FIN7 Threat Hunting with Splunk: Ep.3 – Execution Logs

I am pulling my hair with this last question 

Rebuild the PowerShell script from the previous question using the three parts found in the PowerShell operational logs. What is the MD5 hash of this file? (The file should not contain any trailing white space or return characters)

I ran 
index=* (EventCode=4104)
|  search "stager.ps1" AND "scriptblock"
|  table _raw 

and added the script content of files (1 of 3) (2 of 3) (3 of 3) to a new file. I removed the spaces and made sure they are glued together. I pasted the file in cyber chef with md5 selected and I keep getting the wrong hash. See a sample of the beginning and end of the 3 files

This is just a sample below. I really don't know what else to do with this.

$EncodedCompressedFile = @'
7b1pk+LKcjD83RH3P5y4cT/Y0ddusfXAfcMRT5U2JJCgBBJIDn8AAQIklmmgBfz6N7O00sCcnuuxH9vPUcRMo1qycqvMrFItfxmsgu3keHqf//avv/2fP//pH/5NiiJts9+9H//xz+H8fTuPatV/mUXRn//p
u3rgE9+I/KPY62u+qTQuvp0Xqu3KPkEovj/867/++Z/+9A9/+oe/jFZbY7757V9/w1+96fpvf3NW78fTJCJRtPP/UfjrvxmT4/Lf//Y3Y3L+x79ML8f54V+6821wXP5VOFcEQfgn+FuDv/CnLnCY/za4HI7zzb9Yp+1xtZn/i7Y9zt93+8H8/WPlQ3Vj8n5YTiKAKe72lxToX4W/prj89aaVHEuOm/g+nxznwyX8mQFuRR38ja3//w==
'@
$Decoded = [System.Convert]::FromBase64String($EncodedCompressedFile)
$MemStream = New-Object System.IO.MemoryStream
$MemStream.Write($Decoded, 0, $Decoded.Length)
$MemStream.Seek(0,0) | Out-Null
$CompressedStream = New-Object System.IO.Compression.DeflateStream($MemStream, [System.IO.Compression.CompressionMode]::Decompress)
$StreamReader = New-Object System.IO.StreamReader($CompressedStream)
$Output = $StreamReader.readtoend() $Output | IEX