Files with long, encoded strings in the name often come from "warez" sites. These can sometimes contain injected malware or trackers.
Open AltStore on the phone, go to the "My Apps" tab, tap the icon, and select the IPA file to install it using your Apple ID. Sideloadly: Files with long, encoded strings in the name
The string you provided appears to be a specific filename for an (an iOS application package), likely sourced from a third-party archive or a "cracked" app repository. Files with long