General

  • Target

    4064eb708aa0dfb0ed7c50128ff9a6e9f67d7d77636abd01c1afb093b30770e8

  • Size

    1.8MB

  • Sample

    240604-yttd9shh4x

  • MD5

    c125a02347e4b86e8467434066012f63

  • SHA1

    cae8c7458c4b31027605360b1524dad4a88d1f2c

  • SHA256

    4064eb708aa0dfb0ed7c50128ff9a6e9f67d7d77636abd01c1afb093b30770e8

  • SHA512

    2068325799c13312653cb1b6bdda124be77c670c1de98671ad5846c6693aec2009bc3ebcdd607073df4c3bed96ad79c738ae09700429b02c13e9be12f3074e69

  • SSDEEP

    24576:l6z6AnPq5iak02HkUYaOV+rEfv0xwT3zxNOt4XigDSCuptNIeUaKUqm1zE:wer5l4kUYa8aesY3Ot4N7G/IeUAtK

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

      4064eb708aa0dfb0ed7c50128ff9a6e9f67d7d77636abd01c1afb093b30770e8

    • Size

      1.8MB

    • MD5

      c125a02347e4b86e8467434066012f63

    • SHA1

      cae8c7458c4b31027605360b1524dad4a88d1f2c

    • SHA256

      4064eb708aa0dfb0ed7c50128ff9a6e9f67d7d77636abd01c1afb093b30770e8

    • SHA512

      2068325799c13312653cb1b6bdda124be77c670c1de98671ad5846c6693aec2009bc3ebcdd607073df4c3bed96ad79c738ae09700429b02c13e9be12f3074e69

    • SSDEEP

      24576:l6z6AnPq5iak02HkUYaOV+rEfv0xwT3zxNOt4XigDSCuptNIeUaKUqm1zE:wer5l4kUYa8aesY3Ot4N7G/IeUAtK

    • 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