As I'm sure you know anything is possible but I believe whonix is designed to prevent your Ip from leaking out or being exposed to the host or attacker. To be honest I don't know if there are any know cases, however someone from the whonix team would be better suited to answering that question for you. The following is an excerpt taken from the Whonix Wiki
The Workstation VM runs user applications. It is connected only to the internal virtual LAN, and can directly communicate only with the Gateway, which forces all traffic coming from the Workstation to pass through the Tor network. The Workstation VM can "see" only IP addresses on the Internal LAN, which are the same in every Whonix installation.
User applications therefore have no knowledge of the user's "real" IP address, nor do they have access to any information about the physical hardware. In order to obtain such information, an application would have to find a way "break out" of VirtualBox, or to subvert the Gateway (perhaps through a bug in Tor or the Gateway's Linux kernel).
I don't want to give you wrong information so I think It would be better if I stopped here and let someone more experienced help you out. Sorry I couldn't be more help full