General

  • Target

    7277a72c5a7806417b0049f540061b1d46538f1cdf2dbb9d1a6a3310f9dc6d6c

  • Size

    2.5MB

  • Sample

    240607-ms8xsafa6s

  • MD5

    4bf2aa24619081de4cea2bfabbc011ad

  • SHA1

    f21c5956ad8262f187830c563dd96fbb2fdee951

  • SHA256

    7277a72c5a7806417b0049f540061b1d46538f1cdf2dbb9d1a6a3310f9dc6d6c

  • SHA512

    30bd8193259dcb46498503c745f304f75992dd4e9c60ac538d80be3a7a3386951892a93e6b48c4c9c43931d9d17ab9b926bd202a86f4a948264eb74b0c11febb

  • SSDEEP

    49152:Zcm4081qpZBUbHEmJHsEAQACR07Q3byRD8aXY658:ZcmmqvBUbHtRfAw07QLyLn

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/r8z0l

https://steamcommunity.com/profiles/76561199698764354

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      7277a72c5a7806417b0049f540061b1d46538f1cdf2dbb9d1a6a3310f9dc6d6c

    • Size

      2.5MB

    • MD5

      4bf2aa24619081de4cea2bfabbc011ad

    • SHA1

      f21c5956ad8262f187830c563dd96fbb2fdee951

    • SHA256

      7277a72c5a7806417b0049f540061b1d46538f1cdf2dbb9d1a6a3310f9dc6d6c

    • SHA512

      30bd8193259dcb46498503c745f304f75992dd4e9c60ac538d80be3a7a3386951892a93e6b48c4c9c43931d9d17ab9b926bd202a86f4a948264eb74b0c11febb

    • SSDEEP

      49152:Zcm4081qpZBUbHEmJHsEAQACR07Q3byRD8aXY658:ZcmmqvBUbHtRfAw07QLyLn

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks