General

  • Target

    38d16dccfd335cf95f05ab43376b79a0f6f622a8252cc96b33c68fc5a263f8b8

  • Size

    2.1MB

  • Sample

    240613-n3psbsxeqb

  • MD5

    c49af08976d8324f556866373969b576

  • SHA1

    c4334b02493de064d9d26f5f482d24670bf7c343

  • SHA256

    38d16dccfd335cf95f05ab43376b79a0f6f622a8252cc96b33c68fc5a263f8b8

  • SHA512

    3d85e000b517e935023dbadb7e86f027e3e280c3b090eab9dea3159e0b38398f32a7bfb0e8a3a7329703b2adaf59b072920cced88a4262338a35473119cf86c2

  • SSDEEP

    24576:Ub4m+sws1qLVNMIlJl6DRKbAlcNRfCKFUfMxVVtes12FxwojKr98YGeGG9iO:UZXOjt6DuAwCKFUkxVVChjHZQs

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

      38d16dccfd335cf95f05ab43376b79a0f6f622a8252cc96b33c68fc5a263f8b8

    • Size

      2.1MB

    • MD5

      c49af08976d8324f556866373969b576

    • SHA1

      c4334b02493de064d9d26f5f482d24670bf7c343

    • SHA256

      38d16dccfd335cf95f05ab43376b79a0f6f622a8252cc96b33c68fc5a263f8b8

    • SHA512

      3d85e000b517e935023dbadb7e86f027e3e280c3b090eab9dea3159e0b38398f32a7bfb0e8a3a7329703b2adaf59b072920cced88a4262338a35473119cf86c2

    • SSDEEP

      24576:Ub4m+sws1qLVNMIlJl6DRKbAlcNRfCKFUfMxVVtes12FxwojKr98YGeGG9iO:UZXOjt6DuAwCKFUkxVVChjHZQs

    • 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