Malicious PDF — malware analysis report

Heuristics 4

• 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.
• 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://traffine.ru/aws?keyword=clep+sociology+study+guide+free In PDF document text

  • https://cdn-cms.f-static.net/uploads/4413843/normal_5fa094600c032.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385028/normal_5f99fa0b18877.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402519/normal_5f996276ee19d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369173/normal_5f8a1ad81f8cc.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/62fd1e8c-46d0-46f7-8e21-8111852b00f6/72389254303.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/troy_bilt_horse_riding_mower_owners_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7efbb9b2-a29e-470b-ad71-129334f28523/rbi_exchange_rates_2019.pdfIn PDF document text
  • https://s3.amazonaws.com/kexamoxusinixu/anabolic_steroids_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f28ba02f-2ecb-4614-91f2-930eb6937f12/whirlpool_washer_says_control_locked.pdfIn PDF document text
  • https://s3.amazonaws.com/zaxawetawupo/1085886094.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/36a9941c-449b-4b8b-bb86-81b2a06b6f74/88592463629.pdfIn PDF document text
  • https://s3.amazonaws.com/bezutu/fegunav.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4fc929b2-2a31-4ad3-97a5-3e7d890f9c13/nojiretomim.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/385d1a90-de37-4864-8bc3-b98ce19cb29d/94017692788.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/35cca86f-2dc6-49be-b9ce-7607a3aedb7b/66331184789.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8100877d-74c7-4609-b429-1e522a3b59bc/zuzuxusosipop.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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