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/wix?keyword=calendario+2020+por+mes+para+imprimir+pdf In PDF document text

  • http://files.confed-europia.eu/uploads/1/3/0/7/130776183/tapepotobugepizofa.pdfIn PDF document text
  • http://files.socialinnovationfredericton.com/uploads/1/3/0/8/130813777/pimex.pdfIn PDF document text
  • http://files.busheyangleguidedfishing.com/uploads/1/3/2/8/132815015/munined.pdfIn PDF document text
  • http://xodovota.theforgegaming.store/uploads/1/3/0/7/130776791/5529bc12c241.pdfIn PDF document text
  • http://files.journey-to-alaska-adventures.com/uploads/1/3/0/9/130969772/neladozubivinevedaki.pdfIn PDF document text
  • http://files.rcnanorthbay.com/uploads/1/3/1/3/131381658/3461912.pdfIn PDF document text
  • http://files.diamondavestudios.com/uploads/1/3/1/8/131856380/2039366.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/08e331_ed0b8ab2d1554a5494d3ff8345bd850d.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_acfffb4ccc3644329500c1ea517f5368.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/99a8f2_63136558ddf640ab80369785fc46123a.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/3fd21f_b31fe177d8c3436b8da1853ac127c1c9.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/dcf311_375a9288a8ed43eebe438f3138b90324.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/4bb103_146935664b2b48b3b70e2085605619ba.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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