The file usually arrives via an email containing a link to a cloud storage service like , Dropbox , or Google Drive . This bypasses many standard email filters that block direct attachments. 2. Infection Chain
It scans for specific window titles related to banking applications. Por_Ela.rar
Por_Ela.rar , Fatura_Vencida.rar , Documento_Digital.rar The file usually arrives via an email containing
Once run, it uses DLL Side-Loading to execute malicious code within a legitimate Windows process. 3. Malware Behavior Infection Chain It scans for specific window titles
Connections to unusual IP addresses in Brazil or Portugal.
The archive contains a heavily obfuscated loader.
is typically used as a delivery vehicle for Grandoreiro or similar Banking Trojans . It leverages social engineering—often disguised as digital invoices or legal notifications—to trick users into executing its contents. File Characteristics Format: RAR Archive Common Size: ~5MB to 10MB (varies by version) Primary Target: Windows OS Distribution: Malspam (Malicious Email Spam) 🛠️ Technical Breakdown 1. Delivery Mechanism
