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=ffxiv+chocobo+food+guide PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4379219/normal_5f93fff3d467e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4415783/normal_5fa5f70064fbd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377112/normal_5f93e38089849.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402960/normal_5f94b324302d6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4448713/normal_5fa40472bbe3c.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/8f8c767b-eb16-4005-b9bc-c825228f8aec/janelejuligalunomakagujet.pdfIn PDF document text
  • https://s3.amazonaws.com/jolituzoji/65951563367.pdfIn PDF document text
  • https://guxufugamu.files.wordpress.com/2020/11/94033030057.pdfIn PDF document text
  • https://wikilebe.files.wordpress.com/2020/11/operaciones_matematicas_sexto_primar.pdfIn PDF document text
  • https://s3.amazonaws.com/tekujel/thorium_healer_guide.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/64b63b05-f16a-4fa4-a8de-52afcca1999c/alton_brown_homemade_marshmallow.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9e490dc8-9267-44b4-acb4-fb8ec6ab6dd4/porno_graffitti_the_day.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/078f559f-3d7b-49b0-adff-2268a9ebdbe5/86232111924.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ee399c7e-0a33-4b3e-9508-b16587daa7ec/zuvow.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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