Malicious PDF — malware analysis report

Heuristics 4

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• 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://ttraff.cc/123?keyword=efmb+written+test+study+guide In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365583/normal_5f920a367b7e9.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/f2698523-385d-4db0-bf57-d03b3652d41c/7933035596.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1c5d94a9-572f-4aa0-9f9d-9b31007d80a8/pdf_book_of_shadows.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b7f220a2-3ff9-4307-98f4-c3452a654330/magic_led_light_v2.pdfIn PDF document text
  • https://s3.amazonaws.com/ginutu/3172834049.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3aafe21e-5157-46d7-a399-36cd5e0aa840/joxexevifugikilasa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7876f3ab-dade-4bf0-a1a6-92959bfc2fd2/zekipifujod.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7a6d5e81-5232-425e-bd95-aebe7f930846/14333480704.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/epidemiologia_analitica_experimental.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fb1496c0-dfe2-4db8-923a-7dc0e810683f/73074120887.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c5407704-b6ab-4a6f-8cd8-2c75bcb428fb/ultimate_facebook_hacker_3.5.1_free.pdfIn PDF document text
  • https://s3.amazonaws.com/nefagolom/39272369584.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5abf56bb-df5b-4c45-802d-54b62f02b4df/que_son_las_fabulas_y_sus_caracteristicas.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9de051ab-51d7-4b6a-9171-7a849909aeea/89329802846.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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