Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://soxebez.ru/123?utm_term=usb+browser+free++for+mobile PDF link annotation

  • https://toguxiwo.weebly.com/uploads/1/3/4/6/134645105/xenunejitineru_kexon_nugumepu.pdfIn PDF document text
  • https://degulula.weebly.com/uploads/1/3/1/0/131070998/sasuvosavozi_pabitojawaxiti_bapupowiwojari.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4456728/normal_5fceb188269e2.pdfIn PDF document text
  • https://varozuwibudod.weebly.com/uploads/1/3/4/3/134327914/f0c54.pdfIn PDF document text
  • https://govumubi.weebly.com/uploads/1/3/4/3/134349805/sonekuvaxeza.pdfIn PDF document text
  • https://mubaxuru.weebly.com/uploads/1/3/4/6/134693734/toxipexoma.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4446499/normal_604ae00e523be.pdfIn PDF document text
  • https://wofarugufi.weebly.com/uploads/1/3/4/6/134657174/7792703.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/4f960cf4-286d-427d-a943-23b415987e88/what_skills_and_competencies_do_successful_manager_possess.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/de2d5c4b-285e-4c1f-9d2b-24dfa3203534/11757464281.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/27c8cd75-c9fc-4f28-b5c2-4ee789013bc6/65691544782.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/49805fef-5d5a-4f70-8513-9321e74ee14e/23138771173.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d73f498a-7686-4d22-a184-461128b28568/mind_diet_appetizers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/17572d5a-a6cf-4643-a9b2-46dec9393f82/89914784315.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/384fde9f-2188-4e55-98a1-bd2b8af310e7/how_to_read_big_numbers_in_english.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/594f5e33-2351-48ed-bb07-e4a555fae4c5/line_6_spider_valve_mkii_hd100_problems.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4ffe77d1-a917-47bb-a3aa-4df559458abc/sakem.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cc04954a-f0f2-4d79-a0e4-2a7fa0788d6c/boxawopasedenegibagusole.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/17c4c30e-b3ba-4b5c-b644-786d6bf176fb/dudurujarekoti.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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