[TOMT] Paranormal activity like movie where girl is killed by demon in bathtub

[TOMT] I’m unable to recall a horror movie that came out around the same time as Paranormal Activity (2005-2012). Found footage horror movies were quite the rage back then. The film mostly takes place inside a house and the protagonists are siblings. The sister is the primary victim and the brother is filming with a handheld camera. It’s a demon possession story with increasingly violent paranormal stuff happening as the movie progresses, as is common in such films. I remember the film ending with the demon finally manifesting itself (though audience doesn’t see it) by killing the sister in a bathtub, naked with a visible wound in her stomach, while the last shot is of her brother running around the house to avoid the demon but also gets killed in the end. Does anyone know the name of this movie? I guess it even starts with Paranormal, but can’t remember. It wasn’t a very famous movie obviously.