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=sample+of+formal+and+informal+letter+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369160/normal_5f90740511930.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370077/normal_5f913994ee891.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387825/normal_5f8e35b1db9da.pdfIn PDF document text
  • https://gofobodobade.weebly.com/uploads/1/3/4/4/134444694/efc61c4.pdfIn PDF document text
  • https://xufizigox.weebly.com/uploads/1/3/4/4/134479456/kanuxotinibevew.pdfIn PDF document text
  • https://disaxugotusineg.weebly.com/uploads/1/3/1/8/131871710/7667619.pdfIn PDF document text
  • https://fotejisatowonu.weebly.com/uploads/1/3/2/3/132302873/307ccad49.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365600/normal_5f8717cb40f94.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4392220/normal_5f9577f9de35c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368979/normal_5f8c7aa659c7e.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000767b.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000767b.bin)
  • https://cdn.shopify.com/s/files/1/0435/2924/0727/files/native_american_cartoon_series.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/0623/0168/files/dejite.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/0139/5392/files/28367362075.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/4548/5725/files/recette_thermomix_apritif_dinatoire.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/09d50948-8ada-470f-8534-d5f47d53d3ba/49898261126.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5abf56bb-df5b-4c45-802d-54b62f02b4df/que_son_las_fabulas_y_sus_caracteristicas.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0e1edcf7-5a41-4e62-bfb2-d8ac6facf432/diagenesis_catagenesis_metagenesis.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1adb37c0-53d4-448b-a311-b018cd77b2b4/3552253830.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/97d9541f-ad16-4f2a-8655-6facc652dce3/fumikijen.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/2077/0237/files/retail_management_in_tamil.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/6773/6225/files/fb_lite_app_apk_latest_version.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_off0000767b.bin)

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