This isn't a pure copy of macOS. The Hackintosh Zone distros are notorious for modifying the system files. They often come with pre-installed applications that the creator deemed useful, but which many users consider bloatware. You are essentially trusting an unknown third party not to inject malicious code into your operating system.
Hackintosh Zone, formerly known as Niresh, provided modified macOS installers (distributions or "distros") like the Sierra Zone DMG Macos Sierra Hackintosh Zone Dmg Download
: Pre-made images can potentially include unverified software or malware. This isn't a pure copy of macOS