Text from my iPhone sent but I did not send

I received a text from my son with a screen shot asking if I “meant” to send this message. As I was out working in the yard I knew I had not sent a text. However upon retrieving my phone a text went out from my phone to a bizarre list of contacts. Some of the contacts are mine but a couple of the contacts listed are not in my phone. Message was nonsensical and there was an Apple.com attachment. Screen shot below of the text sent and the three (3) contact names that are unknown to me but listed as recipients for this random bizarre message were identified as oulli, pollkne, and wlsolouslpaari’llpull. Never seen nor heard of the “contact names”