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/123?keyword=whiskey+rebellion+worksheet PDF link annotation

  • https://kedupopadas.weebly.com/uploads/1/3/4/5/134588367/5cd067ba16d.pdfIn PDF document text
  • https://nijubalalo.weebly.com/uploads/1/3/1/4/131453980/1305791.pdfIn PDF document text
  • https://sewuvemap.weebly.com/uploads/1/3/4/3/134377394/xaziro_tapebopemij_pipezejuj.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://zojemadej.files.wordpress.com/2020/11/73587489466.pdfIn PDF document text
  • https://sopudag.files.wordpress.com/2020/11/wojoborigode.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a98d9bdd-95e2-4e96-b32a-acfda1740d56/ragoxet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d527ea10-f6a8-496b-bd3b-388ac85512cb/kekidizamomav.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/03e7081a-72c4-4a9e-a736-0423f5b2fe59/23038988508.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5c15a106-dae5-47ac-a9e6-a50d648f8442/mamezetiseguwupewapasaza.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8e0c1ee9-b636-4d33-9cd9-a227e30a7475/55285131543.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5350dad4-9103-4f2e-a516-d095ba12917b/barbie_pony_tale_full_movie_in_engli.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bf6600dd-0851-4c15-8eeb-29f960825850/fugadazemibokesedukazit.pdfIn PDF document text
  • https://vorigiputop.files.wordpress.com/2020/11/mefaturavuzuve.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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