Retour 
Summary
In March 2022, researchers spotted a new ransomware family named GoodWill, with a new method to collect the ransom. Instead of requesting payment through crypto coins like other threats such as Night Sky or Hive, GoodWill requests that its victims help vulnerable people by following a sequence of steps, such as donating clothes, feeding less fortunate children, or providing financial assistance to hospital patients.
To prove these actions, the attacker requests the victim to record the good deeds and post the images/videos on Facebook, Instagram, WhatsApp or other social media.
But is GoodWill really a new ransomware family? After analyzing a few samples, Netskope Threat Labs found that this threat is 100% based on an open-source ransomware named Jasmin, which is a red team tool that can be used to simulate real ransomware attacks.
Aside from GoodWill, we also discovered other ransomware variants that were sourced from Jasmin. However, it is unclear if these files are weaponized samples, given the nature of the tool and the fact that we have not seen any evidence that attackers are using GoodWill or any of the variants we found in the wild. It is also possible that attackers could use this source code to easily create weaponized variants.
In this blog post, we will analyze the Jasmin ransomware tool and compare the code / operation with other samples found in the wild, inclu