The string is almost certainly a result of character encoding errors (mojibake) typically found on low-quality or malicious sites. The Verdict: Severe Security Risk
Installing an unknown APK from a source that can't even display its own name correctly bypasses Android’s security model, giving the software deep access to your personal data, messages, and banking info. Safe Alternatives The string is almost certainly a result of
Files labeled as "Crack" or "Mod" for popular apps—especially when paired with broken text—are the most common delivery method for adware, spyware, and ransomware . and ransomware . Look for free
Look for free, open-source versions on F-Droid , which are audited for privacy. open-source versions on F-Droid
Search for the legitimate version of the app to ensure you're getting a verified file.