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/t3/a.java

@@ -0,0 +1,36 @@
+package t3;
+
+import java.util.Arrays;
+import kotlin.jvm.internal.Intrinsics;
+
+/* loaded from: classes3.dex */
+public final class a extends b {
+    @Override // t3.b
+    public final void a(String str, Object... args) {
+        Intrinsics.checkNotNullParameter(args, "args");
+        for (b bVar : c.f8553c) {
+            bVar.a(str, Arrays.copyOf(args, args.length));
+        }
+    }
+
+    @Override // t3.b
+    public final void b(Throwable th) {
+        for (b bVar : c.f8553c) {
+            bVar.b(th);
+        }
+    }
+
+    @Override // t3.b
+    public final void c(int i, String str, String message, Throwable th) {
+        Intrinsics.checkNotNullParameter(message, "message");
+        throw new AssertionError();
+    }
+
+    @Override // t3.b
+    public final void e(String str, Object... args) {
+        Intrinsics.checkNotNullParameter(args, "args");
+        for (b bVar : c.f8553c) {
+            bVar.e(str, Arrays.copyOf(args, args.length));
+        }
+    }
+}

apk_decompiled/sources/t3/b.java

@@ -0,0 +1,71 @@
+package t3;
+
+import C.w;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.io.Writer;
+import java.util.Arrays;
+import kotlin.jvm.internal.Intrinsics;
+
+/* loaded from: classes3.dex */
+public abstract class b {
+
+    /* renamed from: a, reason: collision with root package name */
+    public final ThreadLocal f8550a = new ThreadLocal();
+
+    public void a(String str, Object... args) {
+        Intrinsics.checkNotNullParameter(args, "args");
+        d(6, null, str, Arrays.copyOf(args, args.length));
+    }
+
+    public void b(Throwable th) {
+        d(6, th, null, new Object[0]);
+    }
+
+    public abstract void c(int i, String str, String str2, Throwable th);
+
+    public final void d(int i, Throwable th, String message, Object... args) {
+        ThreadLocal threadLocal = this.f8550a;
+        String str = (String) threadLocal.get();
+        if (str != null) {
+            threadLocal.remove();
+        }
+        if (message != null && message.length() != 0) {
+            if (args.length != 0) {
+                Intrinsics.checkNotNullParameter(message, "message");
+                Intrinsics.checkNotNullParameter(args, "args");
+                Object[] copyOf = Arrays.copyOf(args, args.length);
+                message = w.s(copyOf, copyOf.length, message, "java.lang.String.format(this, *args)");
+            }
+            if (th != null) {
+                StringBuilder sb = new StringBuilder();
+                sb.append((Object) message);
+                sb.append('\n');
+                StringWriter stringWriter = new StringWriter(256);
+                PrintWriter printWriter = new PrintWriter((Writer) stringWriter, false);
+                th.printStackTrace(printWriter);
+                printWriter.flush();
+                String stringWriter2 = stringWriter.toString();
+                Intrinsics.checkNotNullExpressionValue(stringWriter2, "sw.toString()");
+                sb.append(stringWriter2);
+                message = sb.toString();
+            }
+        } else {
+            if (th == null) {
+                return;
+            }
+            StringWriter stringWriter3 = new StringWriter(256);
+            PrintWriter printWriter2 = new PrintWriter((Writer) stringWriter3, false);
+            th.printStackTrace(printWriter2);
+            printWriter2.flush();
+            message = stringWriter3.toString();
+            Intrinsics.checkNotNullExpressionValue(message, "sw.toString()");
+        }
+        c(i, str, message, th);
+    }
+
+    public void e(String str, Object... args) {
+        Intrinsics.checkNotNullParameter(args, "args");
+        d(5, null, str, Arrays.copyOf(args, args.length));
+    }
+}

apk_decompiled/sources/t3/c.java

@@ -0,0 +1,16 @@
+package t3;
+
+import java.util.ArrayList;
+
+/* loaded from: classes3.dex */
+public abstract class c {
+
+    /* renamed from: a, reason: collision with root package name */
+    public static final a f8551a = new b();
+
+    /* renamed from: b, reason: collision with root package name */
+    public static final ArrayList f8552b = new ArrayList();
+
+    /* renamed from: c, reason: collision with root package name */
+    public static volatile b[] f8553c = new b[0];
+}