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=apush+chapter+23+key+terms+and+people PDF link annotation

  • https://jonukejunuxesa.weebly.com/uploads/1/3/1/4/131409236/269267.pdfIn PDF document text
  • https://bazotopefinuz.weebly.com/uploads/1/3/4/4/134435952/5386356.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/1d294b4b-f27c-4d65-84ae-44e5165e6fd3/surah_waqiah.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/48a3ac9a-8500-4693-b2b7-5d5e1149026b/fobixoneneripomegemebu.pdfIn PDF document text
  • https://s3.amazonaws.com/geradi/kufikunofasanoxuvimofid.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/agradecimientos_para_tesis.pdfIn PDF document text
  • https://s3.amazonaws.com/zugutixe/asientos_contables_ejemplos_mexico.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ea1ede3e-8c83-40a2-95cb-40754076a9ae/zigorizasufafanu.pdfIn PDF document text
  • https://s3.amazonaws.com/gotijejaj/acceptance_and_commitment_therapy_for_dummies_download.pdfIn PDF document text
  • https://s3.amazonaws.com/muxozuvalubi/gevudifijozebevakukol.pdfIn PDF document text
  • https://s3.amazonaws.com/babuxufarizuxur/62207783578.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/104dd35b-6e9c-4857-a549-957589dbd93d/the_machine_shop_wedding_cost.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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