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://trafffi.ru/strik?keyword=fresh+thyme+weekly+ad+this+week PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4366376/normal_5f965d1ee4af1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4394073/normal_5f8eb0a4b22f8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366003/normal_5f8eea6372d11.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4405652/normal_5f93a5a73e3ee.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/1394/5513/files/light_void_icon_pack_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/8979/5998/files/environmental_management_oxford_book.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d76832e1-df7b-41ca-9ad1-3848804409be/werejunazola.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c84023ea-628d-41c5-8f93-7b65bdfa6376/roblox_vibing_music_codes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f8814377-db35-46c7-9756-5dc3679785dc/nowepesatamapodinovufu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d388cc76-eb62-488b-b8de-793ec76c7f80/55349534908.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bdc03271-eeb6-4bfe-89f1-fef7444b5fef/93822959613.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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