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/firebase/dynamiclinks/internal/IDynamicLinksCallbacks.java

@@ -0,0 +1,167 @@
+package com.google.firebase.dynamiclinks.internal;
+
+import android.os.Binder;
+import android.os.IBinder;
+import android.os.IInterface;
+import android.os.Parcel;
+import android.os.RemoteException;
+import com.google.android.gms.common.api.Status;
+
+/* loaded from: classes3.dex */
+public interface IDynamicLinksCallbacks extends IInterface {
+
+    /* loaded from: classes3.dex */
+    public static class Default implements IDynamicLinksCallbacks {
+        @Override // android.os.IInterface
+        public IBinder asBinder() {
+            return null;
+        }
+
+        @Override // com.google.firebase.dynamiclinks.internal.IDynamicLinksCallbacks
+        public void onCreateShortDynamicLink(Status status, ShortDynamicLinkImpl shortDynamicLinkImpl) throws RemoteException {
+        }
+
+        @Override // com.google.firebase.dynamiclinks.internal.IDynamicLinksCallbacks
+        public void onGetDynamicLink(Status status, DynamicLinkData dynamicLinkData) throws RemoteException {
+        }
+    }
+
+    /* loaded from: classes3.dex */
+    public static abstract class Stub extends Binder implements IDynamicLinksCallbacks {
+        private static final String DESCRIPTOR = "com.google.firebase.dynamiclinks.internal.IDynamicLinksCallbacks";
+        static final int TRANSACTION_onCreateShortDynamicLink = 2;
+        static final int TRANSACTION_onGetDynamicLink = 1;
+
+        /* loaded from: classes3.dex */
+        public static class Proxy implements IDynamicLinksCallbacks {
+            public static IDynamicLinksCallbacks sDefaultImpl;
+            private IBinder mRemote;
+
+            public Proxy(IBinder iBinder) {
+                this.mRemote = iBinder;
+            }
+
+            @Override // android.os.IInterface
+            public IBinder asBinder() {
+                return this.mRemote;
+            }
+
+            public String getInterfaceDescriptor() {
+                return Stub.DESCRIPTOR;
+            }
+
+            @Override // com.google.firebase.dynamiclinks.internal.IDynamicLinksCallbacks
+            public void onCreateShortDynamicLink(Status status, ShortDynamicLinkImpl shortDynamicLinkImpl) throws RemoteException {
+                Parcel obtain = Parcel.obtain();
+                try {
+                    obtain.writeInterfaceToken(Stub.DESCRIPTOR);
+                    if (status != null) {
+                        obtain.writeInt(1);
+                        status.writeToParcel(obtain, 0);
+                    } else {
+                        obtain.writeInt(0);
+                    }
+                    if (shortDynamicLinkImpl != null) {
+                        obtain.writeInt(1);
+                        shortDynamicLinkImpl.writeToParcel(obtain, 0);
+                    } else {
+                        obtain.writeInt(0);
+                    }
+                    if (this.mRemote.transact(2, obtain, null, 1) || Stub.getDefaultImpl() == null) {
+                        obtain.recycle();
+                    } else {
+                        Stub.getDefaultImpl().onCreateShortDynamicLink(status, shortDynamicLinkImpl);
+                        obtain.recycle();
+                    }
+                } catch (Throwable th) {
+                    obtain.recycle();
+                    throw th;
+                }
+            }
+
+            @Override // com.google.firebase.dynamiclinks.internal.IDynamicLinksCallbacks
+            public void onGetDynamicLink(Status status, DynamicLinkData dynamicLinkData) throws RemoteException {
+                Parcel obtain = Parcel.obtain();
+                try {
+                    obtain.writeInterfaceToken(Stub.DESCRIPTOR);
+                    if (status != null) {
+                        obtain.writeInt(1);
+                        status.writeToParcel(obtain, 0);
+                    } else {
+                        obtain.writeInt(0);
+                    }
+                    if (dynamicLinkData != null) {
+                        obtain.writeInt(1);
+                        dynamicLinkData.writeToParcel(obtain, 0);
+                    } else {
+                        obtain.writeInt(0);
+                    }
+                    if (this.mRemote.transact(1, obtain, null, 1) || Stub.getDefaultImpl() == null) {
+                        obtain.recycle();
+                    } else {
+                        Stub.getDefaultImpl().onGetDynamicLink(status, dynamicLinkData);
+                        obtain.recycle();
+                    }
+                } catch (Throwable th) {
+                    obtain.recycle();
+                    throw th;
+                }
+            }
+        }
+
+        public Stub() {
+            attachInterface(this, DESCRIPTOR);
+        }
+
+        public static IDynamicLinksCallbacks asInterface(IBinder iBinder) {
+            if (iBinder == null) {
+                return null;
+            }
+            IInterface queryLocalInterface = iBinder.queryLocalInterface(DESCRIPTOR);
+            return (queryLocalInterface == null || !(queryLocalInterface instanceof IDynamicLinksCallbacks)) ? new Proxy(iBinder) : (IDynamicLinksCallbacks) queryLocalInterface;
+        }
+
+        public static IDynamicLinksCallbacks getDefaultImpl() {
+            return Proxy.sDefaultImpl;
+        }
+
+        public static boolean setDefaultImpl(IDynamicLinksCallbacks iDynamicLinksCallbacks) {
+            if (Proxy.sDefaultImpl != null) {
+                throw new IllegalStateException("setDefaultImpl() called twice");
+            }
+            if (iDynamicLinksCallbacks == null) {
+                return false;
+            }
+            Proxy.sDefaultImpl = iDynamicLinksCallbacks;
+            return true;
+        }
+
+        @Override // android.os.IInterface
+        public IBinder asBinder() {
+            return this;
+        }
+
+        @Override // android.os.Binder
+        public boolean onTransact(int i, Parcel parcel, Parcel parcel2, int i4) throws RemoteException {
+            if (i == 1) {
+                parcel.enforceInterface(DESCRIPTOR);
+                onGetDynamicLink(parcel.readInt() != 0 ? Status.CREATOR.createFromParcel(parcel) : null, parcel.readInt() != 0 ? DynamicLinkData.CREATOR.createFromParcel(parcel) : null);
+                return true;
+            }
+            if (i == 2) {
+                parcel.enforceInterface(DESCRIPTOR);
+                onCreateShortDynamicLink(parcel.readInt() != 0 ? Status.CREATOR.createFromParcel(parcel) : null, parcel.readInt() != 0 ? ShortDynamicLinkImpl.CREATOR.createFromParcel(parcel) : null);
+                return true;
+            }
+            if (i != 1598968902) {
+                return super.onTransact(i, parcel, parcel2, i4);
+            }
+            parcel2.writeString(DESCRIPTOR);
+            return true;
+        }
+    }
+
+    void onCreateShortDynamicLink(Status status, ShortDynamicLinkImpl shortDynamicLinkImpl) throws RemoteException;
+
+    void onGetDynamicLink(Status status, DynamicLinkData dynamicLinkData) throws RemoteException;
+}