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/K0/c.java

@@ -0,0 +1,79 @@
+package K0;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import r3.z;
+
+/* loaded from: classes.dex */
+public final class c {
+
+    /* renamed from: a, reason: collision with root package name */
+    public final String f984a;
+
+    /* renamed from: b, reason: collision with root package name */
+    public final long[] f985b;
+
+    /* renamed from: c, reason: collision with root package name */
+    public final ArrayList f986c;
+
+    /* renamed from: d, reason: collision with root package name */
+    public final ArrayList f987d;
+
+    /* renamed from: e, reason: collision with root package name */
+    public boolean f988e;
+
+    /* renamed from: f, reason: collision with root package name */
+    public boolean f989f;
+
+    /* renamed from: g, reason: collision with root package name */
+    public b f990g;
+    public int h;
+    public final /* synthetic */ g i;
+
+    public c(g gVar, String str) {
+        this.i = gVar;
+        this.f984a = str;
+        gVar.getClass();
+        this.f985b = new long[2];
+        gVar.getClass();
+        this.f986c = new ArrayList(2);
+        gVar.getClass();
+        this.f987d = new ArrayList(2);
+        StringBuilder sb = new StringBuilder(str);
+        sb.append('.');
+        int length = sb.length();
+        gVar.getClass();
+        for (int i = 0; i < 2; i++) {
+            sb.append(i);
+            this.f986c.add(this.i.f997a.d(sb.toString()));
+            sb.append(".tmp");
+            this.f987d.add(this.i.f997a.d(sb.toString()));
+            sb.setLength(length);
+        }
+    }
+
+    public final d a() {
+        if (this.f988e && this.f990g == null && !this.f989f) {
+            ArrayList arrayList = this.f986c;
+            int size = arrayList.size();
+            int i = 0;
+            while (true) {
+                g gVar = this.i;
+                if (i >= size) {
+                    this.h++;
+                    return new d(gVar, this);
+                }
+                if (gVar.p.c((z) arrayList.get(i))) {
+                    i++;
+                } else {
+                    try {
+                        gVar.d0(this);
+                        return null;
+                    } catch (IOException unused) {
+                    }
+                }
+            }
+        }
+        return null;
+    }
+}