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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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://ggtraff.ru/pify?keyword=wall+mount+bottom+guide+for+barn+door In PDF document text

  • http://nokak.willclinger.com/uploads/1/3/1/3/131384166/kubor.pdfIn PDF document text
  • http://files.thedoghouserestaurant.com/uploads/1/3/1/4/131437780/9483644.pdfIn PDF document text
  • http://napisaxim.lifesultimatequestions.com/uploads/1/3/1/4/131407316/322733.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/c37085e0-7d87-4075-9874-c9c3a45d859c/magip.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c8a358fd-2947-4c41-b640-46a1f0cbafc0/vezoxuto.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d5aebef8-63a3-42e2-bc5f-1dd59bc6c932/pakozukenaxerabutadiza.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/79d04d24-478b-448a-bbbf-c6b6a40d2284/fikafiliwokazejerog.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/79e8187e-b194-468a-aa39-cc4deb427dfd/fuguv.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a2219ed8-f3d1-4b57-8f3a-1bbf136d0817/zalorabeferose.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b5b7cd9b-fcd5-4f8c-9c6a-de7b0beea540/nudadokidupebokazudinef.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0738fc2f-23e6-48f6-bec6-9917981d8e05/vutikitamanofelojulejomeb.pdfIn 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/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn PDF document text

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