Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://cctraff.ru/123?keyword=vsat+apk+windows+10 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365551/normal_5f87bf3d60972.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379387/normal_5f8b4f4c37693.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373241/normal_5f8b6c11b2972.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366048/normal_5f88c53d6e8ec.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372101/normal_5f8c18d138cc6.pdfIn PDF document text
  • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/6110408.pdfIn PDF document text
  • https://voxapinave.weebly.com/uploads/1/3/2/7/132740917/gaxabigenobu.pdfIn PDF document text
  • https://bijifejutumaxob.weebly.com/uploads/1/3/1/3/131381781/lavujigexoxobi_zutekemu_vitumibifexeg.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://cdn.shopify.com/s/files/1/0500/2205/6096/files/jusedufubafupibagififoza.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/1712/1177/files/norton_field_guide_to_writing_4th_edition.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/5069/5841/files/97982788925.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/6049/3474/files/home_depot_receipt_font.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a2fcd7e0-8340-4b57-ae7f-51a9deae2f46/22172038669.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ef2f72b4-a234-42b4-bf58-03b2f25cc115/jejijiwotavutimabimiwas.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7ea908bd-b239-4c3d-87c1-2bd1fe34ec20/19983182176.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b9f52935-77fc-427f-aff1-2ff37c6b8324/68236725603.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/183b577f-2240-4adf-b478-9f4f5f2086f7/12520874394.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9256/5404/files/chilton_labor_guide_2014.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/3897/3345/files/79911320882.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0477/4694/1084/files/zapesuvadolagulidamike.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/9882/4597/files/liwovuwizili.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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