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/m3/i.java

@@ -0,0 +1,84 @@
+package m3;
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import kotlin.jvm.internal.Intrinsics;
+
+/* loaded from: classes3.dex */
+public final class i implements InvocationHandler {
+
+    /* renamed from: a, reason: collision with root package name */
+    public final ArrayList f7818a;
+
+    /* renamed from: b, reason: collision with root package name */
+    public boolean f7819b;
+
+    /* renamed from: c, reason: collision with root package name */
+    public String f7820c;
+
+    public i(ArrayList protocols) {
+        Intrinsics.checkNotNullParameter(protocols, "protocols");
+        this.f7818a = protocols;
+    }
+
+    @Override // java.lang.reflect.InvocationHandler
+    public final Object invoke(Object proxy, Method method, Object[] objArr) {
+        Intrinsics.checkNotNullParameter(proxy, "proxy");
+        Intrinsics.checkNotNullParameter(method, "method");
+        if (objArr == null) {
+            objArr = new Object[0];
+        }
+        String name = method.getName();
+        Class<?> returnType = method.getReturnType();
+        if (Intrinsics.areEqual(name, "supports") && Intrinsics.areEqual(Boolean.TYPE, returnType)) {
+            return Boolean.TRUE;
+        }
+        if (Intrinsics.areEqual(name, "unsupported") && Intrinsics.areEqual(Void.TYPE, returnType)) {
+            this.f7819b = true;
+            return null;
+        }
+        boolean areEqual = Intrinsics.areEqual(name, "protocols");
+        ArrayList arrayList = this.f7818a;
+        if (areEqual && objArr.length == 0) {
+            return arrayList;
+        }
+        if ((Intrinsics.areEqual(name, "selectProtocol") || Intrinsics.areEqual(name, "select")) && Intrinsics.areEqual(String.class, returnType) && objArr.length == 1) {
+            Object obj = objArr[0];
+            if (obj instanceof List) {
+                Intrinsics.checkNotNull(obj, "null cannot be cast to non-null type kotlin.collections.List<*>");
+                List list = (List) obj;
+                int size = list.size();
+                if (size >= 0) {
+                    int i = 0;
+                    while (true) {
+                        Object obj2 = list.get(i);
+                        Intrinsics.checkNotNull(obj2, "null cannot be cast to non-null type kotlin.String");
+                        String str = (String) obj2;
+                        if (!arrayList.contains(str)) {
+                            if (i == size) {
+                                break;
+                            }
+                            i++;
+                        } else {
+                            this.f7820c = str;
+                            return str;
+                        }
+                    }
+                }
+                String str2 = (String) arrayList.get(0);
+                this.f7820c = str2;
+                return str2;
+            }
+        }
+        if ((!Intrinsics.areEqual(name, "protocolSelected") && !Intrinsics.areEqual(name, "selected")) || objArr.length != 1) {
+            return method.invoke(this, Arrays.copyOf(objArr, objArr.length));
+        }
+        Object obj3 = objArr[0];
+        Intrinsics.checkNotNull(obj3, "null cannot be cast to non-null type kotlin.String");
+        this.f7820c = (String) obj3;
+        return null;
+    }
+}