Looking for a lost url to a short sci-fi movie (possibly named red cube?)

Im looking for a url to this short movie, possibly named “red cube” or something very similar.. It was really popular (on front page of digg/reddit) like a month ago. I belive it was german made. Some guy had this cube, he pressed it and some ‘half-life’-esque scenario started. There was this beam coming down from the sky (like independence day), he ran from soldiers in gas masks, and tried using his cell phone but the battery was dead.
If you know the url (or remember what the movie was called) i’d be very grateful. Tyvm /renskav