I've been looking at the addresses and the contract daily in the last few days. I even inspected the contract code.
It's verified and can be looked up here: https://etherscan.io/address/0x2c4e8f2d746113d0696ce89b35f0d8bf88e0aeca#code

Earlier I looked up all transactions which happened almost at the same time as yours.
I mentioned this address: https://etherscan.io/address/0xf98ee179ca7246dfcbae799810096a09526a4172#tokentxns
He got his tokens. Then they were transferred to an empty address. He got his airdrop. Then the airdrop was transferred to the same address. And now all tokens were transferred to Binance.

The way you added the token to EtherDelta should be fine as long as you used the correct contract address: 0x2c4e8f2d746113d0696ce89b35f0d8bf88e0aeca

I'm also interested in a possible explanation. It's pretty odd that the transfers seem to be initiated automatically, just as if there is a service involved.