I think someone may have used my number somehow?

Some random number texted me asking "who is this?" And I asked who they were because they texted first. They said "i don't know you texted me first worth's photo. But it's a download and I can't open it." But I didn't see a photo or a text from me anywheee and I don't remember sending anything. I thought it may have been some random scammer because I signed up signed up for this thing with my number a few days ago but then I asked who the person texting was and it was someone I knew from school… So now I'm not sure if someone hacked my iCloud or something. If someone can explain i would like help investigating. I think someone may have used my number somehow

He is pretending, don't fall into his trap and block him

I don't know but this literally happened to me too a few months back. I thought that was me for a second lol. It's not btw.

It is a scam either way. Numbers are easy to spoof. Someone could have spoofed your number and then sent this person a text message with the download. Or this person is trying to pull a scam on you by messaging you first and then asking something of you.

Just drop the whole thing and ignore it.