Threats Tagged 't1132'

An investigation revealed a malicious email campaign directing victims to download a ZIP file from MediaFire. The infection chain began with a Python setup executable (Setu.exe) that side-loaded a malicious 400 MB python37.dll containing repeated byte padding. The DLL performed process injection into dllhost.exe, establishing communication with a C2 server at 138.124.186.2:7000. The threat actor deployed three persistence mechanisms: a PowerShell-based path, a fake EdgeUpdate Python executable with scheduled task, and NetSupport RMM as a third access method. The analysis highlights the importance of comparing file timestamps during triage to identify malicious artifacts within compressed archives.

On May 15, 2026, Huntress agents detected an intrusion where threat actors compromised a terminal server to stage a massive phishing campaign rather than deploy ransomware. The attacker used legitimate bulk email software (Gammadyne Mailer) with a project file named 'dracii' (Romanian for 'the devils') and six recipient lists containing 8,894,920 email addresses. Operating from Romanian IP addresses, the actor impersonated UK pharmacy chain Boots through a fake customer satisfaction survey designed to harvest personal and payment card data. The phishing kit was hosted on a compromised Bolivian government website (ipelc.gob.bo), which Huntress reported to Bolivia's national CSIRT. The campaign used direct-to-MX delivery to bypass mail relays, with the mailer configured to send from 666 threads simultaneously. Evidence suggests this Romanian operator has been running multiple UK-targeting campaigns since at least July 2025, rotating between retail, tax, and cryptocurrency themes.

The hospitality and travel sector experienced a dramatic surge in cyberattacks, with organizations facing an average of 2,291 weekly attacks in May 2026, representing a 24% year-over-year increase and a cumulative 122% rise since 2023. Cybercriminals registered 47,318 travel-related domains in May 2026 alone, with one in every 112 classified as malicious or suspicious. Three coordinated bulk-registration campaigns were identified, including sequential hotel-lure domains, American Express and Lloyds Travel Choice impersonations, and widespread Fora Travel brand abuse across 108 TLDs. Active phishing operations target major platforms including Booking.com, Airbnb, and Skyscanner through lookalike domains designed to harvest credentials and payment information. These attacks deliberately intensify during peak summer booking season when travelers are distracted and eager for deals, exploiting the industry's high volume of personal and financial data processing.

A sophisticated supply chain attack campaign has expanded to 471 affected artifacts across npm and PyPI, targeting developers through malicious packages. The campaign uses three distinct delivery methods: executable .pth startup hooks, trojanized native .abi3.so extensions that execute at import time, and a split loader-payload architecture that searches Python's sys.path. Twenty-three newly identified PyPI packages masquerade as bioinformatics tools, AI frameworks, and popular libraries like requests and Flask. The attack deploys heavily obfuscated JavaScript stealers via Bun runtime, harvesting high-value credentials including GitHub tokens, npm registry access, cloud credentials, SSH keys, and CI/CD secrets. The malware employs anti-analysis techniques with fake LLM prompt-injection headers designed to disrupt AI-assisted security scanners, while targeting developer workstations and automated build environments.

A new post-exploitation red team tool named Splinter has been discovered on customer systems through Advanced WildFire's memory scanning capabilities. Developed in Rust programming language, Splinter is exceptionally large at around 7MB due to statically linked libraries. The tool uses a JSON configuration structure containing implant ID, C2 server details, and operational parameters. It operates through a task-based model with capabilities including Windows command execution, remote process injection, file upload/download, cloud service information gathering, and self-deletion. Communication with the C2 server occurs via HTTPS using specific URL paths for task synchronization, heartbeat connections, and file transfers. While not as sophisticated as Cobalt Strike, Splinter represents a growing variety of penetration testing tools that could potentially be misused by threat actors.

A sophisticated memory-only toolset used by a North Korean Lazarus subgroup targeting financial and cryptocurrency organizations consists of three malware families forming a chain. DPAPILoader decrypts and loads RemotePELoader from disk using Windows Data Protection API. RemotePELoader beacons to command-and-control servers and retrieves RemotePE, a fully-fledged remote access trojan executed entirely in memory without filesystem artifacts. The toolset employs environmental keying via DPAPI, EDR evasion through HellsGate technique and ETW patching, actor-in-the-loop payload delivery, and shared hosting infrastructure on Namecheap. RemotePE features comprehensive RAT capabilities including file operations, process management, command execution, and a plugin system for dynamically loading additional payloads, while maintaining persistence through masquerading as legitimate Windows services.