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.me/123?keyword=the+complete+dlab+study+guide+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4376101/normal_5f90bbf1ed038.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387713/normal_5f9697e242421.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368505/normal_5f88cbaeb1854.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366047/normal_5f8700d9d6380.pdfIn PDF document text
  • https://luxederobidurip.weebly.com/uploads/1/3/4/6/134603039/wepudivabi_tebel_juxeposaxipez.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402032/normal_5f9869929a8a9.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/0653/7111/files/gunemetegepuwavuzevej.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/0521/3854/files/43279782383.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/6109/1221/files/94454900024.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/97902029-0be7-4f10-ade0-1119425cbf3d/oakley_gascan_s_lenses.pdfIn PDF document text
  • https://s3.amazonaws.com/lanubili/48996076178.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/7646/6843/files/sewing_tools_and_equipment_worksheet.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0465/0323/1646/files/organic_chemistry_volume_2.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 PDF document text

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