General

  • Target

    c4c11a6fc7cc96642db08d63f452d598401e7fc61acc91f3fb9a4c3c92963444

  • Size

    2.4MB

  • Sample

    240603-gtknpafc87

  • MD5

    67e3383608db26a2ecbfdd55d7b4de16

  • SHA1

    c9ef2d588633c3fccd75d80e50884e9f8a893fd0

  • SHA256

    c4c11a6fc7cc96642db08d63f452d598401e7fc61acc91f3fb9a4c3c92963444

  • SHA512

    7640444bd54869f435ab5744790df90394f98d1189c5285c11d57e8a9ecbc5c8ede8956f40ba0cfdcd4cf0e0274686c01b7d4730eec393c1359c7a642c3260da

  • SSDEEP

    49152:wQc81KnB/a/hNT/dhYa8aesY3Ot4N7G/:wDta/hNT/dhn0etD/

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

      c4c11a6fc7cc96642db08d63f452d598401e7fc61acc91f3fb9a4c3c92963444

    • Size

      2.4MB

    • MD5

      67e3383608db26a2ecbfdd55d7b4de16

    • SHA1

      c9ef2d588633c3fccd75d80e50884e9f8a893fd0

    • SHA256

      c4c11a6fc7cc96642db08d63f452d598401e7fc61acc91f3fb9a4c3c92963444

    • SHA512

      7640444bd54869f435ab5744790df90394f98d1189c5285c11d57e8a9ecbc5c8ede8956f40ba0cfdcd4cf0e0274686c01b7d4730eec393c1359c7a642c3260da

    • SSDEEP

      49152:wQc81KnB/a/hNT/dhYa8aesY3Ot4N7G/:wDta/hNT/dhn0etD/

    • 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