Friday, April 12, 2024

New Tycoon 2FA Phishing Kit Attacking Microsoft 365 & Gmail Users

Hackers use 2FA (Two-Factor Authentication) phishing kits to overcome the additional security layer provided by 2FA. 

These kits typically mimic legitimate login pages and prompt users to enter their credentials along with the one-time passcodes generated by their authenticator apps or sent via SMS.

Through proactive threat hunting, Sekoia analysts uncovered a new and widespread Adversary-in-The-Middle (AiTM) phishing kit called Tycoon 2FA in October 2023. 

This Phishing-as-a-Service (PhaaS) platform has been actively used by multiple threat actors since at least August 2023 to conduct effective phishing attacks. 

Continuous monitoring revealed Tycoon 2FA as one of the most prevalent AiTM kits, with over 1,100 associated domains identified between late October 2023 and late February 2024.

Technical Analysis

Phishing using QR codes increased in October 2023. Many AiTM phishing pages shared similarities like:- 

  • Deobfuscated scripts
  • CloudFlare Turnstile for protection
  • Specific CSS resources
  • WebSocket for data exfiltration
Email attachments redirecting users to Tycoon 2FA phishing pages (Source – Sekoia)

Using, researchers identified hundreds of similar phishing pages in October 2023 by searching for specific CSS filenames.


Free Webinar : Mitigating Vulnerability & 0-day Threats

Alert Fatigue that helps no one as security teams need to triage 100s of vulnerabilities.:

  • The problem of vulnerability fatigue today
  • Difference between CVSS-specific vulnerability vs risk-based vulnerability
  • Evaluating vulnerabilities based on the business impact/risk
  • Automation to reduce alert fatigue and enhance security posture significantly

AcuRisQ, which helps you to quantify risk accurately:

The pages retrieved resources from codecrafterspro[.]com, which appeared central.

Other associated domains like codecrafters[.]su and devcraftingsolutions[.]com hosted phishing resources with a “Powered by TycoonGroup” login panel. 

The tycoongroup[.]ws domain promoted Tycoon as the “best 2FA bypass phishing platform”, linking this infrastructure to the Tycoon 2FA phishing platform.

Login page of Tycoon 2FA administration panel (Source – Sekoia)

Researchers analyzed the victim-facing interactions without access to Tycoon’s source code.

It uses AiTM, with an attacker server hosting the phishing page, relaying inputs to the legitimate service, prompting MFA, and capturing session cookies after successful MFA. 

The stolen cookies allow bypassing MFA by replaying the session, even if credentials were changed. The key operations of Tycoon are outlined below.

Main operations specific to the Tycoon 2FA phishing kit (Source – Sekoia)

There are a total 7 stages and here below we have mentioned them:-

  • Stage 0 – Spreading phishing pages
  • Stage 1 – Cloudflare Turnstile challenge
  • Stage 2 – Email extractor
  • Stage 3 – Redirection page
  • Stage 4 – Fake Microsoft authentication login page and sockets
  • Stage 5 – 2FA relaying
  • Stage 6 – Final redirection

The Tycoon 2FA phishing kit harvests credentials via fake Microsoft pages, with a C2 server collecting data over WebSockets.

The latest version added stealth tactics like only providing malicious resources after solving a CloudFlare challenge, using randomized URLs, and filtering traffic to evade analysis. 

While previous versions used characteristic filenames for core functionality, the new changes make tracking more difficult. 

However, Sekoia found heuristics correlating legitimate resource names, C2 response data size and resource lengths to continue monitoring the evolving Tycoon 2FA infrastructure.

Tycoon 2FA became widespread, and the developer enhanced stealth capabilities in the recent version.

With its ease of use and low price, it gained popularity among threat actors. 

Sekoia identified over 1,200 associated domain names since August 2023 and believes the Tycoon Group operations are highly lucrative, expecting Tycoon 2FA to remain a prominent threat in the AiTM phishing market in 2024.


  • 0q5e0.nemen9[.]com
  • 25rw2.canweal[.]com
  • 35fu2.ouchar[.]ru
  • 4343w.jgu0[.]com
  • 43rw98nop8.m1p8z[.]com
  • 4m2swl.7e2r[.]com
  • Cybersecurity Threats5me78.methw[.]ru
  • 6j312.rchan0[.]com
  • 77p3e.rimesh3[.]com
  • 8000n.uqin[.]ru
  • 8uecv.gnornamb[.]com
  • 98q5e.ructin[.]com
  • 9c43r.theq0[.]com
  • 9oc0y2isa27.demur3[.]com
  • beacon.diremsto[.]com
  • bloggcenter[.]com
  • buneji.fiernmar[.]com
  • e85t8.nechsha[.]com
  • ex1uo.rhknt[.]ru
  • explore.atlester[.]ru
  • fiq75d.rexj[.]ru
  • fisaca.trodeckh[.]com
  • galume.aricente[.]com
  • gz238.uatimin[.]com
  • horizon.sologerg[.]com
  • jp1y36.it2ua[.]com
  • k348d.venti71[.]com
  • kjlvo.ningeona[.]com
  • kjsdflwe.nitertym[.]ru
  • l846d.ferver8[.]com
  • libudi.oreversa[.]com
  • n29k4.ilert[.]ru
  • n9zph.lw8opi[.]com
  • o6t94g.3tdx2r[.]com
  • oo99v.coqqwx[.]ru
  • p1v12.17nor[.]com
  • pmd8ot6xhw.3qjpc[.]com
  • q908q.refec7[.]com
  • r298y.sem01[.]com
  • rlpq.tk9u[.]com
  • roriku.orankfix[.]com
  • tlger-surveillance[.]com
  • tnyr.moporins[.]com
  • wasogo.shantowd[.]com
  • x12y.restrice[.]ru
  • xrs.chenebystie[.]com
  • xva.tjlpkcia[.]com
  • zaqaxu.dthiterp[.]ru
  • zekal6.tnjxb[.]com
  • zemj4f.ymarir[.]ru

Cryptocurrency Wallet Address

  • 19NReVFKJsYYCCFLq1uNKYrUqQE2bB4Jwx used by Saad Tycoon Group

Stay updated on Cybersecurity news, Whitepapers, and Infographics. Follow us on LinkedIn & Twitter.


Latest articles

6-year-old Lighttpd Flaw Impacts Intel And Lenovo Servers

The software supply chain is filled with various challenges, such as untracked security vulnerabilities...

Hackers Employ Deepfake Technology To Impersonate as LastPass CEO

A LastPass employee recently became the target of an attempted fraud involving sophisticated audio...

Sisence Data Breach, CISA Urges To Reset Login Credentials

In response to a recent data breach at Sisense, a provider of data analytics...

DuckDuckGo Launches Privacy Pro: 3-in-1 service With VPN

DuckDuckGo has launched Privacy Pro, a new subscription service that promises to enhance user...

Cyber Attack Surge by 28%:Education Sector at High Risk

In Q1 2024, Check Point Research (CPR) witnessed a notable increase in the average...

Midnight Blizzard’s Microsoft Corporate Email Hack Threatens Federal Agencies: CISA Warns

The Cybersecurity and Infrastructure Security Agency (CISA) has issued an emergency directive concerning a...

Taxi App Vendor Data Leak: 300K Passengers Data Exposed

Around 300,000 taxi passengers' personal information was left exposed on the internet, causing concern...
Tushar Subhra Dutta
Tushar Subhra Dutta
Tushar is a Cyber security content editor with a passion for creating captivating and informative content. With years of experience under his belt in Cyber Security, he is covering Cyber Security News, technology and other news.

Top 3 SME Attack Vectors

Securing the Top 3 SME Attack Vectors

Cybercriminals are laying siege to small-to-medium enterprises (SMEs) across sectors. 73% of SMEs know they were breached in 2023. The real rate could be closer to 100%.

  • Stolen credentials
  • Phishing
  • Exploitation of vulnerabilities

Related Articles