Malicious PDF — malware analysis report

Heuristics 8

• 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
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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=android+qr+codes PDF link annotation

  • http://fujiya-la.com/uploads/files/rirukesebe.pdfIn PDF document text
  • https://triyoga-tv.ru/userfiles/file/83474999980.pdfIn PDF document text
  • https://artesapanaderia.xyz/aym_image/files/86154592332.pdfIn PDF document text
  • http://wojno-stal.pl/pliki/file/jepikibeke.pdfIn PDF document text
  • https://godparents4tz.org/home/god/public_html/ckfinder/userfiles/files/wapisiwusidezu.pdfIn PDF document text
  • http://phuocthuan.vn/images/pic/file/41737455415.pdfIn PDF document text
  • http://nemochem.cn/upload/files/pexopivare.pdfIn PDF document text
  • https://netron.pt/app/webroot/media/files/gifidenuvubazibaxesa.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161450050cd5d2---58195963560.pdfIn PDF document text
  • https://u-spot.biz/js/ckfinder/userfiles/files/jebulopukobabuluxoma.pdfIn PDF document text
  • https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613edd22c82f4---kubunoverul.pdfIn PDF document text
  • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16139795f54614---63649785983.pdfIn PDF document text
  • http://tuhocxuatnhapkhau.com/uploads/ckfinder/files/22499235241.pdfIn PDF document text
  • http://tourister.kr/userfiles/file/rojixexosiduxalibixufu.pdfIn PDF document text
  • http://holzbau-napetschnig.at/lejulajewatof.pdfIn PDF document text
  • http://kesifveotesi.com/files/nimebosivugemazona.pdfIn PDF document text
  • http://rioairporttransfer.com/ckfinder/userfiles/files/jomalubitabefuda.pdfIn PDF document text
  • http://aurangabadptti.com/ckeditor/ckfinder/userfiles/files/tifutos.pdfIn PDF document text
  • https://mtestbd.com/assets/uploads/files/53166035356.pdfIn PDF document text
  • http://flexa.cz/docs/file/4645801194.pdfIn PDF document text
  • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16144c9eb64179---nepemipimewew.pdfIn PDF document text
  • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/cf328a4ebaa63bbacab745f46eeb4ccc/redigiseju.pdfIn PDF document text
  • https://selapro.com.au/application/third_party/ckfinder/userfiles/files/33902065786.pdfIn PDF document text
  • https://coolinterier.sk/upload/files/pupiregumijelevesami.pdfIn PDF document text
  • http://9275522-travel.com/userfiles/file/dafapi.pdfIn PDF document text
  • http://wernitznigg.at/files/70565390676.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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