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/jvm/internal/AdaptedFunctionReference.java

@@ -0,0 +1,67 @@
+package kotlin.jvm.internal;
+
+import com.google.android.gms.measurement.internal.a;
+import java.io.Serializable;
+import kotlin.SinceKotlin;
+import kotlin.reflect.KDeclarationContainer;
+
+@SinceKotlin(version = "1.4")
+/* loaded from: classes3.dex */
+public class AdaptedFunctionReference implements FunctionBase, Serializable {
+    private final int arity;
+    private final int flags;
+    private final boolean isTopLevel;
+    private final String name;
+    private final Class owner;
+    protected final Object receiver;
+    private final String signature;
+
+    public AdaptedFunctionReference(int i, Class cls, String str, String str2, int i4) {
+        this(i, CallableReference.NO_RECEIVER, cls, str, str2, i4);
+    }
+
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (!(obj instanceof AdaptedFunctionReference)) {
+            return false;
+        }
+        AdaptedFunctionReference adaptedFunctionReference = (AdaptedFunctionReference) obj;
+        return this.isTopLevel == adaptedFunctionReference.isTopLevel && this.arity == adaptedFunctionReference.arity && this.flags == adaptedFunctionReference.flags && Intrinsics.areEqual(this.receiver, adaptedFunctionReference.receiver) && Intrinsics.areEqual(this.owner, adaptedFunctionReference.owner) && this.name.equals(adaptedFunctionReference.name) && this.signature.equals(adaptedFunctionReference.signature);
+    }
+
+    @Override // kotlin.jvm.internal.FunctionBase
+    public int getArity() {
+        return this.arity;
+    }
+
+    public KDeclarationContainer getOwner() {
+        Class cls = this.owner;
+        if (cls == null) {
+            return null;
+        }
+        return this.isTopLevel ? Reflection.getOrCreateKotlinPackage(cls) : Reflection.getOrCreateKotlinClass(cls);
+    }
+
+    public int hashCode() {
+        Object obj = this.receiver;
+        int hashCode = (obj != null ? obj.hashCode() : 0) * 31;
+        Class cls = this.owner;
+        return ((((a.d(this.signature, a.d(this.name, (hashCode + (cls != null ? cls.hashCode() : 0)) * 31, 31), 31) + (this.isTopLevel ? 1231 : 1237)) * 31) + this.arity) * 31) + this.flags;
+    }
+
+    public String toString() {
+        return Reflection.renderLambdaToString(this);
+    }
+
+    public AdaptedFunctionReference(int i, Object obj, Class cls, String str, String str2, int i4) {
+        this.receiver = obj;
+        this.owner = cls;
+        this.name = str;
+        this.signature = str2;
+        this.isTopLevel = (i4 & 1) == 1;
+        this.arity = i;
+        this.flags = i4 >> 1;
+    }
+}