Part of macOS
ReportCrashCrash reports
○ Leave it
Writes reports when an app crashes or hangs.
What it is
Saves crash and diagnostic reports, and sends them to Apple only if you agreed to share analytics.
If you stop it
macOS starts it again straight away. Leave it.
The verdict
○ Leave it. Part of macOS, or something that starts again by itself. You never need to close these.
In Activity Monitor
ReportCrashosanalyticshelperCrashReporterSupportHelperSubmitDiagInfoanalyticsdanalyticsagent
From Procession’s guide, in the words the app shows.