General

  • Target
    813ae10870c459bcf6aaa22b64b4770020f85abf27c6d0de2e85daa0eac642ae.zip
  • Size 4.4MB
  • Sample260809-sycdnatvbv
  • SHA256 38454bc8c06812a0226945cbcf3a8f97005f12a2c3f5e9816f71fd751a9fac09
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      813ae10870c459bcf6aaa22b64b4770020f85abf27c6d0de2e85daa0eac642ae
    • Size 10.5MB
    • SHA256 813ae10870c459bcf6aaa22b64b4770020f85abf27c6d0de2e85daa0eac642ae
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects Vryxen stealer

    • Family: Vryxen

      Vryxen is an open-source stealer written in Golang.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Disables one or more Microsoft Defender components

      Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • Adds Run key to start application

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Detect suspicious telegram bot

      Detect suspicious telegram bot.

    • Discovers running processes

      Running process information can be used to identify security tools or plan follow-on actions.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks