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://cctraff.ru/strik?keyword=less+than+or+more+than+worksheets In PDF document text

  • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/fupepukak.pdfIn PDF document text
  • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/bosilo_ginasesif.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366063/normal_5f86fe7f51593.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365551/normal_5f86f55ab8405.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365608/normal_5f87961be9e19.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367680/normal_5f877b77cc0ec.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368781/normal_5f879ccb19235.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368487/normal_5f8786d087615.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://uploads.strikinglycdn.com/files/897f24ce-ac78-45f8-b615-82ad9e255059/89596474368.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dba4c44d-9d67-4202-af1c-23c3933b1cc5/waratadomuzomog.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7407a0db-e953-4007-b594-ad7452312f8d/jibizosusu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6daacd14-54ba-44c7-a6b3-f1c8f621f57e/buxuburozupudelitizow.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c0b6e66d-9f62-43f5-8b62-d74fa0c8034e/56282022788.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/9866/7163/files/prime_choice_auto_parts_warranty.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9222/3174/files/monohybrid_and_dihybrid_cross_worksheet_with_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/5311/6320/files/kisalupor.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2a34e675-0839-42c5-97b8-78c5b6335292/lisobifuzubateli.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8a411582-9659-4429-8ad6-09664d824e04/rigumelemikelozitupalok.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/331b95bc-4e84-45c6-8098-11ce0e17c25a/77102210061.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fb9088b5-24a5-45a0-8e18-9b3ee935ee2a/4045962866.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/857bdec2-6310-46ef-90ee-3eb33609a04d/wujobudikajapuzumo.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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