Primer paso de la investigacion. Se aportan el .apk, las carpetas con el apk extraido y el apk descompilado. El archivo API_DOCUMENTATION.md es un archivo donde se anotaran los descubrimientos del funcionamiento de la API, y los .py son scripts para probar la funcionalidad de la API con los métodos que vayamos encontrando. Finalmente, los archivos .js son scripts de Frida para extraer informacion de la APP durante la ejecucion.

apk_decompiled/sources/com/google/android/gms/measurement/api/AppMeasurementSdk.java

@@ -0,0 +1,239 @@
+package com.google.android.gms.measurement.api;
+
+import android.app.Activity;
+import android.content.Context;
+import android.os.Bundle;
+import com.google.android.gms.common.annotation.KeepForSdk;
+import com.google.android.gms.common.internal.ShowFirstParty;
+import com.google.android.gms.internal.measurement.zzef;
+import com.google.android.gms.measurement.internal.zzhf;
+import com.google.android.gms.measurement.internal.zzhg;
+import java.util.List;
+import java.util.Map;
+
+@ShowFirstParty
+@KeepForSdk
+/* loaded from: classes3.dex */
+public class AppMeasurementSdk {
+    private final zzef zza;
+
+    @KeepForSdk
+    /* loaded from: classes3.dex */
+    public static final class ConditionalUserProperty {
+
+        @KeepForSdk
+        public static final String ACTIVE = "active";
+
+        @KeepForSdk
+        public static final String CREATION_TIMESTAMP = "creation_timestamp";
+
+        @KeepForSdk
+        public static final String EXPIRED_EVENT_NAME = "expired_event_name";
+
+        @KeepForSdk
+        public static final String EXPIRED_EVENT_PARAMS = "expired_event_params";
+
+        @KeepForSdk
+        public static final String NAME = "name";
+
+        @KeepForSdk
+        public static final String ORIGIN = "origin";
+
+        @KeepForSdk
+        public static final String TIMED_OUT_EVENT_NAME = "timed_out_event_name";
+
+        @KeepForSdk
+        public static final String TIMED_OUT_EVENT_PARAMS = "timed_out_event_params";
+
+        @KeepForSdk
+        public static final String TIME_TO_LIVE = "time_to_live";
+
+        @KeepForSdk
+        public static final String TRIGGERED_EVENT_NAME = "triggered_event_name";
+
+        @KeepForSdk
+        public static final String TRIGGERED_EVENT_PARAMS = "triggered_event_params";
+
+        @KeepForSdk
+        public static final String TRIGGERED_TIMESTAMP = "triggered_timestamp";
+
+        @KeepForSdk
+        public static final String TRIGGER_EVENT_NAME = "trigger_event_name";
+
+        @KeepForSdk
+        public static final String TRIGGER_TIMEOUT = "trigger_timeout";
+
+        @KeepForSdk
+        public static final String VALUE = "value";
+
+        private ConditionalUserProperty() {
+        }
+    }
+
+    @ShowFirstParty
+    @KeepForSdk
+    /* loaded from: classes3.dex */
+    public interface EventInterceptor extends zzhf {
+        @Override // com.google.android.gms.measurement.internal.zzhf
+        @ShowFirstParty
+        @KeepForSdk
+        void interceptEvent(String str, String str2, Bundle bundle, long j4);
+    }
+
+    @ShowFirstParty
+    @KeepForSdk
+    /* loaded from: classes3.dex */
+    public interface OnEventListener extends zzhg {
+        @Override // com.google.android.gms.measurement.internal.zzhg
+        @ShowFirstParty
+        @KeepForSdk
+        void onEvent(String str, String str2, Bundle bundle, long j4);
+    }
+
+    public AppMeasurementSdk(zzef zzefVar) {
+        this.zza = zzefVar;
+    }
+
+    @ShowFirstParty
+    @KeepForSdk
+    public static AppMeasurementSdk getInstance(Context context) {
+        return zzef.zzg(context, null, null, null, null).zzd();
+    }
+
+    @KeepForSdk
+    public void beginAdUnitExposure(String str) {
+        this.zza.zzv(str);
+    }
+
+    @KeepForSdk
+    public void clearConditionalUserProperty(String str, String str2, Bundle bundle) {
+        this.zza.zzw(str, str2, bundle);
+    }
+
+    @KeepForSdk
+    public void endAdUnitExposure(String str) {
+        this.zza.zzx(str);
+    }
+
+    @KeepForSdk
+    public long generateEventId() {
+        return this.zza.zzb();
+    }
+
+    @KeepForSdk
+    public String getAppIdOrigin() {
+        return this.zza.zzk();
+    }
+
+    @KeepForSdk
+    public String getAppInstanceId() {
+        return this.zza.zzm();
+    }
+
+    @KeepForSdk
+    public List<Bundle> getConditionalUserProperties(String str, String str2) {
+        return this.zza.zzq(str, str2);
+    }
+
+    @KeepForSdk
+    public String getCurrentScreenClass() {
+        return this.zza.zzn();
+    }
+
+    @KeepForSdk
+    public String getCurrentScreenName() {
+        return this.zza.zzo();
+    }
+
+    @KeepForSdk
+    public String getGmpAppId() {
+        return this.zza.zzp();
+    }
+
+    @KeepForSdk
+    public int getMaxUserProperties(String str) {
+        return this.zza.zza(str);
+    }
+
+    @KeepForSdk
+    public Map<String, Object> getUserProperties(String str, String str2, boolean z3) {
+        return this.zza.zzr(str, str2, z3);
+    }
+
+    @KeepForSdk
+    public void logEvent(String str, String str2, Bundle bundle) {
+        this.zza.zzz(str, str2, bundle);
+    }
+
+    @KeepForSdk
+    public void logEventNoInterceptor(String str, String str2, Bundle bundle, long j4) {
+        this.zza.zzA(str, str2, bundle, j4);
+    }
+
+    @KeepForSdk
+    public void performAction(Bundle bundle) {
+        this.zza.zzc(bundle, false);
+    }
+
+    @KeepForSdk
+    public Bundle performActionWithResponse(Bundle bundle) {
+        return this.zza.zzc(bundle, true);
+    }
+
+    @ShowFirstParty
+    @KeepForSdk
+    public void registerOnMeasurementEventListener(OnEventListener onEventListener) {
+        this.zza.zzC(onEventListener);
+    }
+
+    @KeepForSdk
+    public void setConditionalUserProperty(Bundle bundle) {
+        this.zza.zzE(bundle);
+    }
+
+    @KeepForSdk
+    public void setConsent(Bundle bundle) {
+        this.zza.zzF(bundle);
+    }
+
+    @KeepForSdk
+    public void setCurrentScreen(Activity activity, String str, String str2) {
+        this.zza.zzH(activity, str, str2);
+    }
+
+    @ShowFirstParty
+    @KeepForSdk
+    public void setEventInterceptor(EventInterceptor eventInterceptor) {
+        this.zza.zzK(eventInterceptor);
+    }
+
+    @KeepForSdk
+    public void setMeasurementEnabled(Boolean bool) {
+        this.zza.zzL(bool);
+    }
+
+    @KeepForSdk
+    public void setUserProperty(String str, String str2, Object obj) {
+        this.zza.zzO(str, str2, obj, true);
+    }
+
+    @ShowFirstParty
+    @KeepForSdk
+    public void unregisterOnMeasurementEventListener(OnEventListener onEventListener) {
+        this.zza.zzP(onEventListener);
+    }
+
+    public final void zza(boolean z3) {
+        this.zza.zzI(z3);
+    }
+
+    @KeepForSdk
+    public void setMeasurementEnabled(boolean z3) {
+        this.zza.zzL(Boolean.valueOf(z3));
+    }
+
+    @KeepForSdk
+    public static AppMeasurementSdk getInstance(Context context, String str, String str2, String str3, Bundle bundle) {
+        return zzef.zzg(context, str, str2, str3, bundle).zzd();
+    }
+}

apk_decompiled/sources/com/google/android/gms/measurement/api/R.java

@@ -0,0 +1,7 @@
+package com.google.android.gms.measurement.api;
+
+/* loaded from: classes3.dex */
+public final class R {
+    private R() {
+    }
+}