General

  • Target

    3b3b5c1b79da78cf3dd4f37df3bd34843a6914b446a2c6fc393e61190878795f

  • Size

    2.4MB

  • Sample

    240601-wsetdaae7x

  • MD5

    b0f66b49afcea9864210f86db195b5f0

  • SHA1

    d8a00b7fd3c79bb846fc2dbcd584be204f2401b1

  • SHA256

    3b3b5c1b79da78cf3dd4f37df3bd34843a6914b446a2c6fc393e61190878795f

  • SHA512

    326929e8129e093dc2de59e22dc29820f8c65043522421413ed2aa9e869e9882c2e5fd464b0222dbddc9f85851901b0f5d9bff825bc6cf7d39a1965e50a00035

  • SSDEEP

    49152:wQc81KnB/a/hNT/dRYa8aesY3Ot4N7G/:wDta/hNT/dRn0etD/

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

      3b3b5c1b79da78cf3dd4f37df3bd34843a6914b446a2c6fc393e61190878795f

    • Size

      2.4MB

    • MD5

      b0f66b49afcea9864210f86db195b5f0

    • SHA1

      d8a00b7fd3c79bb846fc2dbcd584be204f2401b1

    • SHA256

      3b3b5c1b79da78cf3dd4f37df3bd34843a6914b446a2c6fc393e61190878795f

    • SHA512

      326929e8129e093dc2de59e22dc29820f8c65043522421413ed2aa9e869e9882c2e5fd464b0222dbddc9f85851901b0f5d9bff825bc6cf7d39a1965e50a00035

    • SSDEEP

      49152:wQc81KnB/a/hNT/dRYa8aesY3Ot4N7G/:wDta/hNT/dRn0etD/

    • 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