For the most secure experience, you should download directly from the official source:
It looks like you're referring to a version of Malwarebytes Premium, which is a modified or cracked version of the software. These types of downloads are risky and generally not recommended for several reasons:
Ransomware is one of the biggest threats to personal data. Malwarebytes employs behavioral monitoring technology to identify ransomware behavior—like mass file renaming or encryption—and terminates the threat immediately. Understanding "RePack by xetrin-So..."