All news with #spear phishing tag

🛡️ This Unit 42 report examines how threat actors use Microsoft Teams to impersonate IT staff, leveraging external chat and compromised or typosquatted accounts to phish employees. It outlines real-world incidents, explains how permissive federation and external chat settings widen the attack surface, and emphasizes that identity systems are the ultimate target. The article recommends tighter configuration, identity-centric controls, monitoring, and updated user training.

🔒 WhatsApp says it detected and disrupted spear‑phishing campaigns it attributes to the NSO Group after investigating user reports of social‑engineering attacks. Meta reports the phishing lures redirected targets to external websites and that test accounts and groups linked to the activity were removed. The company provided three domains as indicators of compromise and urged users to update apps and enable protections such as Advanced Protection on Android and Lockdown Mode on iOS.

🛡️ A joint bulletin from the FBI, MI5, ASIO, CSIS and NZSIS warns that Chinese military intelligence is using professional networking sites and job platforms to recruit Western workers into sharing sensitive information. The advisory details fake cover companies, targeted outreach on platforms like LinkedIn, and staged hiring processes that escalate from innocuous reports to requests for privileged material via encrypted messaging. Targets include military personnel, academics, journalists, and think-tank staff, and payments are made through common money-transfer and crypto services. The agencies urge scepticism toward unsolicited, well-targeted approaches and rapid moves to encrypted apps.

🛡️ ESET has identified a new Android spyware family named Asin that targets Arabic-speaking users through multiple campaigns observed since early 2025. The malware was distributed via fake websites impersonating a government news source, a PDF editor, and a live war map, and was promoted on social platforms like Facebook and Telegram. Infections require manual APK installation and permission grants, with samples found on devices in Türkiye and on Xiaomi devices running Android 15. Attribution and precise objectives remain unknown, though journalists and OSINT researchers are likely targets.

🛡️ Researchers from WithSecure uncovered a Russian-aligned group dubbed Greyvibe that extensively leverages large language models across its campaigns targeting private, government, and military organizations in Ukraine. The group uses spear phishing, fake websites, malicious archives, and ClickFix-style CAPTCHAs to deliver custom malware such as PhantomRelay, LegionRelay, and Android spyware FallSpy. Observed tooling and infrastructure indicate systematic use of generative AI for lure creation, code development, and backend setup, blurring lines between state-aligned activity and cybercrime ecosystem actors.

🔒 The FBI warns that the Silent Ransom Group (SRG), also known as Luna Moth and UNC3753, has increasingly targeted US law firms since 2023 using advanced social engineering. SRG has shifted from phishing and callback tactics to impersonating IT staff via phone and in-person visits to gain remote or physical access. Once inside, actors use legitimate tools like WinSCP or renamed Rclone to exfiltrate data without encrypting systems. The FBI recommends stronger cyber hygiene, phishing-resistant MFA, visitor verification, and limiting remote access and external drive installation on sensitive endpoints.

🔒 Threat actor KongTuke has begun using Microsoft Teams to socially engineer employees and quickly gain persistent network access. Attackers impersonate IT staff, trick victims into running a malicious PowerShell command, and deploy ModeloRAT via a Dropbox-hosted ZIP containing a portable WinPython runtime. ReliaQuest observed the campaign active since April 2026, with attackers rotating Microsoft 365 tenants and employing Unicode tricks to appear legitimate. The malware includes resilient C2, multiple access paths, and persistence methods that can survive standard cleanup.

🧊 ESET telemetry details newly observed operations by the FrostyNeighbor actor, targeting governmental, military and key sectors in Ukraine and neighbouring Eastern European countries. The March 2026 campaign begins with spearphishing PDFs that link to RAR archives containing a JavaScript dropper; the script deploys a JavaScript variant of PicassoLoader which fetches and executes a Cobalt Strike beacon. Operators use server-side validation of IP and user agent to restrict final payload delivery and often host infrastructure behind Cloudflare. The group also employs diverse lure formats and exploit chains to evade detection.

🔒 Arctic Wolf attributes a large-scale spear-phishing campaign to BlueNoroff, a subgroup of the Lazarus Group, which targeted more than 100 cryptocurrency and fintech organizations across 20+ countries. The operation used typosquatted Zoom and Microsoft Teams links, manipulated Calendly invites, fake meeting interfaces and ClickFix-style clipboard injection to harvest credentials and wallet data. Researchers observed a self-sustaining deepfake pipeline, PowerShell-based C2, AES-encrypted browser payloads and Telegram-based exfiltration, with some intrusions persisting for 66 days.

❄️UNC6692 uses social engineering and Microsoft Teams to deliver a custom malware suite dubbed Snow. The attackers combine an 'email bombing' tactic with Teams messages posing as IT helpdesk staff to lure victims into installing a fake patch. The link drops AutoHotkey scripts that load SnowBelt, a malicious Chrome extension that operates in a headless Edge session, establishing persistence and relaying commands to a Python backdoor via a WebSocket tunneler.

🔒 Mandiant attributes a newly documented cluster, UNC6692, with social-engineering campaigns via Microsoft Teams that coerce victims into installing malicious software and browser extensions. The actor leverages large-scale email-bombing to create urgency, then impersonates IT helpdesk staff to deliver an AutoHotkey-based installer hosted on attacker-controlled AWS S3. That installer loads the SNOW malware family — including SNOWBELT, SNOWGLAZE, and SNOWBASIN — enabling credential theft, tunneling, lateral movement, and data exfiltration.

🔒 North Korea–linked APT37 has been observed using Facebook friend requests and Messenger to build trust with targets before moving conversations to Telegram and distributing a ZIP archive containing a trojanized Wondershare PDFelement. The tampered installer executes encrypted shellcode that contacts a compromised legitimate site, japanroom[.]com, to fetch a seemingly benign JPG which stages the RokRAT payload. The malware then leverages Zoho WorkDrive for command-and-control, enabling screenshots, remote command execution via cmd.exe, host reconnaissance, and evasion of security products.

🛡️ Cisco Talos has identified a new Lua-based backdoor called LucidRook used in October 2025 spear-phishing operations targeting NGOs and universities in Taiwan. Attackers delivered payloads via password-protected archives and deployed either an LNK shortcut chain that dropped a loader named LucidPawn or a fake antivirus EXE. LucidPawn sideloads a malicious DLL (DismCore.dll) and embeds a Lua interpreter to fetch obfuscated bytecode, enabling modular updates while reducing forensic visibility. Collected reconnaissance is RSA-encrypted and exfiltrated via FTP; a related tool, LucidKnight, was observed abusing Gmail GMTP for data exfiltration.

🔍 Cisco Talos attributes a previously undocumented cluster, UAT-10362, to targeted spear‑phishing against Taiwanese NGOs and suspected universities, deploying a new Lua‑based stager named LucidRook. The actor uses RAR/7‑Zip lures and a dropper called LucidPawn, relying on repeated DLL side‑loading to execute payloads. LucidRook embeds an Lua 5.4.8 interpreter and Rust libraries to fetch and run encrypted Lua bytecode, while some variants use a reconnaissance DLL, LucidKnight, to profile targets before staging further activity.

🔒 A spear-phishing campaign targeting Middle Eastern civil society and journalists has been linked to the South Asian threat actor Bitter, according to Access Now and mobile-security firm Lookout. Active from 2023 through 2025, the operation used Android spyware tracked as ProSpy and deceptive staging sites to deliver malicious APKs and harvest credentials. Attackers attempted Apple and Google account takeovers and could exfiltrate files, messages, contacts, geolocation and remotely enable microphones and cameras.

🔎 Access Now, Lookout, and SMEX report a coordinated hack-for-hire campaign that targeted journalists, activists, and officials across the MENA region from 2023–2025. The operation used spear-phishing, OAuth consent-based pages, and messaging-platform lures to harvest credentials and two-factor codes. Observed domains impersonated Apple, Signal, Telegram, and Android services, and infrastructure overlaps link activity to a cluster known as Bitter. One Apple account was compromised while other intrusion attempts were blocked.

🔍 Trend Micro links a targeted spear-phishing campaign to APT28 that delivers a previously undocumented malware suite called PRISMEX, active since at least September 2025. The operation blends steganography, COM DLL hijacking, and abuse of legitimate cloud services to retrieve and execute in-memory payloads. Researchers observed rapid weaponization of CVE-2026-21509 and CVE-2026-21513, with overlapping infrastructure such as "wellnesscaremed[.]com". The toolkit includes PrismexSheet, PrismexDrop, PrismexLoader and a COVENANT-based stager that has been associated with both espionage and destructive wiper activity.

🛡️ Cisco Talos disclosed a targeted spear‑phishing campaign delivering LucidRook, a Lua‑based stager that embeds a Lua 5.4 interpreter and Rust‑compiled libraries inside a DLL to fetch and run staged Lua bytecode. The threat actor delivered payloads via password‑protected archives and used decoy documents to distract victims while the dropper executed. Two delivery chains were observed — an LNK dropper LucidPawn and a .NET EXE masquerading as antivirus — both abusing public FTP services and OAST domains. Execution is gated to Traditional Chinese locales linked to Taiwan.

🔔 The UK's National Cyber Security Centre (NCSC) has warned of an increase in targeted attacks against users of messaging apps including WhatsApp, Facebook Messenger and Signal, attributing activity to Russia-based actors and noting similar prior activity by APT31 and IRGC-linked hackers. Attackers use malicious links, QR codes, account takeovers, group infiltration and impersonation to steal credentials or deliver malware. The NCSC advises high-risk users to enable multi-factor authentication, avoid sharing verification codes, regularly review linked devices and use corporately managed messaging services for work.

🔒 Proofpoint disclosed a targeted email campaign by Russia-linked TA446 that leverages the leaked DarkSword iOS exploit kit to target iPhones. The group used spoofed "discussion invitation" messages impersonating the Atlantic Council to deliver the GHOSTBLADE dataminer and, in some instances, the MAYBEROBOT backdoor via password-protected ZIPs. Proofpoint noted sharply increased message volume and server-side filtering that routes only iPhone browsers to the exploit chain. Apple has issued lock-screen warnings urging immediate updates to block the threat.