"Infostealer" malware have been in the wild for a long time now. Once the computer's victim is infected, the goal is to steal "juicy" information like passwords, cookies, screenshots, keystrokes, and more. Yesterday, I spotted an interesting sample. It's delivered through an FTP connection. The file (SHA256:2bf9a44bd546e0fd1448521669136220dc49146b0f3a5cd7863698ac79b5e778) is unknown on VirusTotal.

The malware behavior is pretty simple: It scans the complete drive for interesting files. Here is an example: "*pass*.txt":

I also discovered that it searches for other files:

• *seed*.txt
• *ledger*.txt
• *trezor*.txt
• *metamask*.txt
• *bitcoin*.txt
• *words*
• *wallet*.txt
• *.kbdx

Simple but efficient. C2 communications are performed with slimtvsocico[.]fun.

Xavier Mertens (@xme)
Xameco
Senior ISC Handler - Freelance Cyber Security Consultant
PGP Key