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/aws?keyword=courage+to+change+online+edition PDF link annotation

  • https://fiwimojulo.weebly.com/uploads/1/3/4/5/134525916/wogozevumel.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4425533/normal_5fa06b0d74ed6.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/e9493e76-e634-4b08-ab60-4bc2974c502f/79881655612.pdfIn PDF document text
  • https://s3.amazonaws.com/luramamelolem/shattered_star_players_guide.pdfIn PDF document text
  • https://s3.amazonaws.com/befarekogol/tikasetusipa.pdfIn PDF document text
  • https://dilopipo.files.wordpress.com/2020/11/demetivudaxakoleze.pdfIn PDF document text
  • https://xoxedoxiki.files.wordpress.com/2020/11/limits_fits_and_tolerances_questions_and_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/26572113-1887-40dc-b751-574df5f88abd/zinokoreru.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fbec1773-c3e0-4c9b-9604-963e424de656/89527939285.pdfIn PDF document text
  • https://s3.amazonaws.com/tedowafomaru/65562240135.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e2a0f583-ff45-4cd9-9f17-449c9071e242/rifuxurefuvarimosesobij.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8895ef5a-cb3e-4e75-9302-dac6010e0896/58035452526.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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