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://archism.ru/uplcv?utm_term=gigartina+chamissoi+pdf PDF link annotation

  • https://tramtron.vn/uploads/files/files/jebagaj.pdfIn PDF document text
  • http://safeabortionnepal.com/userfiles/file/gemuxapalubisumip.pdfIn PDF document text
  • https://bulgariapools.com/contents//files/tojopopimuruvosevoloxiz.pdfIn PDF document text
  • https://trellisdundee.com/wp-content/plugins/super-forms/uploads/php/files/b2cb0e8990be2989cd0ae63424b2b9d2/rorunivafuzekonaluxovogaf.pdfIn PDF document text
  • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/3a0e4284de16044916186e08d29b963f/54319037271.pdfIn PDF document text
  • http://weiken-rc.com/upload/files/fupuvij.pdfIn PDF document text
  • https://zd-zeta.com/uploads//files/202108062030065672.pdfIn PDF document text
  • https://www.esfa.bg/root/ckfinder/userfiles/files/98033103366.pdfIn PDF document text
  • http://stefanourso.com/public/userfiles/file/98518206232.pdfIn PDF document text
  • http://m-styleauto.com/js/upload/files/89194495562.pdfIn PDF document text
  • http://01host.ru/userfiles/files/jugodoponakujeje.pdfIn PDF document text
  • https://smg.bid/ckfinder_userfiles/files/kelugipetixix.pdfIn PDF document text
  • http://cnzhongkui.com/fckeditor/editor/filemanager/connectors/php/uploads/file/250903393805.pdfIn PDF document text
  • http://skogsformedling.se/bilder_umeny/File/69965012831.pdfIn PDF document text
  • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/61g30mmulvojd4n6gk6rfoil3b/24784176996.pdfIn PDF document text
  • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3806e4191---17291915492.pdfIn PDF document text
  • http://comp-art.ru/userfiles/file/bexogitelozaxiliri.pdfIn PDF document text
  • http://alisawedding.com/upload/users/files/nuzapojefafujugesapoxove.pdfIn PDF document text
  • https://salvamontbihor.ro/app/webroot/files/userfiles/files/65998630266.pdfIn PDF document text
  • http://desushibar.com/userfiles/file/sonugazixubor.pdfIn PDF document text
  • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/t0gj9d6ca3ksmroelcrk8t0adi/61167436252.pdfIn PDF document text
  • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1611643e988bb4---xokomepimiponawe.pdfIn PDF document text
  • http://biosafety.biz/ckfinder/userfiles/files/59205288133.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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