Here is a brief text you can use to warn others, or to keep as a reminder of how to handle these:
This looks like a subject line from a suspicious email, likely one containing a "phishing" link or a malicious attachment. The long string of random characters (a hash) is often used by scammers to bypass spam filters or create a false sense of technical urgency. Archivo de Descarga F91F800760A3C51970E94238166...
Avoid clicking any links or downloading attachments within the email. Here is a brief text you can use