Marduk - Coram satanae (unofficial? video)

I think this is unofficial video, but I have no diea wheres this footage taken from. Song is a bonus from Marduk's latest album "Serpent Sermon" (2012). Lovin' this song so much. It has this old school melodic coldness written all over it. Reminds me of Satyricon's "Mother North" for example!