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://cctraff.ru/wb?keyword=evaluation%20cm2%20les%20aires In PDF document text

  • https://s3.amazonaws.com/xurixado/hindi_alphabet_tracing_worksheets.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/54772777766.pdfIn PDF document text
  • https://s3.amazonaws.com/magapeguwabe/zezafezemamofetu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365602/normal_5f89bd2661a95.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370555/normal_5f89846259c07.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379959/normal_5f8b9d2ad4ada.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365525/normal_5f883d5f7e787.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366400/normal_5f903afe98f80.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369930/normal_5f8c0d6b935ce.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368997/normal_5f89185d9e3c9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369629/normal_5f8e208c70a22.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369626/normal_5f888d5b3077c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365613/normal_5f8872167a419.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367617/normal_5f8f597780d27.pdfIn PDF document text
  • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/330649.pdfIn PDF document text
  • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/2919036.pdfIn PDF document text
  • https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/tejerukofariseg-rumomafox-diweva-sefipililaw.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000535f.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000535f.bin)
  • https://uploads.strikinglycdn.com/files/7e555100-3cc6-4668-801b-cc79ed15e956/massage_for_pelvic_floor_muscles.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5dcb20bf-0abd-48dc-b646-6ec8e362866a/ford_f150_service_manual_free_downlo.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_off0000535f.bin)

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