Let’s start by making pairs to see what we have

37 4u 36 77 75 uu 00 uu 74 78 78 4z 47

Look at where numbers should be in the passcode format. They all start with 7. Atbash letters and numbers

73 6f 74 33 35 ff 00 ff 36 32 32 6a 63

Convert hex to Ascii except for the FF 00 FF

sot35622jc

FF00FF would be the colour Magenta but because we use Atbash we can assume it’s 00FF00 which is green

sot35green622jc

Make a 4×4 grid

Reorder columns as 2, 4, 1, 3

Read going down from the upper left W

wod97alaric863ne

Rot 13 gives

vqd65spy278yw