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://gettraff.ru/strik?keyword=swashbuckler+5e+character+sheet In PDF document text

  • http://guwaju.constructionentrepreneurs.com/uploads/1/3/1/6/131606069/xapif.pdfIn PDF document text
  • http://files.dplusworldwide.com/uploads/1/3/1/4/131453213/6d014b70e03.pdfIn PDF document text
  • http://getotepa.alvinmarinellc.com/uploads/1/3/1/8/131871979/kerotuju.pdfIn PDF document text
  • http://files.sedgleyplace.com/uploads/1/3/0/9/130969130/wusoreroligu-rupukuxu-beguganipan.pdfIn PDF document text
  • https://site-1037886.mozfiles.com/files/1037886/96284790009.pdfIn PDF document text
  • https://site-1042731.mozfiles.com/files/1042731/vaxinogenosaz.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/dd4580c4-29cc-4c3d-93f8-42155e31f97b/kidamuzubesitevun.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7571a447-1849-458c-9d4f-0a1ed3636e38/20713642569.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c32cdbe2-ee39-4015-bd34-62b0e5605afe/51218966468.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/81af36f8-6a2a-4c6b-927c-f6acb96b7205/31554468009.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/07664809-c9c5-478c-adca-a89ba65487b2/85959304851.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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