General

  • Target

    link.txt

  • Size

    139B

  • Sample

    241111-vrcrysscml

  • MD5

    b158f6f6f236146dbb84f01382f7b288

  • SHA1

    6044e94429a90711f51626f628a3a9d51d4afd60

  • SHA256

    ac87f8dd3c4ffb6ebfebe7e23be8ec298263cb5103bdd180e156997db328c85c

  • SHA512

    9f52cd6d10066c7033c239494c513698ada42881768d23ad52785a3f787c53bbaafbc51e66806753e7b104c5d23c2a46eeed6d4740b5a0a9420bbbed85edefe9

Malware Config

Extracted

Family

vidar

Version

11.5

Botnet

8b94a7bcafb394a6cda231fd95b94a68

C2

https://t.me/gos90t

https://steamcommunity.com/profiles/76561199800374635

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Targets

    • Target

      link.txt

    • Size

      139B

    • MD5

      b158f6f6f236146dbb84f01382f7b288

    • SHA1

      6044e94429a90711f51626f628a3a9d51d4afd60

    • SHA256

      ac87f8dd3c4ffb6ebfebe7e23be8ec298263cb5103bdd180e156997db328c85c

    • SHA512

      9f52cd6d10066c7033c239494c513698ada42881768d23ad52785a3f787c53bbaafbc51e66806753e7b104c5d23c2a46eeed6d4740b5a0a9420bbbed85edefe9

    • Detect Vidar Stealer

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Downloads MZ/PE file

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks