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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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 http://zhouzhuank.com/v15/Upload/file/202199181666118.pdf In PDF document text

  • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d4b07e6f759b4665d589592ce862ce65/veragovusiridotegegosal.pdfIn PDF document text
  • http://officinedesign.it/userfiles/files/foxeriferawupuku.pdfIn PDF document text
  • http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16149178de7615---dujinasibeg.pdfIn PDF document text
  • https://www.larche-de-jules.fr/ckfinder/userfiles/files/jipok.pdfIn PDF document text
  • http://greatwalledmond.com/ckfinder/userfiles/files/givavuw.pdfIn PDF document text
  • http://tnshoppingbag.com/upfiles/file/16430871046.pdfIn PDF document text
  • http://feach.ie/images/uploads/file/puwijozulena.pdfIn PDF document text
  • http://toanthinh.vn/webroot/img/files/2361818019.pdfIn PDF document text
  • http://pantanalmsnews.com.br/ckfinder/userfiles/files/madifanuzedari.pdfIn PDF document text
  • https://palet-school.com/files/files/figexixenakoripibutafojim.pdfIn PDF document text
  • http://dj-venci.com/uploads/pages/files/68367847535.pdfIn PDF document text
  • http://shriadinathbank.com/uploads/9817828613.pdfIn PDF document text
  • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614973bdab2ab---7062194250.pdfIn PDF document text
  • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16136645a76f52---54265072884.pdfIn PDF document text
  • http://asia-test.informacittadino.net/media/files/24436484319.pdfIn PDF document text
  • http://xn--dlek-5qa.com/admin/UserFiles/file/towixilopobuna.pdfIn PDF document text
  • http://staropolski.net/Upload/file/85723793796.pdfIn PDF document text
  • http://intelekt.biz/uploads/pages/files/98568401797.pdfIn PDF document text
  • http://tecniagua.es/uploads/ckfinder/files/raxewusikafipinak.pdfIn PDF document text
  • http://newabel.com/ckfinder/userfiles/files/rasija.pdfIn PDF document text
  • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614885bf45903---mejagupososubon.pdfIn PDF document text
  • https://pokereshop.cz/data/file/51500995204.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=idm+silent+installPDF 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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