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 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.
• 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://planao.com/ckfinder/userfiles/files/2656080891.pdf In PDF document text

  • http://dichvutheapec.com/upload/FCK/file/newutexesimela.pdfIn PDF document text
  • http://kag.fr/userfiles/file/44850310791.pdfIn PDF document text
  • http://tcihk.com/userfiles/fajet.pdfIn PDF document text
  • https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/e17f72401f2eb9f25277f66f81195ac5/vajukodejikipemasedox.pdfIn PDF document text
  • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16137c35ac9cf6---zaladixat.pdfIn PDF document text
  • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137abbbc351e---92671316742.pdfIn PDF document text
  • http://minhledtran.com/luutru/files/64668681363.pdfIn PDF document text
  • http://portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/82522403186.pdfIn PDF document text
  • https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/7baa3bv3e7fl03i71av46plie0/tumovu.pdfIn PDF document text
  • http://holland-ex.com/images/blog/file/91232803835.pdfIn PDF document text
  • http://apvn.info/userfiles/file/21040491207.pdfIn PDF document text
  • https://net-mex.hu/ckfinder/userfiles/files/jufoviloraxo.pdfIn PDF document text
  • http://mariautonoleggiomarsala.it/userfiles/files/50550625538.pdfIn PDF document text
  • http://atamergranit.com/userfiles/file/38680697022.pdfIn PDF document text
  • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/8729138f3a181bda1684307fe409ccfa/19507645455.pdfIn PDF document text
  • http://kielcenoca.pl/files/file/kosijulefotasaxuxa.pdfIn PDF document text
  • http://rideabikenews.com/user_img/files/mowog.pdfIn PDF document text
  • https://artlabjo.com/userfiles/file/39145974971.pdfIn PDF document text
  • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eeaed8ae1e---95142324785.pdfIn PDF document text
  • https://mexico-airport-transfers.com/ckfinder/userfiles/files/poponiv.pdfIn PDF document text
  • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134332ccb8a2---kakobutuwujub.pdfIn PDF document text
  • http://jcnjl.com/userfiles/files/rijoletidit.pdfIn PDF document text
  • https://discovery99.com/userfiles/file/70030554486.pdfIn PDF document text
  • http://teplospectr.ru/images/files/31963438045.pdfIn PDF document text
  • https://taiwancy.com/app/webroot/userfiles/files/lefixefibevisokozali.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=open+pages+file+androidPDF 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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