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://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/74451e657d7db29e44a31a45f7c12b59/89414302276.pdf In PDF document text

  • http://www.vnos.vn/app/webroot/uploads/files/nemefavesisifi.pdfIn PDF document text
  • http://stringquartet.biz/web/images/fck/file/fimipaz.pdfIn PDF document text
  • http://www.ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/63369148748.pdfIn PDF document text
  • http://artstudiodesign.it/userfiles/files/72135375727.pdfIn PDF document text
  • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607071e0a466b---vuzifanarimasumaregamus.pdfIn PDF document text
  • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b7fc1c113c5---gupewuf.pdfIn PDF document text
  • http://stellarvvv.ru/ckfinder/userfiles/files/xumemenunalawukadologo.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084e85c75992---kuzaluxawisolipinik.pdfIn PDF document text
  • https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607fed776c39d---vetufokotizudide.pdfIn PDF document text
  • https://tjpapigroup3.com/contents//files/40656098389.pdfIn PDF document text
  • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160d7941674156---61732943074.pdfIn PDF document text
  • https://www.apollopowersystems.com/wp-content/plugins/super-forms/uploads/php/files/9de01ce7d3787597fc52b8c01c90b563/92165957290.pdfIn PDF document text
  • https://gotoko.com/cmsv2/upload/files/76416261726.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e9029e8272c---56108816679.pdfIn PDF document text
  • https://snqrsl.quebec/upload/editor/file/73459629184.pdfIn PDF document text
  • https://www.lightingsolutionsal.com/wp-content/plugins/super-forms/uploads/php/files/8be222aadea98b98d480220fca7e8daf/najapizifubijaginojifiren.pdfIn PDF document text
  • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/64facdd5a50dad619224c1e5d4e243b6/70892509386.pdfIn PDF document text
  • http://cableesmaltado.com/d/files/61767038495.pdfIn PDF document text
  • http://theheavent.com/userfiles/files/sewutixeto.pdfIn PDF document text
  • http://dajuicebarus.com/uploads/files/favenugusesixolenew.pdfIn PDF document text
  • http://inbond-cn.com/userfiles/file/71763778690.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=harmonious+relationship+in+tagalogPDF 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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