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://ggtraff.ru/123?keyword=beginner+french+vocabulary+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365594/normal_5f8815ece4a36.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366304/normal_5f873016b7231.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366668/normal_5f872ae8f20b4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365598/normal_5f86f49455479.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369318/normal_5f880255887c2.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/da4cd289-1552-447a-86b2-2fa46c11db66/92560960937.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/45dde53f-0ed8-49f4-9aa9-e8eb753393d3/nakeruxa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f77d94cd-9372-490a-a0d1-5f7738564f1f/tivatutabogix.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/20431a2f-fd7a-4dff-9df8-f50c0a89c0d1/nonisenajekemox.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/3160/0538/files/kovupej.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/2449/0397/files/light_keeper_pro_canada.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/2224/4264/files/japanese_wind_chimes_glass.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/5386/6919/files/lds_housing_boise.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/9065/6924/files/pads_tactical_protective_assault_cost.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/0185/0273/files/descargar_diccionario_larousse_espaol_gratis.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0487/7451/2806/files/proportioning_valve_installation_instructions.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/3116/6615/files/42353826765.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/3485/5582/files/george_lopez_tv_show.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/5230/8901/files/gitojulufudojuw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/841c31d8-76fc-405d-8f03-f20ed133a983/wajujijibo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/48889e0d-dfd1-47e5-95ca-1583d82845b2/62214438541.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2b9258fb-6926-4479-8044-147de8b456d0/jafomomusukofovibaresibo.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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