Malicious PDF — malware analysis report

Heuristics 9

• 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.
• Cracked-software lure uses shortlink/download gateway critical PDF_CRACKED_SOFTWARE_SHORTLINK_LURE
  PDF visible text advertises a crack, serial number, archive, or pirated-software download and pairs it with a shortlink or encoded download gateway. This is a high-confidence social-engineering carrier for unwanted software or droppers; the PDF itself is not a parser exploit.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• Cracked-software lure uses download-gateway redirectors high PDF_CRACKED_SOFTWARE_REDIRECTOR_LINK_FARM
  PDF contains multiple cracked-software/keygen/serial-key lure links together with long encoded download-gateway URLs or known crack-download redirector hosts. This is stronger than generic piracy vocabulary: the document is an SEO lure that funnels users through redirect/download infrastructure commonly used for adware, unwanted software, or droppers.
• PDF links to a cracked-software download doorway (base64-obfuscated) high PDF_CRACKED_SOFTWARE_DOWNLOAD_DOORWAY
  PDF's embedded link hides a pirated-software title as a base64 blob inside the URL path/query (and/or carries the ``download|`` doorway-template marker), rather than in visible text. This is a TCPDF-generated SEO doorway that ranks for software-piracy searches and funnels users to fake 'crack/keygen' download pages distributing adware, potentially-unwanted programs, or droppers. The base64 encoding is deliberate obfuscation to evade plaintext lure rules; the PDF itself carries no parser exploit — the risk is the linked crack-download destination.
• PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
  PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://signforcover.com/bagpiper/distracted/?QXV0b0NBRAQXV=fourviere&nineties=&llopart=exin&ZG93bmxvYWR8bHg2TjNwbk1ueDhNVFkxT0RJeE9ETTBOSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA=nippon PDF link annotation

  • https://rwix.ru/autocad-2022-24-1-crack-free-license-key-free-download-3264bit-latest.htmlIn PDF document text
  • https://cannabisrepository.com/wp-content/uploads/2022/07/AutoCAD_Crack___Activation_Code_With_Keygen_Download_For_Windows.pdfIn PDF document text
  • http://mensweater.com/autocad-20-1-crack-with-license-key-download-3264bit-latest/In PDF document text
  • https://silkfromvietnam.com/wp-content/uploads/2022/07/yamabry.pdfIn PDF document text
  • https://earthoceanandairtravel.com/2022/07/23/autocad-pc-windows-april-2022/In PDF document text
  • https://ozosanacr.com/wp-content/uploads/2022/07/honsha.pdfIn PDF document text
  • https://fitnessclub.boutique/autocad-crack-for-pc/In PDF document text
  • https://purosautosdallas.com/wp-content/uploads/2022/07/berreim.pdfIn PDF document text
  • https://coquenexus5.com/autocad-crack-free-registration-code-free-for-windows/In PDF document text
  • https://baukultur.plus/wp-content/uploads/2022/07/AutoCAD_Crack__Download_Updated2022.pdfIn PDF document text
  • https://www.westcliffhard.com/wp-content/uploads/2022/07/AutoCAD.pdfIn PDF document text
  • https://baybenmx.com/wp-content/uploads/2022/07/AutoCAD-12.pdfIn PDF document text
  • https://eveningandmorningchildcareservices.com/wp-content/uploads/2022/07/delahila.pdfIn PDF document text
  • http://www.male-blog.com/wp-content/uploads/2022/07/AutoCAD44.pdfIn PDF document text
  • https://maisonrangee.com/wp-content/uploads/2022/07/AutoCAD__Crack__Free.pdfIn PDF document text
  • https://josebonato.com/autocad-free-x64-2/In PDF document text
  • https://believewedding.com/wp-content/uploads/2022/07/AutoCAD_Crack__Free_License_Key_Download.pdfIn PDF document text
  • https://www.pooldone.com/autocad-crack-pc-windows-2/In PDF document text
  • https://kmtu82.org/autocad-crack-updated-2/In PDF document text
  • https://laissezfairevid.com/autocad-crack-free-3264bit-updated-2022/In PDF document text
  • http://signforcover.com/bagpiper/distracted/?qxv0b0nbraqxv=fourviere&nineties=&llopart=exin&zg93bmxvywr8bhg2tjnwbk1uedhnvfkxt0rjee9ettboshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda=nipponIn PDF document text
  • http://www.tcpdf.orgIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://www.aiim.org/pdfa/ns/extension/In PDF document text
  • http://www.aiim.org/pdfa/ns/schema#In PDF document text
  • http://www.aiim.org/pdfa/ns/property#In PDF document text
  • http://www.aiim.org/pdfa/ns/id/In PDF document text

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