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Inbound Social Engineering and Malware Delivery Campaigns Targeting Crypto, Web3, and Enterprises

social-engineeringphishingspoofinginfostealerMicrosoft 365Web3cryptobackdoorDMARCDKIMcryptocurrencytrojanizedimpersonatingTCPDLL
Updated January 12, 2026 at 10:04 PM4 sources
Inbound Social Engineering and Malware Delivery Campaigns Targeting Crypto, Web3, and Enterprises

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Multiple reports describe social-engineering-led initial access that pivots into malware execution and credential/financial theft. A documented “pig butchering” approach abuses the higher-trust dynamics of matrimonial platforms to build rapport and then steer victims toward cryptocurrency-related actions. Separately, an “inbound” recruitment lure targets Web3/crypto professionals by impersonating legitimate companies and driving candidates to install fake interview software (e.g., collaborex_setup.msi) that initiates command-and-control to infrastructure such as 179.43.159.106, with the added risk that victims often use corporate endpoints that also have personal wallets installed.

In parallel, technical reporting highlights enterprise-focused malware delivery via trojanized software and email. ValleyRAT_S2 (a C++ second-stage backdoor/RAT) is being distributed via fake Chinese-language productivity tools, cracked software, and trojanized installers, including DLL side-loading (e.g., a malicious steam_api64.dll) and C2 over custom TCP (e.g., 27.124.3.175:14852), enabling long-term control and theft of financial data. Kaspersky also reported a malicious-email wave against Russian private-sector organizations using a PDF-icon masquerade that drops a .NET downloader, installs a persistent service, and stages payloads under C:\ProgramData\Microsoft Diagnostic\Tasks before delivering an infostealer. A separate blog post discusses phishing enabled by misconfigured Microsoft 365/hybrid Exchange mail routing and weak SPF/DKIM/DMARC enforcement, allowing spoofed “internal” emails that can facilitate credential theft and BEC; while related in theme (phishing), it is not clearly tied to the same malware campaigns described elsewhere.

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Phishing and social-engineering campaigns increasingly abuse trusted channels and identities to deliver malware

Phishing and social-engineering campaigns increasingly abuse trusted channels and identities to deliver malware

Multiple reports highlight a surge in **social-engineering-led initial access**, with attackers increasingly relying on trusted-looking delivery mechanisms rather than novel exploits. Microsoft-described activity impersonates *Zoom*, *Microsoft Teams*, and *Adobe Reader* updates and uses **stolen Extended Validation (EV) code-signing certificates** (including one issued to **TrustConnect Software PTY LTD**) to make malicious executables appear legitimate; lures include fake meeting invites and deceptive download sites, and payloads commonly install **RMM tooling** such as *ScreenConnect* and *MeshAgent* for persistent access, followed by additional tooling via encoded PowerShell. Separately, Moonlock reported a **ClickFix**-style operation targeting crypto/Web3 professionals via **fake venture capital personas on LinkedIn**, redirecting victims through Calendly to spoofed video-conferencing pages to induce execution of attacker-supplied commands, with infrastructure tied to multiple fake firms (e.g., *SolidBit Capital*, *MegaBit*, *Lumax Capital*) and domains attributed to a single registrant. In parallel, NCC Group’s Fox-IT assessed that **messaging platforms** (e.g., WhatsApp, Telegram, Discord, Signal, LinkedIn messaging) are increasingly used to deliver phishing links, malicious attachments, QR codes, and fake invitations while bypassing traditional email controls, and that Telegram in particular is also used to host phishing infrastructure, malware repositories, and bot-enabled fraud services. One referenced item is materially different from the above social-engineering theme: reporting on suspected **DPRK-linked intrusions** into cryptocurrency organizations describes web-app exploitation (including `CVE-2025-55182` in *React2Shell*) and the use of pre-obtained **AWS access tokens** to steal source code, private keys, and cloud secrets—an intrusion set focused on direct compromise and theft rather than the phishing/update-impersonation and messaging-platform delivery techniques described elsewhere.

1 weeks ago
Malware Campaigns Using Social Engineering to Deliver Proxyware, RATs, and Ransomware

Malware Campaigns Using Social Engineering to Deliver Proxyware, RATs, and Ransomware

Multiple active malware campaigns are using **social engineering** and **trojanized content** to compromise Windows systems, with lures ranging from pirated software downloads to business and shipping documents. AhnLab reported a “proxyjacking” operation attributed to **Larva-25012** that distributes fake installers (notably a trojanized *Notepad++* package) via cracked-software sites; the `Setup.zip` bundle includes a legitimate `Setup.exe` plus a malicious sideloaded DLL (`TextShaping.dll`) that decrypts and installs **DPLoader** for persistent command retrieval and follow-on payload delivery. The malware also tampers with defenses by changing Microsoft Defender settings (e.g., exclusions, reduced notifications, and blocking sample submission) to reduce detection while monetizing victims’ bandwidth through installed **proxyware**. Separately, FortiGuard Labs described a Russia-focused, multi-stage intrusion chain that abuses trusted services (**GitHub** and **Dropbox**) for payload hosting and weaponizes **Defendnot** (a Windows Security Center trust-model research tool) to disable **Microsoft Defender** before deploying a ransomware payload. Fortinet also documented phishing campaigns using weaponized shipping-themed Word documents to deliver **Remcos RAT**, including fileless execution behavior and exploitation of `CVE-2017-11882` (Microsoft Equation Editor) via remotely fetched templates. These campaigns reinforce the operational risk from user-driven execution paths (pirated installers and document lures), “living off the land” techniques, and defense evasion through both policy tampering and security tooling abuse.

1 months ago
Malware Delivery via Deceptive Lures: Malvertising, Fake Recruitment Repos, and Phishing Dropping RATs

Malware Delivery via Deceptive Lures: Malvertising, Fake Recruitment Repos, and Phishing Dropping RATs

Multiple reports detail **social-engineering-driven malware delivery** that results in **remote access trojans (RATs)** and credential theft. Infoblox described observing an affiliate push-notification ad network after exploiting misconfigured DNS delegations (“**Sitting Ducks**”/lame name server delegation) to take over abandoned threat-actor domains, allowing collection of **~57M logs** over two weeks and visibility into widespread **scams and brand impersonation** delivered via push ads. Nextron Systems separately reported recurring **malvertising** chains where “free converter” tools (e.g., document/image converters) downloaded from ads on legitimate sites function as advertised while covertly installing **persistent RATs**, with common artifacts such as Windows **Mark-of-the-Web** (`ZoneId=3`) indicating internet origin. Other activity in the set reflects different initial-access lures but the same general outcome—RAT-style access and data theft. Fortinet analyzed a **phishing** campaign using a fake Vietnam shipping document: a Word attachment leads to an RTF stage that exploits an RTF-related vulnerability, then uses **VBScript/PowerShell** to load a **fileless .NET module**, ultimately downloading and injecting a **Remcos** variant (including process hollowing) to provide full remote control. Separately, reporting on North Korea’s **“Contagious Interview”** campaign described fake recruiter outreach (e.g., via LinkedIn) that tricks developers into opening malicious code repositories; execution can be triggered via a hidden **VS Code `tasks` configuration**, server-side logic hooks, or a malicious npm dependency to steal credentials/crypto wallets and establish persistence—this is thematically similar (social engineering leading to remote access) but is a distinct operation from the malvertising/push-ad and Remcos phishing activity.

2 months ago

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