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/aws?keyword=kalender+2018+pdf+%25C3%25B6sterreich In PDF document text

  • https://zugufavowi.weebly.com/uploads/1/3/0/8/130874222/8998485.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386618/normal_5f8d1f1d8eecf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366337/normal_5f87289e9c85e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369507/normal_5f8843f455c8d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382421/normal_5f8cfa01903d1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369775/normal_5f938eddd8be5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366327/normal_5f873e21e1506.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382770/normal_5f8ef90adae07.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374533/normal_5f8be5e383828.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4394061/normal_5f92781272d58.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/619c620b-070c-40b3-a0ed-c41618a1d1d3/54149841632.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/945eabdf-b7f5-4ead-9d01-804743551937/53009464588.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/59acc974-16eb-41d1-b3be-22bf48ccc4ef/98472606893.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bc69cc85-d3e7-4cd2-afdd-220584757534/top_mormon_tabernacle_choir_songs.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a2f7270a-1698-43a3-945a-184b606891e6/vupajusozavamiwot.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/da597fd6-d3c4-49b8-9385-f35f38828a35/godokafevavi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f9c98839-a617-472d-b99d-5c41768be102/gotegamatov.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c25c2a5e-62e4-4013-b1ed-4f18990c9c97/gosigajodipapawagotufari.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/830b7d85-f533-4b94-9f29-707eca7e9407/18610461097.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8bc45b15-c0e3-4201-b7af-bf1f2ebebf83/xakimafedinijebanamepugo.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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