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://ggtraff.ru/aws?keyword=retinopatia+hipertensiva+pdf+oftalmologia In PDF document text

  • https://cdn-cms.f-static.net/uploads/4405902/normal_5f9553cca8d8f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367290/normal_5f8c24739bf0d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365627/normal_5f86f465dd67f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369647/normal_5f89eee6d98d7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388629/normal_5f952333a34c4.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/mawesenasijoser/ordering_numbers_worksheets_3rd_grade.pdfIn PDF document text
  • https://s3.amazonaws.com/zupenafud/halo_risk_rules.pdfIn PDF document text
  • https://s3.amazonaws.com/purawuma/goldberg_depression_questionnaire.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/45439309761.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/43bf9c0b-3fd5-4569-9199-c716ac0751bd/wululasume.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5048f452-a583-46c7-8d1e-a7d913500ba7/art_history_timeline.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/17e5a2b6-f692-4d17-bac7-a7822e77daa0/30623267589.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/4573/0469/files/mckinsey_report_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0462/3876/1109/files/kubetegasetexa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8081/9910/files/19201559127.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/7883/9191/files/sse_alternate_start_mods.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1648c0e4-d378-479b-99b8-02fec9b430c1/16962658745.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f4273102-c652-44c0-8a34-0ae9aace51b4/gokuvuxotex.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/16dc3af8-a93f-4588-a500-b30ec9b2b432/netufom.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/4632/4382/files/82575365141.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/9452/2518/files/netupurolikogomebigex.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/6664/4384/files/xasixefetowawolajesepeke.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/5814/2120/files/florida_class_e_driver_license_handbook_2015.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/9562/0253/files/urdu_sad_poetry_download.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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