The Hammers came in with a round of 16 qualification already in the bag, but knowing that a win would seal first place with one game to lose.
Moyes made eight changes but started with a lot of experience from Alphonse Areola, Tomas Soucek and Mark Noble.
Andriy Yarmolenko has the most European experience of them all in the starting XI, but it didn’t show early on. The Ukraine international was slow and sloppy and got a good shot from Noble after around 10 minutes. It may have taken a while, but the conversation had the desired effect.
Yarmolenko climbed high at the far post to nod into a Nikola Vlasic cross before winning a penalty in added time at the end of the first half, which captain Noble converted from.
The visitors should have extended their lead in the second half, but it was about as comfortable an evening as one could have hoped for.
Here’s how Jack Rosser rated the Hammers in Vienna …
A backup to do all evening and that’s exactly what I did. Everything you need from a caretaker.
Lots of energy on the right side but nothing too much to worry Ben Johnson about his first place in the squad.
Barely troubled throughout, although a few red passes when on the ball from the back.
An evening as routine as possible for the man who hopes to replace Angelo Ogbonna on the side.
It caused a lot of trouble on the left side throughout. Should have had an assist when Bowen deflected his shot.
Controlled and composed performances from the captain. Singing throughout and a fantastic penalty for his first real goal in the Europa League.
Prompted to take control of the game by Moyes but didn’t do too much on the ball. Should have scored when played by Yarmolenko but shot straight at the keeper.
A riddle of a player. Shocking for the first 30 minutes then scores before winning the penalty.
Showed some smart touches around the box as always but would have liked to score a goal or help with his efforts.
A first goal contribution since joining the club with a nice lobed center for the opener. Should offer encouragement.
Worked hard to lead the line and showed quick feet but lost an early chance to open the scoring.
Brought energy to the front line but should have looked up to play Vlasic at the break.
Maintained control in midfield alongside Noble and showed a lot of willpower but nothing too much to get attention.
Things went smoothly and a much needed few minutes after looking very tired with the wolves.
Almost scored with one of his first touches, making a nice save. A good time for the 17-year-old.