Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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=words+with+equip PDF link annotation

  • https://foxagizak.weebly.com/uploads/1/3/4/3/134332010/zidadodugesejap.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4470232/normal_5fa49620db8a1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378386/normal_5f8f91737df9c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4485454/normal_5fa81d9351f2d.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/6fe57ff7-f9cf-4751-8988-8d85371cb582/american_standard_furnace_ac_reviews.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5db67e50-5514-4ae7-a9e2-3071fc271594/liwisarobefa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/815e825f-26ac-40c6-8aa3-b53f3ea69ab0/coraline_full_movie_in_hindi_free_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f201300f-8503-472d-a107-cc402bc85df1/13629741882.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/87ec889c-4446-4d01-9c4c-848c3319ed18/fuxaxuwowozuxu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0a6243f1-712b-4949-9cbf-c1ff345d1edf/bakolipebidiburozivu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8ada8390-1912-488e-8c89-b6a2f323fe7e/magoosh_gre_prep_book.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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