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/x2/j.java

@@ -0,0 +1,70 @@
+package x2;
+
+import android.content.Context;
+import android.text.TextPaint;
+import com.google.android.gms.maps.model.BitmapDescriptorFactory;
+import java.lang.ref.WeakReference;
+import s2.C0608a;
+
+/* loaded from: classes3.dex */
+public final class j {
+
+    /* renamed from: c, reason: collision with root package name */
+    public float f8960c;
+
+    /* renamed from: d, reason: collision with root package name */
+    public float f8961d;
+
+    /* renamed from: f, reason: collision with root package name */
+    public final WeakReference f8963f;
+
+    /* renamed from: g, reason: collision with root package name */
+    public B2.d f8964g;
+
+    /* renamed from: a, reason: collision with root package name */
+    public final TextPaint f8958a = new TextPaint(1);
+
+    /* renamed from: b, reason: collision with root package name */
+    public final C0608a f8959b = new C0608a(this, 1);
+
+    /* renamed from: e, reason: collision with root package name */
+    public boolean f8962e = true;
+
+    public j(i iVar) {
+        this.f8963f = new WeakReference(null);
+        this.f8963f = new WeakReference(iVar);
+    }
+
+    public final void a(String str) {
+        TextPaint textPaint = this.f8958a;
+        float f2 = BitmapDescriptorFactory.HUE_RED;
+        this.f8960c = str == null ? 0.0f : textPaint.measureText((CharSequence) str, 0, str.length());
+        if (str != null) {
+            f2 = Math.abs(textPaint.getFontMetrics().ascent);
+        }
+        this.f8961d = f2;
+        this.f8962e = false;
+    }
+
+    public final void b(B2.d dVar, Context context) {
+        if (this.f8964g != dVar) {
+            this.f8964g = dVar;
+            if (dVar != null) {
+                TextPaint textPaint = this.f8958a;
+                C0608a c0608a = this.f8959b;
+                dVar.f(context, textPaint, c0608a);
+                i iVar = (i) this.f8963f.get();
+                if (iVar != null) {
+                    textPaint.drawableState = iVar.getState();
+                }
+                dVar.e(context, textPaint, c0608a);
+                this.f8962e = true;
+            }
+            i iVar2 = (i) this.f8963f.get();
+            if (iVar2 != null) {
+                iVar2.a();
+                iVar2.onStateChange(iVar2.getState());
+            }
+        }
+    }
+}