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/kotlin/reflect/KCallable.java

@@ -0,0 +1,74 @@
+package kotlin.reflect;
+
+import com.google.android.gms.measurement.api.AppMeasurementSdk;
+import com.google.firebase.dynamiclinks.DynamicLink;
+import java.util.List;
+import java.util.Map;
+import kotlin.Metadata;
+import kotlin.SinceKotlin;
+import kotlin.internal.IntrinsicConstEvaluation;
+
+@Metadata(d1 = {"\u0000T\n\u0002\u0018\u0002\n\u0000\n\u0002\u0018\u0002\n\u0000\n\u0002\u0010\u000b\n\u0002\b\n\n\u0002\u0010\u000e\n\u0002\b\u0004\n\u0002\u0010 \n\u0002\u0018\u0002\n\u0002\b\u0004\n\u0002\u0018\u0002\n\u0002\b\u0004\n\u0002\u0018\u0002\n\u0002\b\u0003\n\u0002\u0018\u0002\n\u0002\b\u0005\n\u0002\u0010\u0011\n\u0002\u0010\u0000\n\u0002\b\u0002\n\u0002\u0010$\n\u0002\b\u0002\bf\u0018\u0000*\u0006\b\u0000\u0010\u0001 \u00012\u00020\u0002J%\u0010'\u001a\u00028\u00002\u0016\u0010(\u001a\f\u0012\b\b\u0001\u0012\u0004\u0018\u00010*0)\"\u0004\u0018\u00010*H&¢\u0006\u0002\u0010+J#\u0010,\u001a\u00028\u00002\u0014\u0010(\u001a\u0010\u0012\u0004\u0012\u00020\u0015\u0012\u0006\u0012\u0004\u0018\u00010*0-H&¢\u0006\u0002\u0010.R\u001a\u0010\u0003\u001a\u00020\u00048&X§\u0004¢\u0006\f\u0012\u0004\b\u0005\u0010\u0006\u001a\u0004\b\u0003\u0010\u0007R\u001a\u0010\b\u001a\u00020\u00048&X§\u0004¢\u0006\f\u0012\u0004\b\t\u0010\u0006\u001a\u0004\b\b\u0010\u0007R\u001a\u0010\n\u001a\u00020\u00048&X§\u0004¢\u0006\f\u0012\u0004\b\u000b\u0010\u0006\u001a\u0004\b\n\u0010\u0007R\u001a\u0010\f\u001a\u00020\u00048&X§\u0004¢\u0006\f\u0012\u0004\b\r\u0010\u0006\u001a\u0004\b\f\u0010\u0007R\u001a\u0010\u000e\u001a\u00020\u000f8&X§\u0004¢\u0006\f\u0012\u0004\b\u0010\u0010\u0006\u001a\u0004\b\u0011\u0010\u0012R\u001e\u0010\u0013\u001a\b\u0012\u0004\u0012\u00020\u00150\u0014X¦\u0004¢\u0006\f\u0012\u0004\b\u0016\u0010\u0006\u001a\u0004\b\u0017\u0010\u0018R\u0018\u0010\u0019\u001a\u00020\u001aX¦\u0004¢\u0006\f\u0012\u0004\b\u001b\u0010\u0006\u001a\u0004\b\u001c\u0010\u001dR \u0010\u001e\u001a\b\u0012\u0004\u0012\u00020\u001f0\u00148&X§\u0004¢\u0006\f\u0012\u0004\b \u0010\u0006\u001a\u0004\b!\u0010\u0018R\u001c\u0010\"\u001a\u0004\u0018\u00010#8&X§\u0004¢\u0006\f\u0012\u0004\b$\u0010\u0006\u001a\u0004\b%\u0010&¨\u0006/"}, d2 = {"Lkotlin/reflect/KCallable;", "R", "Lkotlin/reflect/KAnnotatedElement;", "isAbstract", "", "isAbstract$annotations", "()V", "()Z", "isFinal", "isFinal$annotations", "isOpen", "isOpen$annotations", "isSuspend", "isSuspend$annotations", AppMeasurementSdk.ConditionalUserProperty.NAME, "", "getName$annotations", "getName", "()Ljava/lang/String;", DynamicLink.Builder.KEY_DYNAMIC_LINK_PARAMETERS, "", "Lkotlin/reflect/KParameter;", "getParameters$annotations", "getParameters", "()Ljava/util/List;", "returnType", "Lkotlin/reflect/KType;", "getReturnType$annotations", "getReturnType", "()Lkotlin/reflect/KType;", "typeParameters", "Lkotlin/reflect/KTypeParameter;", "getTypeParameters$annotations", "getTypeParameters", "visibility", "Lkotlin/reflect/KVisibility;", "getVisibility$annotations", "getVisibility", "()Lkotlin/reflect/KVisibility;", "call", "args", "", "", "([Ljava/lang/Object;)Ljava/lang/Object;", "callBy", "", "(Ljava/util/Map;)Ljava/lang/Object;", "kotlin-stdlib"}, k = 1, mv = {1, 9, 0}, xi = 48)
+/* loaded from: classes3.dex */
+public interface KCallable<R> extends KAnnotatedElement {
+
+    @Metadata(k = 3, mv = {1, 9, 0}, xi = 48)
+    /* loaded from: classes3.dex */
+    public static final class DefaultImpls {
+        @IntrinsicConstEvaluation
+        public static /* synthetic */ void getName$annotations() {
+        }
+
+        public static /* synthetic */ void getParameters$annotations() {
+        }
+
+        public static /* synthetic */ void getReturnType$annotations() {
+        }
+
+        @SinceKotlin(version = "1.1")
+        public static /* synthetic */ void getTypeParameters$annotations() {
+        }
+
+        @SinceKotlin(version = "1.1")
+        public static /* synthetic */ void getVisibility$annotations() {
+        }
+
+        @SinceKotlin(version = "1.1")
+        public static /* synthetic */ void isAbstract$annotations() {
+        }
+
+        @SinceKotlin(version = "1.1")
+        public static /* synthetic */ void isFinal$annotations() {
+        }
+
+        @SinceKotlin(version = "1.1")
+        public static /* synthetic */ void isOpen$annotations() {
+        }
+
+        @SinceKotlin(version = "1.3")
+        public static /* synthetic */ void isSuspend$annotations() {
+        }
+    }
+
+    R call(Object... args);
+
+    R callBy(Map<KParameter, ? extends Object> args);
+
+    String getName();
+
+    List<KParameter> getParameters();
+
+    KType getReturnType();
+
+    List<KTypeParameter> getTypeParameters();
+
+    KVisibility getVisibility();
+
+    boolean isAbstract();
+
+    boolean isFinal();
+
+    boolean isOpen();
+
+    boolean isSuspend();
+}