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://trafftec.ru/123?keyword=darth+revan+costume+pattern PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4369149/normal_5f8d5c797fccb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365660/normal_5f87052f35163.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371814/normal_5f98c384db75b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4411479/normal_5f9513ed97818.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369760/normal_5fa1fb0b8806c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4405208/normal_5fa033d4badcc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382960/normal_5f9b372530be0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368246/normal_5f8819320e84d.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/sojuravewi/west_warwick_high_school_fax_number.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9f702113-109b-48ce-b6da-414637e6269e/gijizorisivizet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/89b6467b-12b9-40e1-8749-c715f223146c/20437605411.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5b0f0eef-d8b2-4032-9abb-04365fe934db/5809307552.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ca46e8a3-7e69-409a-923b-2c029169aed2/zuluwafafulerizaw.pdfIn PDF document text
  • https://s3.amazonaws.com/lixasifasi/sfo_to_puerto_vallarta_flight_time.pdfIn PDF document text
  • https://gibijoda.files.wordpress.com/2020/11/livros_de_sophie_saint_rose_onedrive.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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