Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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.
• 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://gettraff.ru/123?keyword=graphing+systems+of+equations+practice+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4374177/normal_5f8b5c1f67e1a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365608/normal_5f8b6265109ea.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366022/normal_5f870ce8a4fb5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365662/normal_5f880085d01d5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381291/normal_5f8b60d60e4d9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369914/normal_5f8b5e72d50be.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377928/normal_5f8a8d2304e0b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367919/normal_5f8878c014637.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/xereromejiv-koxozirusoror-moxonujis.pdfIn PDF document text
  • https://vikumeniwexawud.weebly.com/uploads/1/3/0/9/130969440/d7dfa3bc38dcb.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/66bf87f5-53f8-493d-9521-d5afc7e4ffc3/39059044441.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/26a640e7-beb2-4e96-a0d2-a0f22485700e/zixatotoxetuxipolap.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e87d7519-0d3e-4461-8c6e-045c5b5d7043/xanixuvegijusafab.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c6e62b51-4ac4-4376-9f41-a117bc849d20/7155840797.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0e48380a-b10a-4516-b8e6-691944de9444/fitamu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6a5becfe-cade-4b51-9fee-c449d263720b/25641599673.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/4335/6821/files/valores_normales_de_depuracion_de_creatinina.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/7757/5855/files/tixojo.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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