The Nomad Ransomware is a variant from the prolific Dharma malware family. As such, it doesn't deviate from the typical Dharma behavior. Still, any files encrypted by the threat will be rendered inaccessible and unusable due to the encryption with a strong cryptographic algorithm. The attackers will then extort their victims for money by promising to then send them the necessary decryption key and software tool.
Whenever the Nomad Ransomware encrypts a file, it will modify that file's original name. The threat will append an ID string, followed by an email address, and finally, a new file extension. The email address used by the Nomad Ransomware is 'email@example.com,' while the extension is '.nomad.' Two ransom notes will then be delivered to the compromised device - one inside a text file named 'info.txt' and another in a pop-up window.
Ransom Note's Overview
The two notes created by the Nomad Ransomware follow closely the typical Dharma model. The text file simply states that users must establish contact with the attackers and leaves them with two email addresses - 'firstname.lastname@example.org' and 'email@example.com.' The instructions in the pop-up window, despite being longer, also lack any meaningful details. They reiterate the same email address and warn victims not to rename any of the encrypted files.
The full text of the note in the pop-up window is:
'YOUR FILES ARE ENCRYPTED
Don't worry, you can return all your files!
If you want to restore them, write to the mail: firstname.lastname@example.org YOUR ID -
If you have not answered by mail within 12 hours, write to us by another mail:email@example.com
We recommend you contact us directly to avoid overpaying agents
Do not rename encrypted files.
Do not try to decrypt your data using third party software, it may cause permanent data loss.
Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.
The text file contains the following message:
all your data has been locked us
You want to return?
write email firstname.lastname@example.org or email@example.com.'