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://postele-z-masivu.sk/ckfinder/userfiles/files/tarobazulukujutabifavefuj.pdf In PDF document text

  • https://aventura-agence.lu/userfiles/files/17548178446.pdfIn PDF document text
  • https://cottonweb.net/userfiles/file/33040233563.pdfIn PDF document text
  • http://ceroki.com/image/files/96596214779.pdfIn PDF document text
  • http://e-pisanie-prac.pl/famprojekt_z_serwera/images/file/20459418685.pdfIn PDF document text
  • http://bora.su/ckfinder/userfiles/files/44772268145.pdfIn PDF document text
  • http://aktifithalat.com/resimlerfiles/42239718221.pdfIn PDF document text
  • http://retrievers.su/ckfinder/userfiles/files/65898490626.pdfIn PDF document text
  • http://aldo-ins.com/userfiles/file/pafatazidot.pdfIn PDF document text
  • http://trust-law-firm.com/userfiles/file/20210910085228_451629496.pdfIn PDF document text
  • http://formpart.com/upload/ckfinder/files/mewijegetawegopija.pdfIn PDF document text
  • http://qamsar.org/userfiles/files/46487962994.pdfIn PDF document text
  • http://kramnyca.info/img/upload/editor/file/wevudadokamugukuso.pdfIn PDF document text
  • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613c1dad0cbb2---momibuvererinu.pdfIn PDF document text
  • http://skyrun-arser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210916085307048727egt9k2.pdfIn PDF document text
  • http://ruiqingchem.com/upload/files/22032548855.pdfIn PDF document text
  • https://nikoljski.com/ckfinder/userfiles/files/47204451219.pdfIn PDF document text
  • http://aimecostruzioni.it/userfiles/files/favex.pdfIn PDF document text
  • http://dajia1.com/upfiles/editor/files/77490696049.pdfIn PDF document text
  • http://kahounova.cz/userfiles/file/59831030227.pdfIn PDF document text
  • https://lotusmarinevn.com/upload/files/73304672433.pdfIn PDF document text
  • http://starma.pl/files/file/13993621034.pdfIn PDF document text
  • http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/1614161fb26b87---lumarotojipetafevanada.pdfIn PDF document text
  • http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/erpjau5b5rn4tbi4ssk9s7u3l2/87368369538.pdfIn PDF document text
  • http://tjjjsh.com/uploads/files/18390571499.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=android+how+to+change+app+notification+soundPDF 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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