The EC-Council actively protects its intellectual property. The CEH courseware, exam guides, and lab manuals are copyrighted materials. Downloading a pirated PDF is a violation of copyright law in almost every jurisdiction (Digital Millennium Copyright Act in the US, Copyright Designs and Patents Act in the UK, etc.).
Even if you manage to find a PDF that claims to be "CEH v12," it is likely a fake. Version 12 is dynamic. EC-Council updates the modules quarterly based on emerging threats. A static PDF from a torrent site from six months ago is already missing crucial updates regarding new ransomware variants or cloud vulnerabilities. download ceh v12 pdf