Malicious PDF — malware analysis report

Heuristics 6

• 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.
• PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
  PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
• 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/strik?keyword=schematic+symbols+for+capacitors In PDF document text

  • https://s3.amazonaws.com/xanebavifamopez/bloch_theorem_proof.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/juxewijenonut.pdfIn PDF document text
  • https://s3.amazonaws.com/befarekogol/nine_abdominopelvic_regions_and_organs.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/33270751898.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367916/normal_5f8bd84c92808.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372384/normal_5f889815ba06b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369647/normal_5f95dd11cd0e2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389074/normal_5f8e3375e0b6c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367919/normal_5f976c61cfdd7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365545/normal_5f8716e2661b9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390071/normal_5f93315a0179d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365657/normal_5f91a118d4845.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387244/normal_5f9846e88e675.pdfIn PDF document text
  • https://s3.amazonaws.com/levumoduf/68347375173.pdfIn PDF document text
  • https://s3.amazonaws.com/defipedibe/vegan_bodybuilding_recipe_book.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006d8a.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006d8a.bin)
  • https://cdn.shopify.com/s/files/1/0501/1400/3098/files/paxuvekev.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0493/8819/1906/files/visadijifubuten.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/7204/4697/files/benejitajizipisum.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/3821/4810/files/wovowesajikovetos.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aa80faf3-5960-477b-a5c5-bc974aec7049/xisagikilak.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e08cf578-a1fe-4822-b68b-1b696d1ff26e/kumum.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 extracted file (font_00_sfnt_off00006d8a.bin)

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