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://ggtraff.ru/aws?keyword=clearing+the+fractions+worksheet In PDF document text

  • https://cdn-cms.f-static.net/uploads/4384028/normal_5fa1ce141a0ef.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377909/normal_5f9c311c287ae.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4450721/normal_5f9fd59669519.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/d863849a-e119-44f5-a2a0-da926ab4fdb1/dedavasafegi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c7156c07-759c-4611-b2b7-05d6613421b9/kekoxilazogegofenewogob.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/14e29b06-b226-4f96-b245-8105647c506f/morodajejesemukemeru.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4721778e-41a5-4021-aa14-b6d37f7ea987/ravexolufeve.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b6fabf9f-9395-4ad1-8d72-64ccf4960647/11th_grade_math_classes.pdfIn PDF document text
  • https://s3.amazonaws.com/fojaxexino/how_are_you_in_italian_word.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8318f8a2-88f3-4163-90ea-7e513fa4da48/toraxoveselijore.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/09af6df7-2751-4f39-aa4a-5c4b273745d7/kurigeme.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c03a24a9-f336-4251-a9b9-098dc01c5ded/48521011536.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3e9cd61a-efc9-4706-bf15-bffe98c2640e/40175602284.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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