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/pify?keyword=penn+hills+low+cost+spay+neuter+clinic In PDF document text

  • http://files.cyclingeye.com/uploads/1/3/1/1/131164552/0369d2452c10c.pdfIn PDF document text
  • http://files.tallsmallproductions.org/uploads/1/3/1/3/131383207/969711.pdfIn PDF document text
  • http://votatos.yellowstoneartboutique.co.uk/uploads/1/3/1/4/131482995/zepadoba.pdfIn PDF document text
  • http://dimoje.biblebasics.net/uploads/1/3/2/6/132681763/646d76.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/1690ac43-5c50-49cb-96d4-afa6cbf9d93f/54034858362.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9cd65a53-0253-4e6e-8c10-82886fbb828e/sisariwixufirubakudu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4893aac4-adb4-4261-87fc-b193226244e2/41316100609.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/de3b2e5b-5a86-4f02-b106-0dda3a06c9a3/12349815965.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6372c80e-a4f7-4a16-ab02-8f65fdcea218/99569441511.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dc6ad435-489e-4ce3-aed6-fd7b97363ac1/96898401508.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/df2a5f60-c46a-4dfd-a0e1-655a50124c6e/23528883204.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c24e2341-bcbc-4ca5-91c7-18f48bd33d0a/58011784890.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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