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/123?keyword=merge+jpg+files+into+pdf+online In PDF document text

  • https://cdn-cms.f-static.net/uploads/4380531/normal_5f8eb5de9f002.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366984/normal_5f8f14f375fc0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374532/normal_5f942b992672c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387046/normal_5f8f4dfb27743.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379234/normal_5f8dfc5da457b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375357/normal_5f897a36322b4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366633/normal_5f8778671c0d1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4409826/normal_5f9439a4c9c03.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384483/normal_5f8f300e75e66.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000708b.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000708b.bin)
  • https://uploads.strikinglycdn.com/files/082e869f-eccc-40bd-8d89-daf541d932d9/10708747115.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/30325130-7c6f-4358-a075-ff922c03acac/tifuxepavimofexuluzofib.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3b383b54-2268-4cbf-abf1-3a99137e8d62/tecnicas_de_instrumentacion_en_endodoncia.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/789ef207-0f3c-408d-9ac9-0c21e451fa2d/33268191938.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6bf13a89-8ed5-451a-8cba-d89d33f0deb1/32156978930.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/2697/9739/files/have_you_ever_seen_the_rain_lyrics_meaning.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/3298/3190/files/coleman_powermate_6875_parts.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/6682/5115/files/stellar_evolution_webquest_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/7768/7706/files/metallurgical_process_design.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0439/0571/2296/files/61082556560.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8175/3288/files/candy_crush_jelly_saga_apk_old_version.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/1712/3486/files/manual_prctico_de_medicina_ortomolecular.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/3897/3345/files/iso_14001_training.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/1620/2651/files/wedding_reception_dj_checklist.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_off0000708b.bin)

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