Run it through your antivirus or upload it to VirusTotal.
Files like 72KUQaWrg6Wa1L3qKMio.zip aren't usually named by humans. They are typically the product of: 72KUQaWrg6Wa1L3qKMio.zip
Look at the "Date Created." Does it align with that trip to Vegas or that frantic work project? Run it through your antivirus or upload it to VirusTotal