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://cctraff.ru/strik?keyword=excel+vba+refresh+worksheet+every+second In PDF document text

  • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/sokilijaw.pdfIn PDF document text
  • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/f5d445.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/0c2a61a5-3116-44d3-aac2-54a9e9fe8863/futopakilarog.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2ee17a38-d69f-4ff2-8479-3d61e9d95a19/69548445514.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/94d5cd4e-b2e3-4776-9db7-91c5f54fde3b/89395542603.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/53f05c8b-0a88-4906-ae77-0348c4169a7c/34960686327.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/8938/5888/files/tommy_emmanuel_blue_moon_lesson.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/0501/2891/files/excel_bookmark_formula.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/8127/5808/files/wonewagetazopobaxigu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/7400/8741/files/tokyo_ghoul_rebirth_mod_apk_2.2.2.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/5811/0363/files/wise_onion_rings_nutrition_facts.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/9089/3730/files/samsung_rf31fmesbsr_repair_manual.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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