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/aws?keyword=astronomy+magazine+pdf+free In PDF document text

  • https://cdn-cms.f-static.net/uploads/4376854/normal_5f94880df0c00.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366639/normal_5f8d882d49d8d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386366/normal_5f954adf53844.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383452/normal_5f8c8ae30de0e.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007211.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007211.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a670.bin)
  • https://s3.amazonaws.com/zetare/models_of_health_psychology.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/3114/1783/files/39633009930.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/8808/8728/files/47988641788.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/2889/6673/files/suspenso_da_exigibilidade_do_dbito_fiscal.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/5978/1023/files/momak.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1d7d0cc7-a24d-439d-9250-dfc288a4776d/46603301776.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1f6d1c66-2c39-47cb-bb4d-eb391df8b22b/vivukirativudanaten.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/df638a90-0ca4-4c6f-b04e-9456ea92e4b4/24675403231.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/8797/6864/files/96443446655.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/1977/1297/files/28571690154.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/8307/0629/files/fx_file_explorer_pro_apk_revdl.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9087/9667/files/lausd_parent_portal_instructions.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 extracted file (font_00_sfnt_off00007211.bin)

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