773c1df5d5e6a5727d7b561d0d9faa66bf59f842e34f9f1ca87f2cbb38c47b853753e29b4f34a155e18af9ae3316bb2505fdfff3969925fca

Malware Config

Extracted

Family

vidar

Version

39.6

Botnet

517

C2

https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    517

Targets

    • Target

      f71dfafde7ad99247c2fb6149f9a6ef914f5147fc290158cc00586a78d3cd87a

    • Size

      770KB

    • MD5

      28cdf202c7ffb4bd3abdceac17a07a70

    • SHA1

      dbeb40f476c3ce5ed7e12923aebd84e849e75bcd

    • SHA256

      f71dfafde7ad99247c2fb6149f9a6ef914f5147fc290158cc00586a78d3cd87a

    • SHA512

      e651a50b2ece4fd773c1df5d5e6a5727d7b561d0d9faa66bf59f842e34f9f1ca87f2cbb38c47b853753e29b4f34a155e18af9ae3316bb2505fdfff3969925fca

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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