You might want to want take a look there: http://www.head-fi.org/t/531418/possibly-fake-sony-7509hd-but-how-do-i-tell
it is quite weird that "professional" sticker in second photo is a bit angular.
EDIT: Probably fake, here's photo of genuine cans ( compare stickers) :

And your photo:

BTW, it is quite obvious now, that plastic on these is very cheap..
EDIT2: Ok it seems that tehse have a million of different models, and blue/yellow sticker is possible also on genuine ones, lol.
But still, I doubt that original one would be so uneven attached and the the plastic looks horrible. What, is more, interesting how heavily the saturation of these photos were modified... There should be a reason for that.
PS. It should look like this:

EDIT3:
There's literally millions of the same model cans with different plastic and stickers... So even now it's hard to tell for sure until you open them, looks like sony wanted these heaphones to be faked, lol. I peronally, wouldn't take a risk as it's more likely to be fake than a genuine one...
is this http://en.audiofanzine.com/headphone/sony/MDR-7509-HD/medias/pictures/a.play,m.327596.html original packaging? Doesn't look like one (http://en.audiofanzine.com/headphone/sony/MDR-7509-HD/medias/pictures/a.play,m.128813.html), and headphones are identical to yours...
Edited by SmOgER - 1/10/13 at 6:29am