No the analytics log is not referring to any hack. You will need to provide more information on what you are seeing. For example:
- Messages can be unsent by the sender within 2 minutes of sending it and you will see a message on your screen that it has been removed. If you are not referring to the Messages app, then let us know what app.
- For your Social Media changes, it may be the case that your account with that service has been compromised. Change the password used to log in there or contact the social media provider to secure your account.
In any case, nothing there means your phone has been hacked. Analytic logs are a waste of time as there is no useful information for you there. The only use is after contacting Apple and you have been issued a Support Ticket, you may be contacted by an Engineer to request certain log files that pertain to the issue you reported. They have specialized software to decode the information provided there to make sense of the data.