General

  • Target

    file.exe

  • Size

    868KB

  • Sample

    240710-kczm3ayhqe

  • MD5

    385f7a96f7f1d70235288031e0485f55

  • SHA1

    64bbe059b28167cdc00ff7d4c9d4aeb1767cacd4

  • SHA256

    be4b5edb41c224f0f4a7af5089f5def3857599c06f2ff47f307cd6238b9db852

  • SHA512

    38dbf5bdef73c7d771c05b958a8725de3d0db8d211df274db27553fbcb85ac15e007a2bf52dfdadb5de250c78e40aeb2d80427f421ccd6ba0c2ebfaefed3e928

  • SSDEEP

    24576:hwojq0vhlmRUMw1NGj1OB6RMRvrARHUDLG045:6P0ZcbUNGjlhtOP45

Malware Config

Extracted

Family

vidar

C2

https://t.me/bu77un

https://steamcommunity.com/profiles/76561199730044335

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.1) Gecko/20100101 Firefox/128.1

Targets

    • Target

      file.exe

    • Size

      868KB

    • MD5

      385f7a96f7f1d70235288031e0485f55

    • SHA1

      64bbe059b28167cdc00ff7d4c9d4aeb1767cacd4

    • SHA256

      be4b5edb41c224f0f4a7af5089f5def3857599c06f2ff47f307cd6238b9db852

    • SHA512

      38dbf5bdef73c7d771c05b958a8725de3d0db8d211df274db27553fbcb85ac15e007a2bf52dfdadb5de250c78e40aeb2d80427f421ccd6ba0c2ebfaefed3e928

    • SSDEEP

      24576:hwojq0vhlmRUMw1NGj1OB6RMRvrARHUDLG045:6P0ZcbUNGjlhtOP45

    • 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

    • 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.

    • 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.

MITRE ATT&CK Enterprise v15

Tasks