Metal scratching from brakes

[alt_k1ll3r]

I had the problem for a year now and i cant figure it out.

When i apply brake hard on slippery and snowy roads at low speed 30's my brakes make a sound like
taking a metal bar and scratching the surface of
the stone with it, and when it makes the sound it also
pulsates goes up and down up and down, like something missing , and they also feel soft .
Because on my dads accord the brakes feel like brakes, stable.

The car is one year old 09 stock with 9K on it no mods.
Is it the ABS kicking in? no light on dash,no steering wheel sound.
Pads could be worn? at 9K miles? could it be so fast?

I looked it up in some forums people describe the same problem but no solution and the dealers say its because the brakes are cold.

I still have warranty should i just go to the dealer and ask them about it ,
i am sure the brakes are fine but i don't like driving with unstable brakes.