General

  • Target

    46283c3ce66d2193ebefe976a00ecf4bfc129cc45a0737689cde66d4f696bb43

  • Size

    771KB

  • Sample

    210721-yvaztbzyaj

  • MD5

    ba51cc2ab8c0102587bf9d7932676b21

  • SHA1

    6eb2c22441680b99b6b6d9c03f4269c3eb1e8dd5

  • SHA256

    46283c3ce66d2193ebefe976a00ecf4bfc129cc45a0737689cde66d4f696bb43

  • SHA512

    1da6923bd7d1a76efd23d0e0a3b7bf1324ee7d6eaeaa89c6b6a49ccc1c8fda755c04da0d70f1bd787098ce283c26b0d4b28d40f7df829ff73742a10e4412569e

Malware Config

Extracted

Family

vidar

Version

39.6

Botnet

517

C2

https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    517

Targets

    • Target

      46283c3ce66d2193ebefe976a00ecf4bfc129cc45a0737689cde66d4f696bb43

    • Size

      771KB

    • MD5

      ba51cc2ab8c0102587bf9d7932676b21

    • SHA1

      6eb2c22441680b99b6b6d9c03f4269c3eb1e8dd5

    • SHA256

      46283c3ce66d2193ebefe976a00ecf4bfc129cc45a0737689cde66d4f696bb43

    • SHA512

      1da6923bd7d1a76efd23d0e0a3b7bf1324ee7d6eaeaa89c6b6a49ccc1c8fda755c04da0d70f1bd787098ce283c26b0d4b28d40f7df829ff73742a10e4412569e

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks