Found Footage Horror Movie about friends in the woods, a cult, and a demon...
I remember this movie when I was scrolling through Netflix way back in the early days when I was most likely 7 years old somewhere in the 2010s, and decided to watch some horror movies because I can. One of them was a found footage horror movie, similar to The Blair Witch Project and Blair Witch, about what I believe is a couple of friends going into the woods and getting stalked by a cult and maybe a demon. I could be incredibly wrong due to how fuzzy my memory was, but I remember clearly that there was a scene of a girl picking up a ladle and drinking some mysterious concoction and getting possessed in the process, and another one is how I believed the movie ended, with the guy filming the whole thing turning the camera around and saying something, probably a confession, probably an apology, I can't say for certain. It had haunted me for a long time, and I tried looking for it but got no leads... I also vaguely remember the poster being red with forest motifs, but a lot of horror movie posters are red, and the poster for Blair Witch could fit that, but I doubt it. Any idea what the movie was?
EDIT: ALRIGHT, I FOUND IT! It took me some time looking through Letterboxd to find it and looking through the Wikipedia article to see if it mentions it, but I found it! It was actually the movie "They're Watching" from 2016. The mysterious liquid from a "cauldron" was actually a vat of blood!