second one, best do it in a loop.

first one

use v5.12;
use warnings;
use Data::Dump qw/pp dd/;

my @AoH;
my $count = 0;
while (<DATA>) {
    chomp;
    if ( /---START---/ .. /---END---/) {
        if ( /\|([A-Z]+): (.+)/) {
            $AoH[$count]{$1}=$2;
        }
        $count++ if /---END---/;
    }
}

pp \@AoH;


__DATA__
---START----
|FULLNAME: JANE DEO
|BINF : 492BBJJ
|PRICE: 10
|COUNTRY: GR
 ---END---    

---START----
|FULLNAME: JOHN DEO
|BINF : K92BBJJ
|PRICE: 24
|COUNTRY: AS
 ---END---
[download]

OUTPUT:

[
  { COUNTRY => "GR", FULLNAME => "JANE DEO", PRICE => 10 },
  { COUNTRY => "AS", FULLNAME => "JOHN DEO", PRICE => 24 },
]
[download]