Loading story…
Researchers reported that APT37 targeted Korean users with spear-phishing emails posing as urgent Microsoft Account Team messages and cybersecurity advisories, delivering ZIP archives that contained malicious .lnk files. The shortcut files abused native Windows tools including cmd, PowerShell, and curl.exe to fetch a decoy document and staged payloads, ultimately installing NarwhalRAT, a Python-based remote access trojan compiled from Python code. Genians linked the activity to Korea-focused infrastructure and artifacts, including references to naverwhale, KakaoTalk-related handling, and Korean relay servers.
Once installed, NarwhalRAT established persistence through a scheduled task disguised as a Microsoft task, performed anti-VM checks, and enabled broad surveillance and control functions such as keylogging, screen capture, microphone recording, file transfer, USB data collection, and remote command execution. The malware used a dual command-and-control design that combined Korean relay domains with the pCloud API as a dead-drop resolver, complicating detection and tracking. Researchers urged defenders to strengthen EDR coverage for suspicious LNK-to-PowerShell execution chains, unusual scheduled task creation, unexpected curl.exe activity, and silent Python execution.
Mallory correlates global threat intelligence with your attack surface — know if you’re exposed before adversaries strike.
3 events from the most recent confirmed update back to the earliest known activity.
On June 15, 2026, Cyber Security News reported technical details of the campaign, including ZIP-delivered malicious LNK files abusing CMD, PowerShell, and curl.exe to install NarwhalRAT, along with persistence and anti-VM behavior.
On June 14, 2026, Bluesky posts by lazarusholic shared the Genians report and associated the NarwhalRAT phishing activity with APT37 and DPRK-linked operations.
On April 30, 2026, Genians published a threat intelligence report analyzing a spear-phishing campaign attributed to APT37 that used Microsoft-themed lures, malicious LNK files, and a Python-based NarwhalRAT with dead-drop C2 via pCloud and Korean relay infrastructure.
Vulnerabilities, threat actors, malware, products, organizations, and breaches Mallory has linked to this story.
10 references tracked. Mallory keeps watching after this page renders.
securityonline.info
Open sourcescworld.com
Open sourcethehackernews.com
Open sourcecybersecuritynews.com
Open sourcebsky.app
Open sourcegenians.co.kr
Open sourcegenians.co.kr
Open sourcegithub.com
Open sourceMap indicators from this story to your assets and identify affected systems in minutes.
Every observed campaign, victim, and pivot linked to actors named in this story.
Malware, exploits, and IOCs connected to the activity described here.
YARA, Sigma, and Snort rules deployed to your SIEM as soon as they’re published.
Get matching new stories delivered to your team as they break — not the next morning.
Ask questions about this story and take action on the answers.
Other stories Mallory is tracking that overlap on entities, sources, or topic labels.
Multiple recent intrusion reports describe **phishing-led Windows compromises** that rely on **weaponized `.LNK` shortcuts** to trigger **obfuscated PowerShell** execution, display decoy documents, and then fetch additional payloads from public cloud/code platforms. In South Korea, attackers distributed an LNK disguised as financial trading guidance that opens a decoy PDF while running PowerShell; subsequent stages perform anti-analysis/virtualization checks, establish persistence, and retrieve a masked executable from **GitHub** that decrypts code at runtime to run **MoonPeak** malware. Researchers assessed the activity as likely **North Korea–linked** based on GitHub commit metadata and naming patterns. A separate Russia-targeted campaign used business-themed archives containing decoy documents and a malicious LNK to pull a PowerShell loader that establishes persistence and then weakens defenses (including **Microsoft Defender exclusion changes** and use of **`defendnot`**), performs reconnaissance, and tampers with system tooling and file associations before deploying **Amnesia RAT** (fetched from **Dropbox**) and a **Hakuna Matata–derived ransomware** payload for encryption. By contrast, reporting on **KazakRAT** describes a different espionage operation in Kazakhstan/Afghanistan delivered via malicious **MSI** installers and using simple, unencrypted HTTP C2; it is not part of the LNK/PowerShell delivery chains described in the other incidents.
Jun 29, 2026
FortiGuard Labs reported a high-severity cyber espionage campaign linked to North Korean state-sponsored actors that targets organizations in South Korea with phishing emails carrying malicious Windows `.lnk` files disguised as PDF documents. When opened, the shortcut launches PowerShell and other native Windows scripting tools while showing a decoy document, then performs anti-analysis checks for tools including Wireshark, Fiddler, x64dbg, Procmon, and `vmtoolsd`. Researchers said the operation has been active since at least 2024 and has evolved from earlier, less-obfuscated variants associated with XenoRAT into more sophisticated samples that embed decoding logic and payload data directly in the shortcut file. The malware establishes persistence through a Scheduled Task disguised as a technical paper and set to run every 30 minutes, then collects host data such as OS version, build number, process lists, and keep-alive logs. Operators used trusted GitHub accounts and private repositories as covert command-and-control and data-staging infrastructure, allowing malicious HTTPS traffic to blend with normal web activity while exfiltrating system information and retrieving follow-on instructions. Decoy filenames and metadata, including the "Hangul Document" naming convention, indicate deliberate targeting of South Korean companies and tradecraft aligned with clusters such as **Kimsuky**, **APT37**, and **Lazarus**.
Jun 29, 2026
Multiple campaigns are using phishing emails and archive-based lures to deliver remote access malware through stealthy, multi-stage infection chains. Point Wild documented **Remcos RAT**, **DesckVB RAT**, and a Rust-based **COVERT RAT** being delivered through ZIP attachments, weaponized `LNK` files, obfuscated JavaScript droppers, and hidden PowerShell execution, often with decoy documents to mask activity. The payloads were loaded filelessly through .NET reflection and in-memory execution, with operators abusing legitimate binaries and services such as `aspnet_compiler.exe`, GitHub, and paste or web-hosting platforms to stage malware while evading detection. Reported command-and-control infrastructure included `192.3.27.141:8087`, `172.245.246.77:8080`, and `181.231.253.69:4444`, while observed artifacts included `C:\ProgramData\remcos\logs.dat`, `C:\ProgramData\colors\logs.dat`, and payload names such as `ALTERNATE.dll`, `ClassLibrary3.dll`, `Keylogger.dll`, and `msedge_proxy.exe`. Separate reporting showed the same tradecraft extending beyond custom RATs to commodity remote-access software and credential theft. A campaign targeting Russian aerospace and aviation organizations used invoice-themed phishing and spoofed domains to install a portable **AnyDesk** instance for unattended access, maintain persistence with a scheduled task, minimize visibility with Tray Minimizer, and exfiltrate configuration data through a command-line SMTP mailer; Seqrite linked the activity to **Rare Werewolf (Librarian Ghouls)**. Securonix research cited by Trojan Killer described **VEIL#DROP** using fake document-style JavaScript files, Blogspot-hosted staging, PowerShell download cradles, XOR decoding, and in-memory .NET loading to deploy **PureLog Stealer**, which targets browser credentials, cookies, session tokens, wallet data, and host information. Across the campaigns, the common pattern is phishing-led initial access followed by LOLBins, PowerShell, staged downloads, persistence, and covert data theft or long-term remote control.
Jul 12, 2026