How rewrite request url on AWS Elastic Beanstalk Tomcat?

I host webapp on AWS Elastic Beanstalk (Tomcat 8).

I would like to rewrite third level domain requests to specific urls.

For example:
request password.mydomain.com rewrite to http://ift.tt/1BhyZaE
request admin.mydomain.com rewrite to mydomain.com/admin etc.

Is it possible? Any pointers helpful.