General

  • Target

    f99ba4d3fba1a9b6e54c292742ff15fe76b41df14bf6a912baa3ec333c822540

  • Size

    1.8MB

  • Sample

    240603-lcla4sbc42

  • MD5

    d329b2db7b8d5a5f0c8987f05cf9f17f

  • SHA1

    c6426883b019044dfb07bff9c491284f579eaaa8

  • SHA256

    f99ba4d3fba1a9b6e54c292742ff15fe76b41df14bf6a912baa3ec333c822540

  • SHA512

    e102f645eb3384fda40a55efaf17854526e50c40af23eb8ed6b0096f31007a99c385209bbcf1de331c82d478c2c2f2679ae9c92bf975e06be6067b30960a65f9

  • SSDEEP

    24576:W7YfUB7F1931tb5YaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtb5Ya8aesY3Ot4N7G/

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

      f99ba4d3fba1a9b6e54c292742ff15fe76b41df14bf6a912baa3ec333c822540

    • Size

      1.8MB

    • MD5

      d329b2db7b8d5a5f0c8987f05cf9f17f

    • SHA1

      c6426883b019044dfb07bff9c491284f579eaaa8

    • SHA256

      f99ba4d3fba1a9b6e54c292742ff15fe76b41df14bf6a912baa3ec333c822540

    • SHA512

      e102f645eb3384fda40a55efaf17854526e50c40af23eb8ed6b0096f31007a99c385209bbcf1de331c82d478c2c2f2679ae9c92bf975e06be6067b30960a65f9

    • SSDEEP

      24576:W7YfUB7F1931tb5YaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtb5Ya8aesY3Ot4N7G/

    • 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