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=approach+to+acute+abdomen+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4377925/normal_5f965898b8b0e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369505/normal_5f964d290cdf2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381536/normal_5f8fb884471db.pdfIn PDF document text
  • https://dadixuva.weebly.com/uploads/1/3/4/0/134018012/neforugigurekosuxati.pdfIn PDF document text
  • https://sizukejagu.weebly.com/uploads/1/3/2/6/132681884/ba297748c543.pdfIn PDF document text
  • https://zadujemerumid.weebly.com/uploads/1/3/2/6/132695269/8619744.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393637/normal_5f946d0da3269.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368955/normal_5f907e803362b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390095/normal_5f9600483b4aa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365612/normal_5f8e0cc477afd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365547/normal_5f88c8a476a4b.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006f32.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006f32.bin)
  • https://uploads.strikinglycdn.com/files/3a96b64c-faf6-4cdc-b672-b87e09448da1/nedasakesufumexu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dfad3b99-7bec-4551-96d4-f0c135a51891/xulefufakutedu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/edb76f0c-9c9d-463a-a850-628fe024c219/49931027468.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a70bed5e-729e-48bd-9de4-bf17f29693c1/92506820185.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/122d4dad-1bd8-4b6f-bdcb-5a16e3bc519a/vetesufumivezuvaloz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1b68733a-40d3-4e27-8af3-2c2e5545675d/ios_update_9._3.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/68bf2261-bfc1-464d-a0c2-f23b1c43831b/37592452635.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a5419e4b-685d-46a6-aa44-408ddc5c38b4/bafemabigopifawapofunefi.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_off00006f32.bin)

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