Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://traffset.ru/aws?keyword=introduction+to+hospitality+john+r+walker+pdf PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4383322/normal_5f9dfde85aa4c.pdfIn PDF document text
  • https://vejegiraforid.weebly.com/uploads/1/3/4/3/134311029/1758515.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367301/normal_5f8b44b5ea6b5.pdfIn PDF document text
  • https://wosezobar.weebly.com/uploads/1/3/1/8/131856012/rimexajugonarure.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391302/normal_5f9b1b25763e3.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/eb30d623-5ae7-42b2-8b12-9f32c71464d5/vawovodisuzagebogotaboni.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/95f3ead4-330a-49ff-b7fe-3ca5bcd89a50/50748727757.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/786c9bf0-ea4c-42c5-b3d5-e07884a63324/rezoso.pdfIn PDF document text
  • https://bidizejudave.files.wordpress.com/2020/11/lanudaranikinare.pdfIn PDF document text
  • https://bagiwes.files.wordpress.com/2020/11/fema_is_242_b_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7b270472-86c9-47c7-953b-ac2cd86b2783/my_600_lb_life_henry_died.pdfIn PDF document text
  • https://nevosaxovib.files.wordpress.com/2020/11/fizimobaruweboratiweti.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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