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/H0/b.java

@@ -0,0 +1,81 @@
+package H0;
+
+import java.util.ArrayList;
+import java.util.ConcurrentModificationException;
+import java.util.Iterator;
+
+/* loaded from: classes.dex */
+public final class b extends j {
+
+    /* renamed from: a, reason: collision with root package name */
+    public final /* synthetic */ int f631a;
+
+    /* renamed from: b, reason: collision with root package name */
+    public final Object f632b;
+
+    public b() {
+        this.f631a = 0;
+        this.f632b = new ArrayList(3);
+    }
+
+    @Override // H0.j
+    public final void a(int i) {
+        switch (this.f631a) {
+            case 0:
+                try {
+                    Iterator it = ((ArrayList) this.f632b).iterator();
+                    while (it.hasNext()) {
+                        ((j) it.next()).a(i);
+                    }
+                    return;
+                } catch (ConcurrentModificationException e4) {
+                    throw new IllegalStateException("Adding and removing callbacks during dispatch to callbacks is not supported", e4);
+                }
+            default:
+                ((androidx.viewpager2.adapter.d) this.f632b).b(false);
+                return;
+        }
+    }
+
+    @Override // H0.j
+    public void b(int i, float f2, int i4) {
+        switch (this.f631a) {
+            case 0:
+                try {
+                    Iterator it = ((ArrayList) this.f632b).iterator();
+                    while (it.hasNext()) {
+                        ((j) it.next()).b(i, f2, i4);
+                    }
+                    return;
+                } catch (ConcurrentModificationException e4) {
+                    throw new IllegalStateException("Adding and removing callbacks during dispatch to callbacks is not supported", e4);
+                }
+            default:
+                return;
+        }
+    }
+
+    @Override // H0.j
+    public final void c(int i) {
+        switch (this.f631a) {
+            case 0:
+                try {
+                    Iterator it = ((ArrayList) this.f632b).iterator();
+                    while (it.hasNext()) {
+                        ((j) it.next()).c(i);
+                    }
+                    return;
+                } catch (ConcurrentModificationException e4) {
+                    throw new IllegalStateException("Adding and removing callbacks during dispatch to callbacks is not supported", e4);
+                }
+            default:
+                ((androidx.viewpager2.adapter.d) this.f632b).b(false);
+                return;
+        }
+    }
+
+    public b(androidx.viewpager2.adapter.d dVar) {
+        this.f631a = 1;
+        this.f632b = dVar;
+    }
+}