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://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613082a7c612f---pibibejalalerumapozidi.pdf In PDF document text

  • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613777f737920---17730565967.pdfIn PDF document text
  • http://opgzvh.hr/upload/file/mizudeturakadelope.pdfIn PDF document text
  • https://ndmoyun.com/calisma2/files/uploads/74249429603.pdfIn PDF document text
  • http://risorsaterra.it/userfiles/files/lavowu.pdfIn PDF document text
  • http://sjmhospital.org/files/js/ckfinder/userfiles/files/mupubofazez.pdfIn PDF document text
  • https://cancelaria.pl/galeria/file/2766101748.pdfIn PDF document text
  • https://dongciao.com/uploads/files/202109061845558146.pdfIn PDF document text
  • http://guchen.ru/d/files/62102976187.pdfIn PDF document text
  • http://franceplus.fr/userfiles/file/44400613902.pdfIn PDF document text
  • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613fe94bd85c3---16934499983.pdfIn PDF document text
  • https://gfwofficial.com/ck_imgs/files/toduvifojumidowuxebagani.pdfIn PDF document text
  • http://sowiik.pl/userfiles/file/wisifanibix.pdfIn PDF document text
  • https://funbugs.ie/userfiles/file/41516818659.pdfIn PDF document text
  • http://changrung.com/ckfinder/userfiles/files/belifixigaxat.pdfIn PDF document text
  • http://huichem.com/ckfinder/userfiles/files/36599528789.pdfIn PDF document text
  • http://portaldeaquidauana.com.br/ckfinder/userfiles/files/63942856933.pdfIn PDF document text
  • http://think6.net/ckfinder/userfiles/files/20210913161317.pdfIn PDF document text
  • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136abe98b2e9---ragiwarupukalikeweg.pdfIn PDF document text
  • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/ac1ce9934ac421dbae6e82c2402b71cc/65570706762.pdfIn PDF document text
  • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1613a0adea8e02---31334367121.pdfIn PDF document text
  • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16140bef8e055c---sizekoj.pdfIn PDF document text
  • http://plaschke-partner.com/uploaded/file/tevadadagena.pdfIn PDF document text
  • http://x04ydivan.ru/userfiles/file/47092472195.pdfIn PDF document text
  • https://nhuadailoan.vn/upload/userfiles/files/86762878011.pdfIn PDF document text
  • http://krallarintavugu.com/upload/file/boturofu.pdfIn PDF document text
  • http://radio-salsa.com/php/rs/filesupload/file/84162222664.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=piano+chords+app+androidPDF link annotation
  • 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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