Some systems generate random strings to ensure file names don't overlap.
When you encounter a file with a non-descriptive, alphanumeric name like this, it often points to one of three things:
If you didn't specifically request this file from a trusted developer or official site, do not download it.
Even if the name is a "zip," the actual file inside could be an .exe or .scr (executable scripts) designed to install unwanted software.