Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• External URI info PDF_URI
  PDF contains an external URL action
• 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://s3.amazonaws.com/kudufigunabi/69237100662.pdf In PDF document text

  • https://s3.amazonaws.com/ribowexulo/vufazolakiwupoxid.pdfIn PDF document text
  • https://s3.amazonaws.com/bitizopovopaso/45355650321.pdfIn PDF document text
  • https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/wagafo.pdfIn PDF document text
  • https://traffset.ru/wb?keyword=chrome%20os%20%20windows%207%2032%20bitPDF link annotation
  • https://s3.amazonaws.com/falevi/embryology_development.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off0000faf3.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off0000faf3.bin)
  • https://static1.squarespace.com/static/5fc17af42e537a05ef0d3bea/t/5fc62c0e64571256540eb09a/1606822949379/xunesevalefab.pdfIn PDF document text
  • https://static1.squarespace.com/static/5fc5175d8787e8798986e946/t/5fd743b6ffab5d3c5615fe2f/1607943097988/are_you_lonely_full_song.pdfIn PDF document text
  • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf1cdcb3e0f577113bf3c/1606283728292/the_outsiders_chapter_6_comprehension_questions_and_answers.pdfIn PDF document text
  • https://static1.squarespace.com/static/5fc1cc6f0b6b03258f3bee00/t/5fcf1ea91901dd4d2ece063f/1607409321919/51390456817.pdfIn PDF document text
  • https://static1.squarespace.com/static/5fc0eab716f6d44b07bedc8b/t/5fc85c77094cf7617dbe88bd/1606966391910/pirate_king_one_piece_japanese.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b6d2d9c7-dae8-4b6a-b568-025db7e79887/ap_physics_2.pdfIn PDF document text
  • https://static1.squarespace.com/static/5fce796a1959eb4ceeb3f657/t/5fd69d5596ed101a3e4a042c/1607900502560/aqa_gcse_physics_workbook_answers.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_01_sfnt_off0000faf3.bin)

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