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/wb?keyword=cours%20nombres%20complexes%20terminale%20s%20pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4385631/normal_5f8f5e931f6d7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384644/normal_5f8ca11ed1961.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4417543/normal_5f983e81379a8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367920/normal_5f88aa80ac5a5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369656/normal_5f949f70c3db2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371013/normal_5f9503d99b5a0.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006904.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006904.bin)
  • https://uploads.strikinglycdn.com/files/0e3cb8c5-2532-44dc-8e5a-61b829b308c6/taxamusakatiwimolumumud.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0c5ffc45-42ca-4401-856e-b0195f90ab62/71093784951.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8b7e382d-5a90-4fd1-a11a-1cac30b8f568/12711084203.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0ca55851-a460-40ee-828f-355d494ba524/nadapofowi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/6926/3003/files/ps4_emulator_bios_file_download_for_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/7078/1103/files/autocad_lisp_programming_tutorial.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8119/6227/files/perspective_education_in_telugu_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/29e96f95-2333-408e-9db6-3c6cfb40f7e0/difagufuzono.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c0087a73-2792-440e-82d2-d9c8db175d07/pelicula_completa_vicente_fernandez_arracadas.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/16542de3-fb70-42a2-8671-7d6741d445dc/depame.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9a22db97-5d4a-49af-b665-af258be453cc/bogeragovetexejatimok.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_off00006904.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000a29f.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000a29f.bin)

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