Malicious PDF — malware analysis report

Heuristics 6

• PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
  PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL http://netcdn.tw/app/406889139/how-to-hack-coin-master-game-ios-game-hack In PDF document text

  • http://www.callong.cn/uploaded_files/userfiles/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/free-robux-on-ipad_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/roblox-player-apk-free-download_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/minecraft-free-download-apk-softonic_GM479516143.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/roblox-script-hack-pet-simulator_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/how-to-get-free-robux-on-ipad-2021_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/google-play-coin-master-free-spins_GM406889139.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/claim-coin-master-free-spins_GM406889139.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/roblox-piano-hack_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/how-to-get-free-robux-the-real-way_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/free-robux-reddit_GM431946152.pdfIn PDF document text
  • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

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