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=class%2012%20physics%20project%20pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366625/normal_5f909648c3eea.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377936/normal_5f8b37aeb1904.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379612/normal_5f917726e0891.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369336/normal_5f8eaa125d271.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369343/normal_5f89339e21f8c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371807/normal_5f8a7b2bd4e19.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366385/normal_5f93542f3c730.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368225/normal_5f8b61e95fdd0.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/46044098331.pdfIn PDF document text
  • https://s3.amazonaws.com/fatikonavori/matter_classification_worksheet.pdfIn PDF document text
  • https://s3.amazonaws.com/degisapemifa/bitudamufisanupekurixene.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/concepto_analisis_foda.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/nadejefijivu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379370/normal_5f8e8fb08d87c.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007006.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007006.bin)
  • https://uploads.strikinglycdn.com/files/551e56cf-0780-42d9-9b33-0075350866a0/32319126584.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f435c122-0cd5-411f-b7bb-9337aacf8130/duburejiju.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e4f66a6c-0bb2-4dfa-bda8-33091c8c5b09/mp3_rocket_free_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/621cde54-d0b0-4904-b324-e324390be3f4/fallout_tag_skills.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fadf1c31-33f1-4227-8341-34e397cc8bd6/madaru.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0468/8786/2429/files/compass_rv_protection_plan.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/9127/1061/files/votezeluzal.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_off00007006.bin)

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