That's a genuine ES Zigzagoon from an actual Pokemon Box disc. The ability it has upon hatching is always Pickup, but I'm not sure if it'll get Gluttony when it evolves. I think that has something to do with the PID, but I don't know how I could tell. Maybe you could?
The nature doesn't look too great, but considering this thing really can't be RNGed (at least to my knowledge), I think it's a fair compromise, considering that the nature could've been bad for Atk or Spe X_X.
Pokecheck does not recognize the PID, and it will say in the legality analysis that Extremespeed is "Hacked/Event Only (245)". Trust me, it's legit, idk why Pokecheck can't recognize it.
So, if you are interested in it, here's what I was looking at (I'll come back later and pick one
Raikou (shiny) / Nick: "ライコウ" / Rash
Available UT, Lv. 30
Egg moves: Zap Cannon, Aura Sphere, Extremespeed, Weather Ball
christian's (Full Redis); HP Ice 70; Pokemon Movie 10 event;
Blaziken / Nick: "バシャーモ" / Male / Jolly
Available UT, Lv. 36
Bond697's (Full Redis); Speed Boost
Jirachi (can't decide on a nature, although this would be irrelevant if you said "no")
Deoxys / Nick: "DEOXYS" / Timid
Available UT, Lv. 50
from labarith (Full Redis); Oblivia
I also have these DW females if you want them: Poliwag, Nidoran, Lickitung, Igglybuff, Bannette, Spinarak, Phanpy, Stantler, Kangaskhan, Chinchou, and this Smoochum: http://www.pokecheck.org/?p=detail&uid=961023