Malicious PDF — malware analysis report

Heuristics 8

• 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://feltshoe.com/userfiles/file/93453406011.pdf In PDF document text

  • http://24horasnoar.com.br/ckfinder/userfiles/files/93296467067.pdfIn PDF document text
  • https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/885hbp6q6kbe029hboneljti7t/60492673229.pdfIn PDF document text
  • http://perchegouet.com/ckfinder/userfiles/files/bozamakupivibusofokiduwow.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608a170b4b0f6---32875487203.pdfIn PDF document text
  • http://alphabodysupplements.com/newerac2c/userfiles/file/42233525322.pdfIn PDF document text
  • http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cf6c3a3ea1---kinuvir.pdfIn PDF document text
  • http://yachtandgulet.com/userfiles/file/45981878566.pdfIn PDF document text
  • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/459c57312229ea78781bbc4308c928b4/30107301442.pdfIn PDF document text
  • http://argol-editions.fr/userfiles/file/relave.pdfIn PDF document text
  • http://bigcool.net/webroot/img/files/29434351994.pdfIn PDF document text
  • http://burningspearmarketplace.com/js/ckfinder/userfiles/files/sujesod.pdfIn PDF document text
  • http://arunimaflavours.com/userfiles/file/pudadekavikijejereser.pdfIn PDF document text
  • http://gumberryoleschool.com/clients/33891/File/gaxuwaje.pdfIn PDF document text
  • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16077c1363d9cd---26441316059.pdfIn PDF document text
  • https://genericdiabeticteststrips.com/userfiles/files/59911425351.pdfIn PDF document text
  • http://garage-ys.info/js/upload/files/mozarutaw.pdfIn PDF document text
  • http://www.palmettoexpresslanes.com/system/js/back/ckfinder/userfiles/files/81067265108.pdfIn PDF document text
  • https://people11people.com/uploads/File/54959285219.pdfIn PDF document text
  • http://okwecare.com/usr/userfiles/files/goxotutipuxekepubojita.pdfIn PDF document text
  • http://thetestmag.com/userfiles/files/45694512121.pdfIn PDF document text
  • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e690b01117---83077192276.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/vuribil.pdfIn PDF document text
  • http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc268229418---dalikubawedegaraburabebas.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=apple+corporate+culture+pdfPDF 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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