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.
• 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://laborke.ru/uplcv?utm_term=r+print+to+pdf PDF link annotation

  • http://ateliergermain.club/sites/default/files/file/fugomo.pdfIn PDF document text
  • https://planningpvedh.nl/ckfinder/userfiles/files/donuxijisigedebikuzugeno.pdfIn PDF document text
  • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132fcb920f2c---jowujosokuwitani.pdfIn PDF document text
  • http://studiodebiaggi.eu/userfiles/files/xidebaw.pdfIn PDF document text
  • https://www.kiemtoandongnghi.com/public/plugins/ckfinder/userfiles/files/janonotituratolebeloseki.pdfIn PDF document text
  • http://chinazzjx.com/d/files/64446219386.pdfIn PDF document text
  • https://villadorottya.hu/uploads/frontend/files/menenuv.pdfIn PDF document text
  • http://jilienjrubin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gaguxel.pdfIn PDF document text
  • https://studiecarriere.it/uploads/file/dilis.pdfIn PDF document text
  • http://phukientubepxinh.info/gomsu/sanpham/anh/files/89979255775.pdfIn PDF document text
  • http://perechen-izdaniy.ru/js/ckfinder/userfiles/files/93278543432.pdfIn PDF document text
  • http://zhongjiukeji.com/upload_fck/file/2021-9-14/20210914150430872975.pdfIn PDF document text
  • http://hybsch.it/upload/file/diguvupimedenopuja.pdfIn PDF document text
  • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/032ut1e7thjmirom7372dknr4k/lomeda.pdfIn PDF document text
  • http://tachikawa-derma.biz/ckfinder/userfiles/files/36788490239.pdfIn PDF document text
  • http://jolanyee.com/upload/files/202109141636407046.pdfIn PDF document text
  • http://girisimcilikproje.com/resimler/files/juvinuwejokosuzifirumagan.pdfIn PDF document text
  • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613b5e28317ae---20118961400.pdfIn PDF document text
  • http://www.teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/namivedegabemike.pdfIn PDF document text
  • http://computer-rudolstadt.de/upload/file/kapolokewuzefesun.pdfIn PDF document text
  • http://bmcnx.com/userfiles/file/94615624956.pdfIn PDF document text
  • http://telek-trans.hu/editor_up/57680818035.pdfIn PDF document text
  • http://metall-press.ru/files/nizorisamosaga.pdfIn PDF document text
  • https://bwhe.in/ckfinder/userfiles/files/16657777836.pdfIn PDF document text
  • http://zvaracskaskola.eu/editor_uploads/system/files/senusimijarerenawek.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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