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=pre+parade+toradora+lyrics In PDF document text

  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://static.usrfiles.com/ugd/6d59ab_61e62caad9f9468fa2c6b0cc0359deff.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/ade4e6_fdff9db4f89a479a98a2e4020480c0b7.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_fab6ea02989040ffa9f81bd0e7f73aa6.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/f65175_deabea73801d427680fad8ca4d0a50d7.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/451a43_5b7f378526ee48a7853dc43d8a51d199.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/6cf392_7551cdc644264e94ab690399fc202e56.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/e3834b_4d4ab5d0e80a4e76838568a493ece4ea.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/ce0e6d_606565310b5f4bd0b67552afd440c95a.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_a7c462d476e04256a53a9cc320975875.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/516793_8665e7e604b942be94ec35cab0a2682f.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_89d332af4a29486188fe47c5a757534d.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_059c75bd1f784c759520fbf3d2df20cb.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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