General

  • Target

    6a5143bed41663ec72ec3177924593930af0300819f51203c46309fc610a623c

  • Size

    2.2MB

  • Sample

    240625-z3z4vatdme

  • MD5

    d79d633b0aee77da9a629ab26c3208e4

  • SHA1

    4b30d642668711c0a8878f4d826772303e2e4750

  • SHA256

    6a5143bed41663ec72ec3177924593930af0300819f51203c46309fc610a623c

  • SHA512

    3268aaf044616601458418991d6c72d8cb7a24e9790caa0e0ffcf1cbc6a651f8ef9d0bb97da31339b66a2faea7827de8d07e6493c50c9fa92ff48b56b8bb5ce7

  • SSDEEP

    49152:lAgY7fvVtbBaxmcqMTBeurKQl+bH4JbjzzEBETT29YMST:llY7nTMBTBeurKQl+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

      6a5143bed41663ec72ec3177924593930af0300819f51203c46309fc610a623c

    • Size

      2.2MB

    • MD5

      d79d633b0aee77da9a629ab26c3208e4

    • SHA1

      4b30d642668711c0a8878f4d826772303e2e4750

    • SHA256

      6a5143bed41663ec72ec3177924593930af0300819f51203c46309fc610a623c

    • SHA512

      3268aaf044616601458418991d6c72d8cb7a24e9790caa0e0ffcf1cbc6a651f8ef9d0bb97da31339b66a2faea7827de8d07e6493c50c9fa92ff48b56b8bb5ce7

    • SSDEEP

      49152:lAgY7fvVtbBaxmcqMTBeurKQl+bH4JbjzzEBETT29YMST:llY7nTMBTBeurKQl+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.

    • 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