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://trafffe.ru/aws?keyword=flaming+sphere+pathfinder+2e PDF link annotation

  • https://zafigitelerom.weebly.com/uploads/1/3/4/3/134338481/62977f57803f8d.pdfIn PDF document text
  • https://molegogadamo.weebly.com/uploads/1/3/4/3/134341439/9bbbb.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/0d7fa22a-ed43-4ba3-8405-f9967b64fedf/electric_pressure_cooker_recipe_book.pdfIn PDF document text
  • https://s3.amazonaws.com/sivanira/titunazokemigag.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/82503672-9f70-426d-b0e4-6ace75449db9/wukimawit.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c172fe5f-509a-4c76-8207-c4cb428bc812/bigfoot_disney_movie_2018.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9bc6a04c-a814-4310-9fe2-193ed2a30951/13126233735.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3b435295-7c11-4946-9619-879b52bf8c20/84804330226.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/2751/1496/files/converter_em_word_nitro_cloud.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c84e1be8-3cb8-4eca-8867-059770f8b396/guitar_chord_chart_template_excel.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eb561c66-e43d-4717-8cbb-6ee7fef60358/la_odisea_de_los_giles_pelicula.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/415ea374-d311-45f9-b852-04b58d41efe6/zeraserademavira.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/2546/2982/files/57525592085.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c63f147e-6796-4d95-b16b-69e82813b5bc/harry_potter_libros.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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