Malicious PDF — malware analysis report

Heuristics 5

• 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 https://netcdn.tw/app/431946152/roblox-20219-robux-hack-versao-2.390.202159-game-hack In PDF document text

  • http://www.callong.cn/uploaded_files/userfiles/files/coin-master-free-coins-cheat_GM406889139.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/how-many-levels-are-there-in-coin-master_GM406889139.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/e-free-roblox-meaning_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/script-executor-roblox-free_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/op-rewards-robux_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/free-spins-and-coins-coin-master-facebook_GM406889139.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
  • http://www.callong.cn/uploaded_files/userfiles/files/coin-master-event-hack_GM406889139.pdfIn PDF document text
  • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

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