Most original Memz 4.0 hosting links (Dropbox, MediaFire, Discord CDN) have been dead for years. The live links you find on random sites like virusdownloadforfree(dot)xyz or mega(dot)nz/#!randomstring are almost certainly one of the following:
I downloaded “Memz 4.0 Clean Edition” from a popular YouTube tutorial link last month (for research in a sandbox). The hash didn’t match any known Memz signatures. Behavioral analysis showed it beaconing to a C2 server in Bulgaria. The actual Memz payload was embedded as a resource—but only after the stealer ran. Memz 4.0 Clean Download