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.ru/wix?keyword=video+maker+professional+android In PDF document text

  • http://files.kickstart-hr.com/uploads/1/3/1/3/131383771/c9fe20.pdfIn PDF document text
  • http://files.danielmachine.store/uploads/1/3/1/1/131164063/5752311.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/1/0435/4048/0155/files/differential_calculus_formulas_list.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/3152/6557/files/maneuvering_the_middle_llc_2013_answer_key.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/7862/2111/files/gaxixurabaluditupujope.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b65acf_f309ce7d82244b76bc52779d59d7cd45.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/ee4a13_b0a42b45e4174843937ccb6dcf131166.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/f65518_9baa6725c76842bbac9d36c2c0d637db.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/5792/9622/files/42978033286.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/0306/7038/files/series_66_study_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/2288/3735/files/xagupazapemodo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/9127/1586/files/wubugipodematolujirizol.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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