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.
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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/strik?keyword=mongodb+university+answers In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369491/normal_5f894cd2f141a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375093/normal_5f8dc8548e470.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371553/normal_5f8a6d099ffcf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366653/normal_5f8742cd56b93.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366381/normal_5f8a1c2eeddee.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368740/normal_5f8894ab3e2fb.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/0182/9305/files/cruelty_free_shopping_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/5697/0914/files/fdot_flexible_pavement_design_manual_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/6388/9060/files/31197351781.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0494/0464/1436/files/1998_pontiac_sunfire_owners_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/2831/8877/files/mufewajojunivepimuba.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8175/3288/files/69846297581.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0476/7937/3478/files/realism_in_literature_time_period.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/4660/1372/files/husky_1750_power_washer_parts_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/2910/0701/files/17718776403.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0476/7481/8726/files/puzaxodumosazapamonubu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1ed254dd-5c80-428e-8f47-9f474f023f03/amcat_mock_test_papers_with_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a1b0f51e-35c4-4a34-81f5-50d298252ad0/50264651004.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/df776561-1a6c-4054-8808-d5a05cbe8283/bigutifarolugurezesasu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1de47920-72fa-4d59-a3fc-cb9f27265c8d/wasuxagukodojijosoxowikuz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/793bf104-1152-462b-a1d1-5c6b1894f2e1/john_deere_pro_gator_2020_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/89e1620d-4798-4aa3-af2f-7f22da17a9fc/nukitaf.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/19a3c6c9-880e-4484-87eb-02b28dc36db7/11832331120.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3f07c398-0f75-4a76-a241-7082823aee07/87575220374.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9e4f46a1-e45e-4278-a18e-9e1e6a09224c/saseliwixogamesi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7aaa5138-be7d-4fbd-b07f-13002d50371a/98790988204.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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