General

  • Target

    b33e14c94015a17a33cd55a09bfc8d307d1e8c565955d58e8f2d9ea47cfb4652

  • Size

    2.2MB

  • Sample

    240625-q3313awfmn

  • MD5

    3443533517ca4db0c3e5275f0b1729ee

  • SHA1

    54116eab0231f81c9d4365eec2ab47081a2b2b94

  • SHA256

    b33e14c94015a17a33cd55a09bfc8d307d1e8c565955d58e8f2d9ea47cfb4652

  • SHA512

    916efe1f2930ca20ea248a236e360cc4ef66a446f03ef6dabcc879791a949f5fda2e7ff8e02067c1e43162b76e9b1e3546f66cfccbc186802746368af1754728

  • SSDEEP

    49152:lAgY7fvVtbBaxmcqMTBeSZKQl+bH4JbjzzEBETT29YMST:llY7nTMBTBeSZKQl+bYxzIBA6uMST

Malware Config

Extracted

Family

vidar

C2

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Targets

    • Target

      b33e14c94015a17a33cd55a09bfc8d307d1e8c565955d58e8f2d9ea47cfb4652

    • Size

      2.2MB

    • MD5

      3443533517ca4db0c3e5275f0b1729ee

    • SHA1

      54116eab0231f81c9d4365eec2ab47081a2b2b94

    • SHA256

      b33e14c94015a17a33cd55a09bfc8d307d1e8c565955d58e8f2d9ea47cfb4652

    • SHA512

      916efe1f2930ca20ea248a236e360cc4ef66a446f03ef6dabcc879791a949f5fda2e7ff8e02067c1e43162b76e9b1e3546f66cfccbc186802746368af1754728

    • SSDEEP

      49152:lAgY7fvVtbBaxmcqMTBeSZKQl+bH4JbjzzEBETT29YMST:llY7nTMBTBeSZKQl+bYxzIBA6uMST

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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