When executed in a controlled sandbox environment like ANY.RUN or Tria.ge , the malware performs the following actions:
The binary imports functions for network communication ( ws2_32.dll ), registry manipulation ( advapi32.dll ), and process injection. BSitter_820.rar
Credential harvesting, browser data exfiltration (cookies, saved passwords), and environment fingerprinting. 2. Initial Triage (Static Analysis) When executed in a controlled sandbox environment like ANY
Large outbound POST requests to unknown IP addresses, particularly those associated with free hosting or VPS providers. 5. Recommendation This archive typically contains a or Downloader designed
This write-up covers the analysis of the BSitter_820.rar file, a sample frequently used in malware analysis and digital forensics training scenarios. This archive typically contains a or Downloader designed to exfiltrate browser data and system information. 1. Executive Summary File Name: BSitter_820.rar Target OS: Windows Malware Type: Infostealer / Trojan
After successfully sending the data, some variants attempt to delete the original executable to minimize the forensic footprint. 4. Forensic Artifacts
It targets Chromium-based browsers to extract Login Data , Web Data , and Cookies . It also searches for cryptocurrency wallet files (e.g., wallet.dat ).