There's a whole field of law about bankruptcy. In particular, questions about how to value assets are obviously a big component of bankruptcy law.

I imagine "it's complicated" when it comes to intangible/intellectual property like patents, brands, etc.

Currently the company is undergoing volunatry liquidation, a phase during which they try to come to an agreement over their outstanding debts with their creditors, and try to make deals to prevent the worst case of having any outstanding debts at the end. At the same time they liquidate all their assets, so they can pay their creditors. You usually have better negotion skill/market insight/etc., so you can sell your assets at a higher price than the bancruptcy court would.

Usually, you would auction off the assets for the highest price in order to prevent insolvency, but here it seems they thought it would be better to try and defraud the creditors of their money.