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.com/pify?keyword=bhagwat+gita+in+marathi+pdf In PDF document text

  • http://files.neonfactory.ca/uploads/1/3/2/3/132302716/towinaridamez.pdfIn PDF document text
  • http://zetaku.woodcreekyearbook.com/uploads/1/3/1/4/131453870/kidazulurot_lazef.pdfIn PDF document text
  • http://lemiva.robertfreedmanagency.com/uploads/1/3/1/3/131379510/d8ef8a479ffeff4.pdfIn PDF document text
  • http://fedorahosted.org/lohitIn 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/857e61_1c382a378af044908274d404c5bfabdd.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/d51d36_777a953547164f85ac39963ecf12d121.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_39a7e07516dd45019b2af0ae4b07613c.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/585b1d_763f243bb7c0465d990549ccae232aea.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/6e3131_65749643f9d54e9a90e9d71a8c62a15e.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/353d00_cb03750e3ef543de8fa35160a5325ef8.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/c345b0_7e5f42f3d74a4cf3872262b9c7ef8353.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b52961_b60ce4ec85414869815dfa4fc212b7f7.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/07625c_bf59b97a5f374e63abef9258e4f857d9.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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