Question

[_0AfTeRsHoCk0_]

I'm making a level and I found some really neat stuff in my webgifs folder to use in my levels (like a small dagger or a candle etc). I want to know if I used those in my level would that be considered stealing graphics? And if it is, whom can I contact to get permission to use those? It's not exactly easy to trace ownership of small webgifs like that down