Is it possible to use attrbiutes that are attached to AD Secuirty Groups within work flows? I have seen some posts referencing user attributes but nothing about attributes on groups.
Yes it's "possible" but not straightforward. You would have to create a web service that performs whatever task required. If you're not familiar with how to do this then check out this excellent course in their Customer Learning Central called, "Nintex for Office 365 - Extensibility"