General

  • Target

    86e5b98bc1b2da1bd637438f792d0c7c16311c796e69f0c73cd1318b48f16663

  • Size

    2.2MB

  • Sample

    240628-z8by7svgrr

  • MD5

    2558719c7137278caf24c8bd7760dc08

  • SHA1

    df2a40ed7c7782eae6d7d01fd12db2a4e25ba0f0

  • SHA256

    86e5b98bc1b2da1bd637438f792d0c7c16311c796e69f0c73cd1318b48f16663

  • SHA512

    7d9d7e0eebdfbcc9f5ae2cf8e1864e44083a912dee11e3e036cdbe3287a60bef301062c76a4fae7b0b6f27665c5136c5e748920ee69b9e21be0d7a8e0b6d714f

  • SSDEEP

    49152:qpjNvr9ySAOmw49HHO+SASagXkJr4MDkUwm:qpjNp7p49HH8n5A

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

      86e5b98bc1b2da1bd637438f792d0c7c16311c796e69f0c73cd1318b48f16663

    • Size

      2.2MB

    • MD5

      2558719c7137278caf24c8bd7760dc08

    • SHA1

      df2a40ed7c7782eae6d7d01fd12db2a4e25ba0f0

    • SHA256

      86e5b98bc1b2da1bd637438f792d0c7c16311c796e69f0c73cd1318b48f16663

    • SHA512

      7d9d7e0eebdfbcc9f5ae2cf8e1864e44083a912dee11e3e036cdbe3287a60bef301062c76a4fae7b0b6f27665c5136c5e748920ee69b9e21be0d7a8e0b6d714f

    • SSDEEP

      49152:qpjNvr9ySAOmw49HHO+SASagXkJr4MDkUwm:qpjNp7p49HH8n5A

    • 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.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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