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://ttraff.link/123?keyword=ejercicios+de+ley+de+los+senos+y+cosenos In PDF document text

  • https://cdn-cms.f-static.net/uploads/4371508/normal_5f96f4c795a6f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365549/normal_5f86f4ff8fe0e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379744/normal_5f8d80e895e7c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366004/normal_5f886a8f533eb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367310/normal_5f874ce4db4b8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379960/normal_5f8b54062b6d2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373505/normal_5f8b9d3f9ba7f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374545/normal_5f8d541c8fefa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380530/normal_5f927c5f45128.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402246/normal_5f93535c8e883.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382949/normal_5f8e27cf1e4b7.pdfIn PDF document text
  • http://fontawesome.iohttp://fontawesome.io/license/In extracted file (font_00_sfnt_off000063dc.bin)
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00006e08.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00006e08.bin)
  • https://uploads.strikinglycdn.com/files/41bbb5e5-830f-4b2a-a739-b9b38932e2e0/lafodovurudumokugev.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2af51985-31a6-4d87-a754-4178be5de5f4/57838486408.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/3903/8359/files/pieper_ranch_echo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/1042/3487/files/radudifokonilazisovin.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/5940/7765/files/89588496235.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/2854/7237/files/vobuki.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/vudofovatoxanujoronu.pdfIn PDF document text
  • https://s3.amazonaws.com/xovajukoxin/totumokivigiwifatevabotax.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/bulletin_de_paie_gratuit.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_01_sfnt_off00006e08.bin)

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