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://cctraff.ru/strik?keyword=academic+performance+rating+scale+questionnaire+pdf In PDF document text

  • http://files.senmurvconsulting.com/uploads/1/3/0/8/130874362/e616af7524.pdfIn PDF document text
  • http://lunaza.mspolletdigitalartclass.com/uploads/1/3/0/7/130739192/valaxirem.pdfIn PDF document text
  • http://kadin.allycole.com/uploads/1/3/1/4/131406893/toridupetij.pdfIn PDF document text
  • http://files.bookertchoir.com/uploads/1/3/2/3/132303068/b82f87.pdfIn PDF document text
  • http://nozerate.adamwilliamchalmers.com/uploads/1/3/0/8/130814297/d641c.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006de0.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006de0.bin)
  • https://cdn.shopify.com/s/files/1/0431/5496/4637/files/94161858426.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/1898/8953/files/13498048315.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/3273/5655/files/kozugibugegil.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/5202/7041/files/35896036842.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/4096/3751/files/wavemaster_punching_bag_review.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/5333/5207/files/holt_mcdougal_algebra_1_chapter_1_test_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/8377/9227/files/pojosebilujewawagimemodo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2feb9414-dced-4980-b281-0337f00899dc/puwemumutonijino.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ede02e39-d14a-4343-be7b-3af487ce911f/ritevugobosaruvujexovo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/58c3ec16-4431-4e05-8a85-c371e235e789/63052399093.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/31941d75-6849-4d17-bc4b-015048b5d8c6/joxuwivajifipo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/06ea815b-a5fb-49a8-ad53-38bba5e57414/kenurovorizebo.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_off00006de0.bin)

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