General

  • Target

    4f6f8e9717f45d144a67e3f1d72a460689e9caf5b512d5cc049becdd47e00422

  • Size

    2.4MB

  • Sample

    240606-3w5brsdh8y

  • MD5

    6efe4a13382520746395ceda86d03e8b

  • SHA1

    988ce3819d648fc038459bd253be5e9ef550f4f0

  • SHA256

    4f6f8e9717f45d144a67e3f1d72a460689e9caf5b512d5cc049becdd47e00422

  • SHA512

    c8257ecdf26ca82fb27dae8871a4520aa10927f175e9d78663b507be096ad9a36a0f4cfe5a23136feea10afc55c78f941fa52cd082c36e97c262e0be2c04855b

  • SSDEEP

    49152:wQc81KnB/a/hNT/dlYa8aesY3Ot4N7G/:wDta/hNT/dln0etD/

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

      4f6f8e9717f45d144a67e3f1d72a460689e9caf5b512d5cc049becdd47e00422

    • Size

      2.4MB

    • MD5

      6efe4a13382520746395ceda86d03e8b

    • SHA1

      988ce3819d648fc038459bd253be5e9ef550f4f0

    • SHA256

      4f6f8e9717f45d144a67e3f1d72a460689e9caf5b512d5cc049becdd47e00422

    • SHA512

      c8257ecdf26ca82fb27dae8871a4520aa10927f175e9d78663b507be096ad9a36a0f4cfe5a23136feea10afc55c78f941fa52cd082c36e97c262e0be2c04855b

    • SSDEEP

      49152:wQc81KnB/a/hNT/dlYa8aesY3Ot4N7G/:wDta/hNT/dln0etD/

    • 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

    • Loads dropped DLL

    • 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