QueryPerformanceFrequency

QueryPerformanceFrequency is used to retrieve the frequency of the performance counter. This function is commonly used by malware for anti-debugging purposes. The malware will measure the time before and after an operation, if the time exceeds taken expected time, the malware will terminate or activate a benign function.

Kernel32.dll

Anti-Debugging

https://docs.microsoft.com/en-us/windows/win32/api/profileapi/nf-profileapi-queryperformancefrequency