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/kotlinx/coroutines/AbstractTimeSourceKt.java

@@ -0,0 +1,101 @@
+package kotlinx.coroutines;
+
+import java.util.concurrent.locks.LockSupport;
+import kotlin.Metadata;
+import kotlin.Unit;
+import kotlin.internal.InlineOnly;
+
+@Metadata(d1 = {"\u00004\n\u0000\n\u0002\u0018\u0002\n\u0002\b\u0005\n\u0002\u0010\t\n\u0002\b\u0002\n\u0002\u0010\u0002\n\u0000\n\u0002\u0010\u0000\n\u0002\b\u0006\n\u0002\u0018\u0002\n\u0002\b\u0002\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\b\u0002\u001a\t\u0010\u0006\u001a\u00020\u0007H\u0081\b\u001a\t\u0010\b\u001a\u00020\u0007H\u0081\b\u001a\u0019\u0010\t\u001a\u00020\n2\u0006\u0010\u000b\u001a\u00020\f2\u0006\u0010\r\u001a\u00020\u0007H\u0081\b\u001a\t\u0010\u000e\u001a\u00020\nH\u0081\b\u001a\t\u0010\u000f\u001a\u00020\nH\u0081\b\u001a\t\u0010\u0010\u001a\u00020\nH\u0081\b\u001a\u0011\u0010\u0011\u001a\u00020\n2\u0006\u0010\u0012\u001a\u00020\u0013H\u0081\b\u001a\t\u0010\u0014\u001a\u00020\nH\u0081\b\u001a\u0019\u0010\u0015\u001a\u00060\u0016j\u0002`\u00172\n\u0010\u0018\u001a\u00060\u0016j\u0002`\u0017H\u0081\b\"\u001c\u0010\u0000\u001a\u0004\u0018\u00010\u0001X\u0080\u000e¢\u0006\u000e\n\u0000\u001a\u0004\b\u0002\u0010\u0003\"\u0004\b\u0004\u0010\u0005¨\u0006\u0019"}, d2 = {"timeSource", "Lkotlinx/coroutines/AbstractTimeSource;", "getTimeSource", "()Lkotlinx/coroutines/AbstractTimeSource;", "setTimeSource", "(Lkotlinx/coroutines/AbstractTimeSource;)V", "currentTimeMillis", "", "nanoTime", "parkNanos", "", "blocker", "", "nanos", "registerTimeLoopThread", "trackTask", "unTrackTask", "unpark", "thread", "Ljava/lang/Thread;", "unregisterTimeLoopThread", "wrapTask", "Ljava/lang/Runnable;", "Lkotlinx/coroutines/Runnable;", "block", "kotlinx-coroutines-core"}, k = 2, mv = {1, 9, 0}, xi = 48)
+/* loaded from: classes3.dex */
+public final class AbstractTimeSourceKt {
+    private static AbstractTimeSource timeSource;
+
+    @InlineOnly
+    private static final long currentTimeMillis() {
+        AbstractTimeSource timeSource2 = getTimeSource();
+        return timeSource2 != null ? timeSource2.currentTimeMillis() : System.currentTimeMillis();
+    }
+
+    public static final AbstractTimeSource getTimeSource() {
+        return timeSource;
+    }
+
+    @InlineOnly
+    private static final long nanoTime() {
+        AbstractTimeSource timeSource2 = getTimeSource();
+        return timeSource2 != null ? timeSource2.nanoTime() : System.nanoTime();
+    }
+
+    @InlineOnly
+    private static final void parkNanos(Object obj, long j4) {
+        Unit unit;
+        AbstractTimeSource timeSource2 = getTimeSource();
+        if (timeSource2 != null) {
+            timeSource2.parkNanos(obj, j4);
+            unit = Unit.INSTANCE;
+        } else {
+            unit = null;
+        }
+        if (unit == null) {
+            LockSupport.parkNanos(obj, j4);
+        }
+    }
+
+    @InlineOnly
+    private static final void registerTimeLoopThread() {
+        AbstractTimeSource timeSource2 = getTimeSource();
+        if (timeSource2 != null) {
+            timeSource2.registerTimeLoopThread();
+        }
+    }
+
+    public static final void setTimeSource(AbstractTimeSource abstractTimeSource) {
+        timeSource = abstractTimeSource;
+    }
+
+    @InlineOnly
+    private static final void trackTask() {
+        AbstractTimeSource timeSource2 = getTimeSource();
+        if (timeSource2 != null) {
+            timeSource2.trackTask();
+        }
+    }
+
+    @InlineOnly
+    private static final void unTrackTask() {
+        AbstractTimeSource timeSource2 = getTimeSource();
+        if (timeSource2 != null) {
+            timeSource2.unTrackTask();
+        }
+    }
+
+    @InlineOnly
+    private static final void unpark(Thread thread) {
+        Unit unit;
+        AbstractTimeSource timeSource2 = getTimeSource();
+        if (timeSource2 != null) {
+            timeSource2.unpark(thread);
+            unit = Unit.INSTANCE;
+        } else {
+            unit = null;
+        }
+        if (unit == null) {
+            LockSupport.unpark(thread);
+        }
+    }
+
+    @InlineOnly
+    private static final void unregisterTimeLoopThread() {
+        AbstractTimeSource timeSource2 = getTimeSource();
+        if (timeSource2 != null) {
+            timeSource2.unregisterTimeLoopThread();
+        }
+    }
+
+    @InlineOnly
+    private static final Runnable wrapTask(Runnable runnable) {
+        Runnable wrapTask;
+        AbstractTimeSource timeSource2 = getTimeSource();
+        return (timeSource2 == null || (wrapTask = timeSource2.wrapTask(runnable)) == null) ? runnable : wrapTask;
+    }
+}