OPERATION MONEYMOUNT-ISO — DEPLOYING PHANTOM STEALER VIA ISO-MOUNTED EXECUTABLES

Summary from the TLDR InfoSec newsletter

A new group is running a phishing campaign that impersonates payment confirmations to trick finance-related staff into opening a ZIP file containing a malicious ISO image. Once mounted and executed, the ISO drops a multi-stage payload chain that ultimately runs Phantom Stealer, which uses DLL injection, anti-analysis checks, and steganography to load and hide its code. The stealer targets browser credentials, cookies, credit cards, crypto wallets, Discord tokens, clipboard data, keystrokes, and selected files, then exfiltrates everything via Telegram bots, Discord webhooks, or FTP.