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/pify?keyword=bakery+shop+images In PDF document text

  • http://nojefi.nicolemiao.com/uploads/1/3/0/8/130814297/d69ddb4e.pdfIn PDF document text
  • http://files.bedfordandbeau.com/uploads/1/3/0/7/130739528/73a7827a5f83c.pdfIn PDF document text
  • http://xiwutom.adamolsenphoto.com/uploads/1/3/1/4/131482803/kasibatasub-kubesewopo-tetuj.pdfIn PDF document text
  • http://pudiki.tylerdiscoverslife.com/uploads/1/3/1/4/131438873/9330534.pdfIn PDF document text
  • http://ditejujad.artattoo.co.uk/uploads/1/3/1/1/131164250/bakuxabog.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://static.usrfiles.com/ugd/5dc3ca_4684d4a0ab084e63b2c9dd30f7c2c9e2.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/011e4b_31a0a4dc5cb940739145a25ad00bb076.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/ed64d2_064f94bbcb3d4b2e95e20fc8bbbc9bf6.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_a2876952825b457697e95e261c323dd3.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_ed5e262a66c34816884a5691be4fe99d.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/9372/1255/files/addressing_modes_of_8086.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/3359/8880/files/attorney_general_new_york_complaint_form.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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