General

  • Target

    966eb0f2f79f0e66ab2f04bcf726d9a4249d16225ab4f09e0c0d5a5397d33011

  • Size

    1.8MB

  • Sample

    240604-bx4m3shd32

  • MD5

    53e9cdf8bf1fd57909709ab84a3beec5

  • SHA1

    e8f0e526e25e8a940eca62aa32c9c410d7dd316c

  • SHA256

    966eb0f2f79f0e66ab2f04bcf726d9a4249d16225ab4f09e0c0d5a5397d33011

  • SHA512

    5bd1f256747b6c6acbfff64dfba235f60c50b4df51e3b96b6e60127e823ca96a8c38958ce5b71a481edeb39996bbdb80f0c4744c93a3b0b86e11c5347bfba5ca

  • SSDEEP

    24576:W7YfUB7F1931tbvYaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtbvYa8aesY3Ot4N7G/

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/ta904ek

https://steamcommunity.com/profiles/76561199695752269

Attributes
  • user_agent

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

Targets

    • Target

      966eb0f2f79f0e66ab2f04bcf726d9a4249d16225ab4f09e0c0d5a5397d33011

    • Size

      1.8MB

    • MD5

      53e9cdf8bf1fd57909709ab84a3beec5

    • SHA1

      e8f0e526e25e8a940eca62aa32c9c410d7dd316c

    • SHA256

      966eb0f2f79f0e66ab2f04bcf726d9a4249d16225ab4f09e0c0d5a5397d33011

    • SHA512

      5bd1f256747b6c6acbfff64dfba235f60c50b4df51e3b96b6e60127e823ca96a8c38958ce5b71a481edeb39996bbdb80f0c4744c93a3b0b86e11c5347bfba5ca

    • SSDEEP

      24576:W7YfUB7F1931tbvYaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtbvYa8aesY3Ot4N7G/

    • 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