All news with #lazarus group tag

🔒 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.

🔒 State-backed North Korean actors are the primary suspects in a roughly $293m theft from KelpDAO, which paused operations after detecting suspicious cross-chain activity involving rsETH. Attackers exploited LayerZero verifier infrastructure by poisoning downstream RPCs, swapping op-geth binaries and executing an RPC‑spoofing attack to forge a cross-chain message. They routed stolen funds through Tornado Cash, while Arbitrum's Security Council has frozen about 30,766 ETH (~$71m). LayerZero contends KelpDAO ran a single-DVN configuration against best practices; KelpDAO blames LayerZero's infrastructure.

🔒 KelpDAO reported a cross-chain exploit on April 18 that resulted in the theft of roughly 116,500 rsETH (about $293 million), funds which were then routed through Tornado Cash. The attacker compromised the verifier's RPC nodes in the DVN layer, feeding falsified chain data while DDoS-ing healthy nodes to force reliance on poisoned endpoints and accept a forged cross-chain message. LayerZero, Unichain and partners assisted in the investigation, which attributed the operation to the state-sponsored Lazarus Group, and KelpDAO paused rsETH contracts across Ethereum mainnet and L2s.

🔒 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.

🛡️ Bitrefill says a cyberattack in early March was likely carried out by North Korea’s Lazarus/BlueNoroff cluster, citing reused IPs, emails, malware, and on-chain tracing as linking indicators. The company traced the intrusion to a compromised employee laptop and stolen legacy credentials that exposed a snapshot containing production secrets and some cryptocurrency wallets. Bitrefill reports about 18,500 exposed purchase records (including 1,000 with names), believes losses were limited and will be covered from capital, and is strengthening security controls and monitoring.

⚠️ South Korean firm Genians links a multi-stage intrusion to the North Korean-affiliated Konni group, which used spear-phishing ZIP attachments containing malicious .LNK shortcuts to deploy an AutoIt remote-access trojan, EndRAT. The shortcut fetches a next-stage payload, establishes persistence via scheduled tasks, and displays a PDF decoy while the malware stealthily exfiltrates documents. Investigators found additional AutoIt artifacts for RftRAT and RemcosRAT, and the attacker abused the victim's KakaoTalk desktop to send infected ZIP files to selected contacts, turning compromised systems into propagation hubs.

🔒 Darktrace's Threat Report 2026 warns that identity-based attacks—primarily via compromised cloud and email accounts—now initiate 58% of intrusions in Europe, with network-based breaches comprising the other 42%. Germany and the manufacturing sector were particularly affected as attackers leverage valid credentials and legitimate admin tools to evade detection. The report highlights state-backed groups (e.g., Lazarus, ShadowPad) and RaaS operators such as Akira, noting heavy targeting of Azure, GCP and Docker environments. Experts recommend continuous monitoring of privileged accounts, hardened MFA, device baselines and behavioral detection to spot anomalies early.

🔐 Symantec and Carbon Black researchers linked a new wave of Medusa ransomware activity to North Korean state-backed actors within the broader Lazarus umbrella, noting deployments against a Middle East target and attempted intrusions into US healthcare. Medusa, a 2023 ransomware-as-a-service operated by Spearwing, has been tied to more than 366 incidents and recent listings of US healthcare and non-profit victims with average demands near $260,000. Analysts observed a toolkit—including Comebacker, Blindingcan, ChromeStealer and Mimikatz—that resembles previous Stonefly operations but cautioned the components are not exclusive to a single sub-group.

🔒 Broadcom's Symantec and Carbon Black Threat Hunter Team reports the North Korea-linked Lazarus Group used Medusa ransomware in an attack against an unnamed Middle East entity and mounted an unsuccessful attempt against a U.S. healthcare organization. Medusa is a RaaS launched by Spearwing in 2023 and has been tied to hundreds of incidents. Analysts say this reflects a tactical shift toward off-the-shelf ransomware and affiliate operations, with the campaign leveraging tools such as RP_Proxy, Mimikatz, Comebacker, InfoHook, BLINDINGCAN, and ChromeStealer.

🔒 Symantec says a North Korean Lazarus subgroup is using Medusa ransomware to extort U.S. healthcare organizations, marking the first public linkage between Lazarus and Medusa. The attacks combine commodity utilities with custom tools — Comebacker, Blindingcan, ChromeStealer, Infohook, Mimikatz and RP_Proxy — and have hit multiple healthcare and non-profit victims. Symantec published IoCs and warns demands can reach $15 million.

🔒 Ten years after the February 2016 operation that attempted to steal $951 million via fraudulent SWIFT messages, the Bangladesh Bank heist remains a defining case for cyber resiliency. Attackers attributed to the Lazarus Group used spear-phishing, backdoors, keyloggers and printer sabotage to capture credentials and erase audit trails, enabling 35 fraudulent transfer attempts. The incident exposed basic control failures—lack of network segregation, exposed SWIFT systems, and limited endpoint monitoring—and helped drive mandatory measures such as the SWIFT Customer Security Program.

🔴 ReversingLabs attributes a coordinated supply-chain campaign, codenamed graphalgo, to the North Korea–linked Lazarus Group, active since May 2025. Attackers set up a fake recruiting front (Veltrix Capital), staged GitHub coding assessments in Python and JavaScript, and published dozens of malicious dependencies to npm and PyPI to infect candidates. One npm package, bigmathutils, accrued over 10,000 downloads before a malicious update; the payload delivers a token-based RAT that performs reconnaissance and file operations. Researchers also disclosed separate npm threats — duer-js (Bada Stealer) and the extortionist XPACK ATTACK — and urge auditing dependencies and verifying package provenance.

🔍 CrowdStrike details that LABYRINTH CHOLLIMA has diverged into three distinct DPRK-linked adversaries — GOLDEN CHOLLIMA, PRESSURE CHOLLIMA, and a narrowed espionage-focused LABYRINTH CHOLLIMA. Each subgroup maintains dedicated malware families and targeting priorities: GOLDEN and PRESSURE focus on cryptocurrency and fintech thefts while core LABYRINTH targets industrial, defense, and logistics sectors. Despite operational separation, shared tools and infrastructure point to centralized coordination within the DPRK cyber ecosystem.

🛡️ Darktrace links a newly observed, heavily obfuscated BeaverTail JavaScript variant to DPRK-associated Lazarus clusters, targeting cryptocurrency traders, developers and retail staff. The cross-platform loader and stealer harvests host details and retrieves follow-on payloads, with recent samples using layered Base64 and XOR encoding. Delivery has expanded via trojanized npm packages, fake interview platforms and command-injection lures.

🔍 A joint investigation by Mauro Eldritch (BCA LTD), NorthScan, and ANY.RUN captured operators from North Korea's Lazarus Group Famous Chollima working through a network of remote IT contractors. Analysts used long-running sandbox VMs that mimicked real developer laptops to observe live activity without alerting the intruders, recording credential collection, AI-assisted interview tooling, OTP handling, and persistent access via Google Remote Desktop. The study found identity and workstation takeover — not traditional malware — as the primary intrusion method, underscoring significant risks in remote hiring and contractor vetting.

🔍 Security researchers revealed a North Korean scheme in which Lazarus-linked Famous Chollima recruits developers to rent their identities and act as frontmen for remote jobs to enable espionage and illicit fundraising. The actors spam GitHub and other platforms, use AI-assisted tools and deepfake techniques, and request identity data and remote-access to engineers' machines. Analysts deployed a sandboxed ANY.RUN honeypot and observed use of AnyDesk, Astrill VPN, OTP extensions, and AI interview assistants to conceal origin and streamline infiltration.

🛡️ The U.S. Treasury on Tuesday sanctioned eight individuals and two entities tied to North Korea's global financial network for laundering proceeds from cybercrime and fraudulent IT-worker schemes. The list names Jang Kuk Chol and Ho Jong Son, linked to $5.3 million in cryptocurrency managed for First Credit Bank, as well as Korea Mangyongdae Computer Technology Company (KMCTC), its president U Yong Su, and Ryujong Credit Bank. Treasury said the funds help finance Pyongyang's weapons and cyber programs, while blockchain firm TRM Labs reported sustained crypto inflows indicative of salary-routing activity.

🔐 This week's recap highlights a broad set of high‑impact threats, from a suspected China‑linked intrusion exploiting a critical Motex Lanscope flaw to deploy Gokcpdoor, to North Korean BlueNoroff campaigns targeting Web3 executives. Researchers disclosed TEE.fail, a low‑cost DDR5 side‑channel that can extract secrets from Intel and AMD TEEs. Also noted: human‑mimicking Android banking malware, WSL‑based ransomware tactics, and multiple high‑priority CVEs.

🚨 BlueNoroff, a North Korea–linked subgroup of the Lazarus Group, has reemerged with two focused campaigns—GhostCall and GhostHire—targeting executives, Web3 developers and blockchain professionals. Operators use social engineering on Telegram and LinkedIn to stage fake investor meetings and recruiter coding tests, then deliver multi-stage, cross-platform malware. Samples were found written in Go, Rust, Nim and AppleScript and deploy implants such as DownTroy, CosmicDoor and Rootroy to harvest crypto keys, credentials and project assets.

🔍 Kaspersky details two tied campaigns, GhostCall and GhostHire, that target Web3 and blockchain professionals worldwide and emphasize macOS-focused infection chains and social-engineering lures. The attacks deploy a range of payloads — DownTroy, CosmicDoor, RooTroy and others — to harvest secrets, escalate access, and persist. Guidance stresses user vigilance, strict dependency vetting, and centralized secrets management. Kaspersky links the activity to the BlueNoroff/Lazarus cluster and notes the actor has increasingly used generative AI to craft imagery and accelerate malware development.