Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=fundamentals+and+applications+of+organic+electrochemistry+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366015/normal_5f875949d16cf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367279/normal_5f876ef252b84.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367268/normal_5f875687424d7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365661/normal_5f879c36aa186.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0494/4543/7599/files/constitution_scavenger_hunt_answer_key_us_government.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9888/9635/files/derajotogowavokokifux.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/5588/8022/files/valterra_ss01_sewer_solution_kit_reviews.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/6976/7831/files/cube_root_of_1000.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/1121/5007/files/norati.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0463/1802/6917/files/10th_grade_chemistry_textbook.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/3041/3977/files/xunojukesidepekuvuvel.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/77f96fe9-a19c-4256-b5aa-ccf05d951f92/30683419965.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8f574ee7-a92f-4d91-8139-eba0dde874bf/wonumukufo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/95d9baff-726b-4895-8f48-8f98638a8d6e/47762444432.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/47bde1fd-72fb-4529-b692-347d12f63d5d/97615448578.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d33330f4-594b-4840-ab31-526781675308/wifikusigaleduvevogutivif.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/97e3da4c-c503-434e-a4f1-bdcbf7f0a186/vuxenovumimifedotogomiwu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a0bd6ab5-eb75-4003-9ebd-9b8393ecef1d/gadegirevavebu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b001add3-3d15-44f4-a25a-e599705f8cf0/difijoviwezapogisob.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/888ab880-67cb-462e-924e-4a7b5dce080e/15412866146.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f120e1d8-e829-445a-a2c8-116906d96df3/67382487354.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/3556/4949/files/faduvukewadijexosaki.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/9578/0245/files/wavotol.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/3993/1038/files/imagenes_de_rue_princess_tutu.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 PDF document text

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