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/pify?keyword=atavistic+form+definition In PDF document text

  • http://riwatulu.gbnfootball.com/uploads/1/3/1/6/131637254/sidokitutubite_xaginoxax_vevetokazowiba.pdfIn PDF document text
  • http://files.madamedrydensgrade5class.com/uploads/1/3/2/3/132302733/f51f78f3e873.pdfIn PDF document text
  • http://files.jameskallembach.com/uploads/1/3/0/9/130969548/bigat.pdfIn PDF document text
  • http://pigodo.azkillerbeessoftball.com/uploads/1/3/1/4/131452842/sometelodiku_fewote.pdfIn PDF document text
  • http://files.univerdant.com/uploads/1/3/0/7/130775980/05f1a8.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/338562_e4b449f4cd5e4da2b4349014a9fe7eb1.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/9edd50_d643aeb827c4453aae78b8b7274729d1.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/5b604d_b060c17710434a7cb07af27a955a9aaf.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_292b33e770de484aaf91ce4a74933f5e.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_190d8abef2c64a88b1d03a9bea354686.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/345929_8e783b6e85c24950aa346686aa48c11b.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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