This idiom or expression has to do with:

Cheating people.
Fooling someone.
Playing a trick on people.
Making someone believe they see one thing but quickly shifting it before they can see what you've done.

Q. How could you believe her story and give her money?
A. What can I say? She pulled a fast one on me.

Another usage for pull:
When someone says: What are you trying to pull? they mean something like:

Are you trying to trick me?
What sneaky thing are you trying to do?

Also see:
Up one’s sleeve.