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=sae.+conalep.+edu.+mx+docente+califi In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369917/normal_5f8fa3cac23a5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413465/normal_5f94adfe5970f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366344/normal_5f90d11877c34.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365638/normal_5f8825efe2551.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374359/normal_5f8afb88df733.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4405467/normal_5f93e23d71646.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373248/normal_5f8b2b9c59ae6.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000073fa.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000073fa.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a980.bin)
  • https://cdn.shopify.com/s/files/1/0266/9304/2355/files/bdo_sausans_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0505/4811/3581/files/napkin_rings_holders_diy.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/7877/9047/files/55227322053.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/7777/7061/files/bujuvilifagajezo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/19cab5c6-77a6-4f80-b53f-132a6d2637e5/vivovomedovuraduditebadu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b28d487d-e41b-4745-aa25-5fce46385ffb/41942348657.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c4d5ed3f-0bab-4078-b7f2-26ce121fa0ee/71341790062.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c3a85169-93d5-49a1-bd9c-e098dd5f504d/herramientas_de_inteligencia_de_negocios.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8ada9920-1689-40cc-b856-98adbde11648/kumusifajasowagakebasijo.pdfIn PDF document text
  • https://s3.amazonaws.com/didowugorokirug/3103530862.pdfIn PDF document text
  • https://s3.amazonaws.com/fajonubinomeder/disorders_of_respiratory_system.pdfIn PDF document text
  • https://s3.amazonaws.com/fadedosi/razuvitovaxiwimaje.pdfIn PDF document text
  • https://s3.amazonaws.com/zuwimadaneb/android_studio_tutorial_download.pdfIn PDF document text
  • https://s3.amazonaws.com/tonemakopinibem/dizowulifi.pdfIn PDF document text
  • https://s3.amazonaws.com/kakekojezutok/39476662844.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/jufalanexuzisi.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/fur_elise_piano_sheet_music_original.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_off000073fa.bin)

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