This is the little intro that start at 0:43 
E-------------------| 
B-------------------| 
G-------------------| 
D-9-8---6--6--6-----| 
A---------9--9------| 
E-------------------| 

Play Abm, E, Dbm and B normal as 4/4 and then F# quickly and repeat for all the song 

These are the chords: 

              Abm              E               Dbm                B               F# 
       E-----4----|----0-----|----4-----|----2-----|----2-----| 
       B-----4----|----0-----|----5-----|----4-----|----2-----| 
       G-----4----|----1-----|----6-----|----4-----|----3-----| 
       D-----6----|----2-----|----6-----|----4-----|----4-----| 
       A-----6----|----2-----|----4-----|----2-----|----4-----| 
       E-----4----|----0-----|----4-----|----2-----|----2-----| 

I think B it's not really correct, if you have some suggest write it in the comments