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://traffset.ru/123?keyword=cantos+de+misiones PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4371783/normal_5f88df096870f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4420905/normal_5fa01273e88af.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/warapagefasovi/african_american_music_an_introduction_mellonee_v_burnim.pdfIn PDF document text
  • https://mozedibeja.files.wordpress.com/2020/11/89382077412.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f1d38f17-7b84-4628-90d0-f7ba79d0fe88/73056405204.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f02b7d61-5a2f-4f65-8cca-e7da3aec4630/kibekigiburugofiropami.pdfIn PDF document text
  • https://sirilab.files.wordpress.com/2020/11/592302454.pdfIn PDF document text
  • https://gobakige.files.wordpress.com/2020/11/writing_practice_worksheets_for_ielts_academic.pdfIn PDF document text
  • https://s3.amazonaws.com/tobito/65122958444.pdfIn PDF document text
  • https://s3.amazonaws.com/kavalukato/manual_machinist_salary_utah.pdfIn PDF document text
  • https://s3.amazonaws.com/votubukaxogilix/taxuvoxuzevapuwopigego.pdfIn PDF document text
  • https://s3.amazonaws.com/wovitiku/drop_baby_drop_tabs.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bf27ea82-3024-47e8-9492-a507a5b32d25/ejercicios_interactivos_de_pronombres_y_determinantes_1_eso.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
  • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

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