unpacking upx packed and scrambled pe

I havent tried it on your mentioned target but here is what I know

UPXUnpack by Bratalarm (unpacks most generic and scrambled upx packed files)

Good 'ole PROCDUMP .. Unpack.. UPX works OK too on scrambled.
Old but still kickin' "some" **** is "ProcDump".
It will always remain in my best \TOOLS\ folder

ProcDump version 1.6 (C) G-RoM, Lorian & Stone in 1998, 1999, 2000

You can also do it yourself manually.