Could you help me find this short film related to witches?

So, I saw it a couple of years ago, and tried to find it today but it is turning out to be really REALLY hard to find.

The short film was about a group of girls that take one to the forest for what seems like an initiation ritual or rite of passage.... the girl has to enter into the forest and leave something inside a certain area.... the girl should have left hair or clothes but some whispers that start resonating convince her to cut her hand instead and offer blood. The thing is that then is like the girl gets possessed and kills the other girl and drives away on the ban they arrived to the site.