Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• 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://queure.ru/uplcv?utm_term=qr+in+android PDF link annotation

  • https://malmospelmanslag.se/userfiles/file/zubupinufesunelujesuj.pdfIn PDF document text
  • https://studybrilliant.online/app/webroot/img/userfiles/file/66575789101.pdfIn PDF document text
  • http://moriefrusca.com/userfiles/files/46965787693.pdfIn PDF document text
  • http://sm.ac.th/ckfinder/userfiles/files/witiragatowedip.pdfIn PDF document text
  • https://viceda.com/userfiles/file/jusesu.pdfIn PDF document text
  • http://ei-windykacja.pl/upload/file/nubuwutabitorupajeroza.pdfIn PDF document text
  • http://ibrahimalsada.com/pics/file/42226041404.pdfIn PDF document text
  • http://otworz-biuro-podrozy.pl/userfiles/file/kazope.pdfIn PDF document text
  • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135492adf49a---13209521226.pdfIn PDF document text
  • http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/65199458576.pdfIn PDF document text
  • https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f10fc7c0e4---vaxiguninesu.pdfIn PDF document text
  • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161353f0440cdd---fisurupevuxikonuwejir.pdfIn PDF document text
  • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c1ccba7a62---19637056829.pdfIn PDF document text
  • http://agrocare.hu/ckfinder/userfiles/files/99639757181.pdfIn PDF document text
  • https://shevian.com/images/file/sakubip.pdfIn PDF document text
  • https://everestart.com/images/stories/file/35230154193.pdfIn PDF document text
  • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/161341a0c46ec0---jalovubinonogubuzotamali.pdfIn PDF document text
  • http://asupuro.com/user_data/image/file/50590386984.pdfIn PDF document text
  • http://mid-europe-ex.com/images/blog/file/61001020434.pdfIn PDF document text
  • http://dabaizhongxue.com/upload_fck/file/2021-9-2/20210902130118607542.pdfIn PDF document text
  • http://a2hgghk.handylover.com/upload/files/rawibosojefuronulotun.pdfIn PDF document text
  • https://sunpower.lv/ckfinder/userfiles/files/95985435900.pdfIn PDF document text
  • http://granitemountainranch.net/userimages/rasufebajesirakogikeguriv.pdfIn PDF document text
  • http://sowa-architekci.pl/userfiles/files/72073742843.pdfIn PDF document text
  • http://fertilityupdates.com/userfiles/files/vitoniloximumozes.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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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