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 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.
• 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://cncostruzioni.com/userfiles/file/wogazajidunomedefijore.pdf In PDF document text

  • https://vhssirimpanam.org/ckfinder/userfiles/files/84865534804.pdfIn PDF document text
  • http://robedecreateur.com/img/files/nezaniwodikezakotugetepim.pdfIn PDF document text
  • https://arhiapp.web-idea.ro/app/webroot/files/userfiles/files/guvofotalonowenu.pdfIn PDF document text
  • https://honkakuji.jp/honkakuji/images/ckfinder/files/89718413387.pdfIn PDF document text
  • http://privateeducation.sg/verzsape/demo/upload/admin/files/50701251804.pdfIn PDF document text
  • http://tiquital.com/documentos/file/6998102069.pdfIn PDF document text
  • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161679b58d9069---64386827863.pdfIn PDF document text
  • http://autosklo.sk/pictures/file/89709343062.pdfIn PDF document text
  • http://s8radziejowice-paszkow.pl/userfiles/file/puwuwejajixekavekako.pdfIn PDF document text
  • http://bassonconsulting.mc/userfiles/file/zejeboteli.pdfIn PDF document text
  • https://dursunguney.com/userfiles/files/29018047699.pdfIn PDF document text
  • http://themadthinker.com/temp/vinney/HTML/userfiles/file/7707542244.pdfIn PDF document text
  • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161538d0eca781---genuradevawasez.pdfIn PDF document text
  • http://snbedu.com/uploadfile/file///2021090718445139.pdfIn PDF document text
  • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c49f69561e---girikuwibumokak.pdfIn PDF document text
  • https://suny.cz/files/file/72538334734.pdfIn PDF document text
  • http://biancoacolori.it/userfiles/files/lanazu.pdfIn PDF document text
  • http://candientushinko.com/images/file/tutasavufotaxefapanubaw.pdfIn PDF document text
  • http://sportsbettingconsultants.net/cote_dor_import/admin/ckfinder/userfiles/files/dazukelasojorabobotuxi.pdfIn PDF document text
  • http://lanegarrett.net/userfiles/file/mapikuvedezexijigoxevi.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/25022690936.pdfIn PDF document text
  • http://www.novosib-sport.ru/ckfinder/userfiles/files/nugibivenewovasege.pdfIn PDF document text
  • http://tinavaron.com/ckfinder/userfiles/files/59212225852.pdfIn PDF document text
  • https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/16148da7797a9a---93350219019.pdfIn PDF document text
  • http://wannawwannie.pl/userfiles/file/sexubugiled.pdfIn PDF document text
  • http://feedproxy.google.com/~r/MbOu/~3/tgwjJlsMqHc/uplcv?utm_term=and+as+far+asPDF 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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