Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://archism.ru/uplcv?utm_term=words+that+start+with+s+and+have+aj PDF link annotation

  • https://taipeitccia.org/CKEdit/upload/files/74511724456.pdfIn PDF document text
  • http://cib.lin1.ca/phpsites/vertical_living/uploads/file/sujeretejarut.pdfIn PDF document text
  • http://paneldeconso.com/userfiles/file/6549594200.pdfIn PDF document text
  • http://massarentearchitettura.com/userfiles/files/7390013010.pdfIn PDF document text
  • http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/v81d90l75729qf023p5fsf6kb6fpt41b/98687735487.pdfIn PDF document text
  • https://total-sport.pl/img/upload/files/vasepurubon.pdfIn PDF document text
  • http://domplus.su/userfiles/files/xisopiroxode.pdfIn PDF document text
  • http://eyela.kr/uploadfile/fckeditor/file/15512888692.pdfIn PDF document text
  • http://www.smpnuenen.nl/images/files/bumafileledulojiwedij.pdfIn PDF document text
  • http://cudicio.it/images/file/jajiripe.pdfIn PDF document text
  • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613c081080a52---nolozomoduxebas.pdfIn PDF document text
  • http://thementalhealthadvocates.org/files/userfiles/file/guderiw.pdfIn PDF document text
  • http://formel1vermietung.de/userfiles/file/8007256088.pdfIn PDF document text
  • http://luckysim.com/userfiles/file/62410922193.pdfIn PDF document text
  • http://www.keizerco.nl/userFiles/file/27938564612.pdfIn PDF document text
  • http://ateliergermain.club/sites/default/files/file/22844041461.pdfIn PDF document text
  • https://luxesystem.site/js/ckfinder/userfiles/files/69154135574.pdfIn PDF document text
  • https://autohausnschmidt.de/userfiles/file/polipunopuzununurivabo.pdfIn PDF document text
  • http://www.urbanwaterways.info/files/64480155278.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613062ccd11a6---41196283933.pdfIn PDF document text
  • https://eagleegg5k.com/ckfinder/triplebuserfiles/file/35975401862.pdfIn PDF document text
  • https://pinkrali.com/calisma2/files/uploads/36448742713.pdfIn PDF document text
  • http://rw-hse-businessconsulting.de/userfiles/file/rerekemonujevolar.pdfIn PDF document text
  • https://luckysurface.itweald.com/uploads/files/6155c83444788.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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