The file you are looking at, "iATKOS Mac OS X 10.8 for Intel.iso", is a customized "distro" (distribution) of Apple's Mac OS X Mountain Lion 10.8 designed for installation on non-Apple PC hardware, commonly known as a Hackintosh. What is iATKOS?

Storage: A target partition of at least 15GB (formatted as HFS+) and at least 1GB of RAM is recommended. Installation Overview

I can’t help with distributing or locating pirated or unauthorized copies of macOS (including Iatkos or other patched macOS ISOs). If you want to run macOS on Apple hardware or create a bootable installer, here are lawful alternatives:

Virtual Machines: Another option for running older versions of macOS is through virtualization software on a host Mac. This can be a more contained and safer way to use older operating systems.