The hash structure is generated, so I can't change the structure of it, just extract it

Sometimes you just need to take out the chainsaw.

This assumes your file is just as you put it, parts always in quotes called hash1, hash2, hash3, there always are keys in quotes called paramA and paramB, and the values of those keys are always in quotes.

#!/usr/local/bin/perl
use strict;
use warnings;
Generate();

sub Generate
{      
        Process_File('hash.pm');
}

sub Process_File
{
        my $filename = shift; 
        open(my $fh, '<:encoding(UTF-8)', $filename)
        or die "Could not open file '$filename' $!";
        my $file=''; 
        while (my $line=<$fh>) { $file.=$line; } 
        for my $n (1..3) { 
          if ($file =~ m/\'hash$n\'.+?\{(.*?)\}/ms) { 
              my $part=$1; 
              my  ($typ_s) = $part=~/\'paramA\'.*?\=\>.*?\'(.*?)\'/ms;
              my  ($paramb)= $part=~/\'paramB\'.*?\=\>.*?\'(.*?)\'/ms;
              print "n $n typ_s $typ_s paramb $paramb\n";
              } # part 
          } # n 
}
[download]

D:\goodies\pdhuck\down1\perl\monks>perl 1185438.pl
n 1 typ_s 00 paramb FF
n 2 typ_s 01 paramb 02
n 3 typ_s 00 paramb 03
[download]