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/n3/f.java

@@ -0,0 +1,105 @@
+package n3;
+
+import com.google.firebase.remoteconfig.RemoteConfigConstants;
+import f0.C0338b;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.List;
+import javax.net.ssl.SSLSocket;
+import kotlin.jvm.internal.Intrinsics;
+import kotlin.text.Charsets;
+
+/* loaded from: classes3.dex */
+public class f implements m {
+
+    /* renamed from: f, reason: collision with root package name */
+    public static final e f7872f;
+
+    /* renamed from: a, reason: collision with root package name */
+    public final Class f7873a;
+
+    /* renamed from: b, reason: collision with root package name */
+    public final Method f7874b;
+
+    /* renamed from: c, reason: collision with root package name */
+    public final Method f7875c;
+
+    /* renamed from: d, reason: collision with root package name */
+    public final Method f7876d;
+
+    /* renamed from: e, reason: collision with root package name */
+    public final Method f7877e;
+
+    /* JADX WARN: Type inference failed for: r0v1, types: [java.lang.Object, n3.e] */
+    static {
+        Intrinsics.checkNotNullParameter("com.google.android.gms.org.conscrypt", RemoteConfigConstants.RequestFieldKey.PACKAGE_NAME);
+        f7872f = new Object();
+    }
+
+    public f(Class sslSocketClass) {
+        Intrinsics.checkNotNullParameter(sslSocketClass, "sslSocketClass");
+        this.f7873a = sslSocketClass;
+        Method declaredMethod = sslSocketClass.getDeclaredMethod("setUseSessionTickets", Boolean.TYPE);
+        Intrinsics.checkNotNullExpressionValue(declaredMethod, "sslSocketClass.getDeclar…:class.javaPrimitiveType)");
+        this.f7874b = declaredMethod;
+        this.f7875c = sslSocketClass.getMethod("setHostname", String.class);
+        this.f7876d = sslSocketClass.getMethod("getAlpnSelectedProtocol", new Class[0]);
+        this.f7877e = sslSocketClass.getMethod("setAlpnProtocols", byte[].class);
+    }
+
+    @Override // n3.m
+    public final boolean a(SSLSocket sslSocket) {
+        Intrinsics.checkNotNullParameter(sslSocket, "sslSocket");
+        return this.f7873a.isInstance(sslSocket);
+    }
+
+    @Override // n3.m
+    public final String b(SSLSocket sslSocket) {
+        Intrinsics.checkNotNullParameter(sslSocket, "sslSocket");
+        if (!a(sslSocket)) {
+            return null;
+        }
+        try {
+            byte[] bArr = (byte[]) this.f7876d.invoke(sslSocket, new Object[0]);
+            if (bArr != null) {
+                return new String(bArr, Charsets.UTF_8);
+            }
+            return null;
+        } catch (IllegalAccessException e4) {
+            throw new AssertionError(e4);
+        } catch (InvocationTargetException e5) {
+            Throwable cause = e5.getCause();
+            if ((cause instanceof NullPointerException) && Intrinsics.areEqual(((NullPointerException) cause).getMessage(), "ssl == null")) {
+                return null;
+            }
+            throw new AssertionError(e5);
+        }
+    }
+
+    @Override // n3.m
+    public final boolean c() {
+        boolean z3 = m3.c.f7810e;
+        return m3.c.f7810e;
+    }
+
+    @Override // n3.m
+    public final void d(SSLSocket sslSocket, String str, List protocols) {
+        Intrinsics.checkNotNullParameter(sslSocket, "sslSocket");
+        Intrinsics.checkNotNullParameter(protocols, "protocols");
+        if (a(sslSocket)) {
+            try {
+                this.f7874b.invoke(sslSocket, Boolean.TRUE);
+                if (str != null) {
+                    this.f7875c.invoke(sslSocket, str);
+                }
+                Method method = this.f7877e;
+                m3.n nVar = m3.n.f7829a;
+                method.invoke(sslSocket, C0338b.j(protocols));
+            } catch (IllegalAccessException e4) {
+                throw new AssertionError(e4);
+            } catch (InvocationTargetException e5) {
+                throw new AssertionError(e5);
+            }
+        }
+    }
+}