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/FunctionReference.java

@@ -0,0 +1,105 @@
+package kotlin.jvm.internal;
+
+import kotlin.SinceKotlin;
+import kotlin.reflect.KCallable;
+import kotlin.reflect.KFunction;
+
+/* loaded from: classes3.dex */
+public class FunctionReference extends CallableReference implements FunctionBase, KFunction {
+    private final int arity;
+
+    @SinceKotlin(version = "1.4")
+    private final int flags;
+
+    public FunctionReference(int i) {
+        this(i, CallableReference.NO_RECEIVER, null, null, null, 0);
+    }
+
+    @Override // kotlin.jvm.internal.CallableReference
+    @SinceKotlin(version = "1.1")
+    public KCallable computeReflected() {
+        return Reflection.function(this);
+    }
+
+    public boolean equals(Object obj) {
+        if (obj == this) {
+            return true;
+        }
+        if (obj instanceof FunctionReference) {
+            FunctionReference functionReference = (FunctionReference) obj;
+            return getName().equals(functionReference.getName()) && getSignature().equals(functionReference.getSignature()) && this.flags == functionReference.flags && this.arity == functionReference.arity && Intrinsics.areEqual(getBoundReceiver(), functionReference.getBoundReceiver()) && Intrinsics.areEqual(getOwner(), functionReference.getOwner());
+        }
+        if (obj instanceof KFunction) {
+            return obj.equals(compute());
+        }
+        return false;
+    }
+
+    @Override // kotlin.jvm.internal.FunctionBase
+    public int getArity() {
+        return this.arity;
+    }
+
+    public int hashCode() {
+        return getSignature().hashCode() + ((getName().hashCode() + (getOwner() == null ? 0 : getOwner().hashCode() * 31)) * 31);
+    }
+
+    @Override // kotlin.reflect.KFunction
+    @SinceKotlin(version = "1.1")
+    public boolean isExternal() {
+        return getReflected().isExternal();
+    }
+
+    @Override // kotlin.reflect.KFunction
+    @SinceKotlin(version = "1.1")
+    public boolean isInfix() {
+        return getReflected().isInfix();
+    }
+
+    @Override // kotlin.reflect.KFunction
+    @SinceKotlin(version = "1.1")
+    public boolean isInline() {
+        return getReflected().isInline();
+    }
+
+    @Override // kotlin.reflect.KFunction
+    @SinceKotlin(version = "1.1")
+    public boolean isOperator() {
+        return getReflected().isOperator();
+    }
+
+    @Override // kotlin.jvm.internal.CallableReference, kotlin.reflect.KCallable
+    @SinceKotlin(version = "1.1")
+    public boolean isSuspend() {
+        return getReflected().isSuspend();
+    }
+
+    public String toString() {
+        KCallable compute = compute();
+        if (compute != this) {
+            return compute.toString();
+        }
+        if ("<init>".equals(getName())) {
+            return "constructor (Kotlin reflection is not available)";
+        }
+        return "function " + getName() + " (Kotlin reflection is not available)";
+    }
+
+    @SinceKotlin(version = "1.1")
+    public FunctionReference(int i, Object obj) {
+        this(i, obj, null, null, null, 0);
+    }
+
+    @Override // kotlin.jvm.internal.CallableReference
+    @SinceKotlin(version = "1.1")
+    public KFunction getReflected() {
+        return (KFunction) super.getReflected();
+    }
+
+    @SinceKotlin(version = "1.4")
+    public FunctionReference(int i, Object obj, Class cls, String str, String str2, int i4) {
+        super(obj, cls, str, str2, (i4 & 1) == 1);
+        this.arity = i;
+        this.flags = i4 >> 1;
+    }
+}