General

  • Target

    4cdbb7c468f742d54b5020752fadbbc2dcf5011d0dc0e6ad5c1e9218228af5de

  • Size

    1.8MB

  • Sample

    240603-j1zsasgg5t

  • MD5

    ca37826ddb2bf972d661479566180007

  • SHA1

    390abadf52c9ec55f10055734a342a13872d5328

  • SHA256

    4cdbb7c468f742d54b5020752fadbbc2dcf5011d0dc0e6ad5c1e9218228af5de

  • SHA512

    fd845d116e724392cc54fe17cb83493f0bd8bf29de6e177927a21f02dd523a5ab4ab87401942487db781df02a1d85a69a488dd79d1e1e84cf5b1daad091335c4

  • SSDEEP

    24576:W7YfUB7F1931tbxYaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtbxYa8aesY3Ot4N7G/

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

      4cdbb7c468f742d54b5020752fadbbc2dcf5011d0dc0e6ad5c1e9218228af5de

    • Size

      1.8MB

    • MD5

      ca37826ddb2bf972d661479566180007

    • SHA1

      390abadf52c9ec55f10055734a342a13872d5328

    • SHA256

      4cdbb7c468f742d54b5020752fadbbc2dcf5011d0dc0e6ad5c1e9218228af5de

    • SHA512

      fd845d116e724392cc54fe17cb83493f0bd8bf29de6e177927a21f02dd523a5ab4ab87401942487db781df02a1d85a69a488dd79d1e1e84cf5b1daad091335c4

    • SSDEEP

      24576:W7YfUB7F1931tbxYaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtbxYa8aesY3Ot4N7G/

    • 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