go-yara: Unable to use ScanProc

I am unable to read the memory of the desired process with the PID, and I was also unable to do it with the example provided in this same repository. Do you know why this could be?

When running the code, it gives me this error: could not attach to process

package scan

import (
	"fmt"
	"strings"

	"github.com/hillu/go-yara/v4"
)

func Teca() {
	c, err := yara.NewCompiler()
	if c == nil || err != nil {
		return
	}

	rule := `
	rule Suspicious_Injection {

		strings:
		$a1 = {2e 74 68 65 6d 69 64 61}
	
		condition:
		all of them
	}`

	if err = c.AddString(rule, ""); err != nil {
		return
	}

	r, err := c.GetRules()
	if err != nil {
		return
	}

	var m yara.MatchRules

	err = r.ScanProc(9152, 0, 0, &m)
	if err != nil {
		fmt.Println(err)
		return
	}

	if len(m) > 0 {
		for _, match := range m {
			rule := strings.Replace(match.Rule, "_", " ", -1)
			fmt.Println(rule)
		}
	}
}