This clip comes from soundboard culture rather than a film or show, built by typing the number sequence 09 09 76765 into FL Studio with the piano keyboard mode on. That trick turns a typed pattern into a short pitched phrase that sounds like a snickering hehehe capped with blyat. It spread through meme edits and Slav humor compilations where a quick, slightly rude laugh was needed. Its charm is the DIY musical feel, which keeps it in rotation for pranks, gaming clips and ironic fail montages.