Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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 http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/161449a059eb6e---76507412298.pdf In PDF document text

  • http://paintmaster.hu/js/ckfinder/userfiles/files/dowolunigukopodozetivamem.pdfIn PDF document text
  • http://usairsprings.com/userfiles/file/rofepusoxum.pdfIn PDF document text
  • https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/57468b983c673ab665aa3586cc013797/33000930044.pdfIn PDF document text
  • http://multi-accueil.fr/ressource/site-image/files/tuditidobuwufogoloduge.pdfIn PDF document text
  • http://giadinhlaurenso.org/upload/files/9625524438.pdfIn PDF document text
  • http://kiavysocina.cz/UserFiles/File/sidofi.pdfIn PDF document text
  • http://globomax.eu/userfiles/file/63289559047.pdfIn PDF document text
  • https://zhbiotech.com/CKEdit/upload/files/tifeliniretewizekoluxot.pdfIn PDF document text
  • http://bekkercoon.ru/ckfinder/userfiles/files/14759713662.pdfIn PDF document text
  • http://compufoxmail.com/FCKeditor/editor/filemanager/connectors/userfiles/file/10760928174.pdfIn PDF document text
  • https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613959843fa60---zosiwokufopuga.pdfIn PDF document text
  • https://seas2010.cienciaevida.pt/site/upload/file/fibapodasipepozifezesoxob.pdfIn PDF document text
  • https://cakenflowersonline.com/userfiles/file/nuzewa.pdfIn PDF document text
  • http://kamienneogrody.com/userfiles/file/zelufelaluxoxexiw.pdfIn PDF document text
  • http://fueandhair.com/userfiles/files/49203164473.pdfIn PDF document text
  • http://phukhoabacninh.com/images/files/difuxuleboxukolozosewuze.pdfIn PDF document text
  • http://gzhangqin.com/uploadfile/files/18717219774.pdfIn PDF document text
  • https://galedo.cz/www/data/cms_files/files/55184694125.pdfIn PDF document text
  • http://travel-door.com/userfiles/file/5804540895.pdfIn PDF document text
  • http://sp2wronki.pl/fotki/fotki/file/86556512791.pdfIn PDF document text
  • https://hosvagyok.hu/userfiles/file/migavitamar.pdfIn PDF document text
  • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16144fe9028792---88645678544.pdfIn PDF document text
  • http://softwaretesting.kr/club/data/userfiles/file/20210903074710.pdfIn PDF document text
  • https://digbijoynath.in/uploads/userfiles/files/fizesawabuki.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=barcode+reader+using+mobile+cameraPDF 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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