I just was attacked by hired thugs sent by Wujeeta for theft....

I've never seen her send one before and she is not mentioned in the wikia for sending contracts.....

anyone you steal from will put out a Contract on you, The writing on the page is differnet depending on who you robbed.

http://uesp.net/wiki/Skyrim:Hired_Thug

The innkeeper at the Winking Skeever put a contract out on one of my characters once for eating a piece of cheese from the room she rented from him. LOL