This is an of Photoshop CC 2014 (15.2.1.257) that has been modified to run without installation, typically from a USB drive or a folder on your hard drive.
Adobe Photoshop CC 2014 (V15.2.1) Portable: A Legacy Powerhouse
If you need the flexibility of a lightweight or portable photo editor without the security risks of cracked legacy software, consider these modern alternatives: