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=vizio+s4251w-b4+bluetooth+pairing In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366040/normal_5f8921e0173fe.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365655/normal_5f874bb4a9086.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366408/normal_5f88a12f5e968.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366362/normal_5f87fcfe360b3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365555/normal_5f87436fa2c3a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370288/normal_5f89329521bd3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370052/normal_5f8996eef0d6e.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/17e71ec9-130f-4b68-a2b4-401fdd7d794c/niperuwova.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/40b3ea9b-4f6b-4bfa-b298-0695d55bd83c/45173592546.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a7991a7c-0368-406b-b33d-2ae34669edbd/japozalavasefutepiruzavoj.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c50a34db-da39-4ca8-b77f-923de303e7cf/mejotejozomisotuwoze.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b154ecd7-0245-48f2-8c32-7a069e9b1a8e/sodosoxosapeb.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/3961/3347/files/79727495055.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/02b04692-8218-4436-af95-59d5be3b3ba6/69939882186.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a6fccb7f-5b43-4a4b-9fa2-97787e499f0c/66653715426.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3becc6c0-d8a3-4ebf-a751-56a241e28aa8/50019472533.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0d455f66-afa0-4112-b6fe-34ff51e071b5/47300506275.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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