Type your comment> @TazWake said:
Alternatively - because MS08-67 is so old things may have changed in the internals of MSF, you could try a different SMB exploit like Eternal Blue (MS17-10) which is well handled by metasploit. (ms17_010_psexec is a good one to try)
MSF also has scanners for a variety of smb attacks. If you are struggling to find one that works I’d suggest investigating those.