Malicious PDF — malware analysis report

Heuristics 6

• 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.
• PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
  PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
• 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://gettraff.ru/wb?keyword=freeware%20pdf%20splitter%20and%20merger In PDF document text

  • https://wosezobar.weebly.com/uploads/1/3/1/8/131856012/wakenutikugeza.pdfIn PDF document text
  • https://kagilovudugavap.weebly.com/uploads/1/3/1/1/131164538/lowadifobuxajuxulome.pdfIn PDF document text
  • https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/xorewowezojevav.pdfIn PDF document text
  • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/6641841.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370555/normal_5f8d9b68e7e9f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376849/normal_5f8b4dacc5414.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371536/normal_5f8a2d8922895.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368772/normal_5f8aa81bcb195.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368952/normal_5f8b471b47a43.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387035/normal_5f8e8df3035dd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375073/normal_5f8efc1324dc0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382974/normal_5f8f2e1042c5e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377902/normal_5f9137b243636.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375886/normal_5f8bccfad6a23.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377679/normal_5f8d9606b5a60.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000067f5.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000067f5.bin)
  • https://cdn.shopify.com/s/files/1/0497/1518/3777/files/computerised_accounting_with_tally_calicut_university.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/6787/3182/files/81496483641.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9087/9673/files/baixar_snaptube_apk_atualizado_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0491/8519/4150/files/questbridge_biographical_essay.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9576/2106/files/tuluvewiregosela.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/5417/7185/files/iaf_result_2020_download.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_off000067f5.bin)

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