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/wb?keyword=normas%20apa%20citar%20documento%20pdf In PDF document text

  • https://rikisuluwujufa.weebly.com/uploads/1/3/1/4/131452938/0682a18976.pdfIn PDF document text
  • https://sedifuwenute.weebly.com/uploads/1/3/4/4/134464273/tazagovaju.pdfIn PDF document text
  • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/bewoti.pdfIn PDF document text
  • https://juporolo.weebly.com/uploads/1/3/1/3/131380745/9726988.pdfIn PDF document text
  • https://s3.amazonaws.com/migivewuwe/vastu_shastra_books_in_bengali.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/46676817651.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/62994273955.pdfIn PDF document text
  • https://s3.amazonaws.com/mukut/libro_manual_de_epidemiologia_y_salud_publica.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369802/normal_5f8c183edeae2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370267/normal_5f8a8e2356c03.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368731/normal_5f8b3b90309cc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370270/normal_5f8a4d85ac88f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373241/normal_5f8a4713efef4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378404/normal_5f8a6767b4e41.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006814.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006814.bin)
  • https://uploads.strikinglycdn.com/files/fc58c449-5658-4926-8501-e5593bfba7f1/89597223877.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/598c4793-f110-4fb7-ac55-e26f7fcee390/19429440259.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1f602406-5b7a-4980-b724-09e27a15badc/56959944384.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/15034918-2151-4fec-a185-206ef34becaf/lilekizidoxive.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_off00006814.bin)

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