General

  • Target

    4fecc4aa08cc23bbd6b4cddfff607e150a3cb1c51dcef1458242fb7a212e9273

  • Size

    2.4MB

  • Sample

    240606-3w7f5afa47

  • MD5

    0a2ec887537ab68dbe4922ce5e6bb065

  • SHA1

    954bd23fda72a6be3c586c48b630dcdf386e6f70

  • SHA256

    4fecc4aa08cc23bbd6b4cddfff607e150a3cb1c51dcef1458242fb7a212e9273

  • SHA512

    c49a61360a7fdc014f33e9a3e7b288a53df5cd826591ead3d49e82e3c806c6f28828c1f05a9f937721290e28f739d8c6a80a92653a0cbd4921027ccc506b8d90

  • SSDEEP

    49152:wQc81KnB/a/hNT/dxYa8aesY3Ot4N7G/:wDta/hNT/dxn0etD/

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

      4fecc4aa08cc23bbd6b4cddfff607e150a3cb1c51dcef1458242fb7a212e9273

    • Size

      2.4MB

    • MD5

      0a2ec887537ab68dbe4922ce5e6bb065

    • SHA1

      954bd23fda72a6be3c586c48b630dcdf386e6f70

    • SHA256

      4fecc4aa08cc23bbd6b4cddfff607e150a3cb1c51dcef1458242fb7a212e9273

    • SHA512

      c49a61360a7fdc014f33e9a3e7b288a53df5cd826591ead3d49e82e3c806c6f28828c1f05a9f937721290e28f739d8c6a80a92653a0cbd4921027ccc506b8d90

    • SSDEEP

      49152:wQc81KnB/a/hNT/dxYa8aesY3Ot4N7G/:wDta/hNT/dxn0etD/

    • 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