General

  • Target

    8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa

  • Size

    2.0MB

  • Sample

    240525-fj37lsfa7z

  • MD5

    40e7ff44884592b0085a242b51824806

  • SHA1

    1e453cd0506933dde3bfaf9f821cb8f404118c56

  • SHA256

    8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa

  • SHA512

    a05995d62d0d8cb596bebb1937203db1d5be01329f9df6fc3accfd46ac37dc9390d8824b383d995cb5cd6c446d4783e105f25cca183a2dd6396fcdf7551de3be

  • SSDEEP

    49152:s4K3x1vUyJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18ytIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes
  • user_agent

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

Targets

    • Target

      8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa

    • Size

      2.0MB

    • MD5

      40e7ff44884592b0085a242b51824806

    • SHA1

      1e453cd0506933dde3bfaf9f821cb8f404118c56

    • SHA256

      8d3d0b068c53a267be316e9c3df958579552ec2e2fccafcba7e8d74f570e2baa

    • SHA512

      a05995d62d0d8cb596bebb1937203db1d5be01329f9df6fc3accfd46ac37dc9390d8824b383d995cb5cd6c446d4783e105f25cca183a2dd6396fcdf7551de3be

    • SSDEEP

      49152:s4K3x1vUyJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18ytIuoITsdZ

    • 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