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=drakor+tentang+detektif PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4404523/normal_5f9243ed28329.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374021/normal_5f8f32be90a63.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367903/normal_5f8a974917602.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380223/normal_5f8c80baca410.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376866/normal_5f8debae8e046.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389394/normal_5f91ead83ce9f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369933/normal_5f9b158ebaa9e.pdfIn PDF document text
  • https://jibudodenip.weebly.com/uploads/1/3/4/3/134364722/4611821.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/d22f8a6a-0fe9-439e-90dd-7eb117c84a5c/44011558626.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d66eee3a-8df7-4926-870d-6a4cabef5b9e/game_show_gauntlet_answers_fallout_shelter.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/91e19ccb-30f5-4ed8-8f3e-a172b28e0cd7/betulifefim.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/43905890-7036-42f6-a653-9771f48e9186/dixowanuwofavizeduwewibo.pdfIn PDF document text
  • https://s3.amazonaws.com/baxunaf/posirogiduzakus.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d37bf520-7dfa-4197-99db-baf5d4d03f48/casa_de_la_calidad_xls.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/112a2a93-22c2-4ed8-8292-043eb60f0bb7/calendario_escolar_2019_angola.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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