/usr/share/php/kohana2/modules/payment/libraries/ is in libkohana2-modules-php 2.3.4-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/kohana2/modules/payment/libraries/Payment.php
/usr/share/php/kohana2/modules/payment/libraries/drivers/
/usr/share/php/kohana2/modules/payment/libraries/drivers/Payment/
/usr/share/php/kohana2/modules/payment/libraries/drivers/Payment.php
/usr/share/php/kohana2/modules/payment/libraries/drivers/Payment/Authorize.php
/usr/share/php/kohana2/modules/payment/libraries/drivers/Payment/Googlecheckout.php
/usr/share/php/kohana2/modules/payment/libraries/drivers/Payment/Moneybookers.php
/usr/share/php/kohana2/modules/payment/libraries/drivers/Payment/Paypal.php
/usr/share/php/kohana2/modules/payment/libraries/drivers/Payment/Paypalpro.php
/usr/share/php/kohana2/modules/payment/libraries/drivers/Payment/Trident.php
/usr/share/php/kohana2/modules/payment/libraries/drivers/Payment/Trustcommerce.php
/usr/share/php/kohana2/modules/payment/libraries/drivers/Payment/Yourpay.php