General

  • Target
    Set-up_v25.6.exe
  • Size 783.7MB
  • Sample240615-3trynazend
  • SHA256 48530f667563a595c24f245c994484ca43c991cce4b77fd1dca8f7d486cbc389
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

rc4.plain

Targets

    • Target
      Set-up_v25.6.exe
    • Size 783.7MB
    • SHA256 48530f667563a595c24f245c994484ca43c991cce4b77fd1dca8f7d486cbc389
    • MD5 SHA1 SHA512 SSDEEP
    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Registers COM server for autorun

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

MITRE ATT&CK Enterprise v15

Tasks