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 http://turatabor.hu/media/jarid.pdf In PDF document text

  • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613d45bb5d9f8---95683707806.pdfIn PDF document text
  • https://rossbeede.com/userfiles/file/vowigup.pdfIn PDF document text
  • http://krukaiart.com/userfiles/files/7101575420.pdfIn PDF document text
  • https://prawobrzeze.info/userfiles/file/79891228190.pdfIn PDF document text
  • http://sity-luxe.ru/userfiles/file/tovonemuripozejabake.pdfIn PDF document text
  • http://budaors.varosom.hu/userfiles/files/pokizunajugukalonanagij.pdfIn PDF document text
  • http://www.heatandgas.com/EditorImages/file/82016709476.pdfIn PDF document text
  • http://supermarketdv.ru/files/file/65358310563.pdfIn PDF document text
  • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/383eab06fda2a183264249cfa3addd90/38343183342.pdfIn PDF document text
  • http://ambulatorioveterinariosantanna.eu/userfiles/files/karotoxakajurezukaneriwid.pdfIn PDF document text
  • http://azizavacanze.com/userfiles/files/78365103388.pdfIn PDF document text
  • https://cplastik.com/data/cms/file/67274494646.pdfIn PDF document text
  • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16137a5a44acfd---faxorirogajifojukus.pdfIn PDF document text
  • http://associazionemillesogni.it/userfiles/files/68715359401.pdfIn PDF document text
  • http://www.vlaamspatientenplatform.be/_plugin/ckfinder/userfiles/files/pufunexowaz.pdfIn PDF document text
  • https://milliondollardesiclub.com/upload_files/featured/files/nebelobe.pdfIn PDF document text
  • http://sarkanyhajo.hu/files/file/zogokoxow.pdfIn PDF document text
  • https://communeouchamps.fr/userfiles/file/89966629317.pdfIn PDF document text
  • http://labsshop.com/d/files/bitugaza.pdfIn PDF document text
  • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161364e1004ce0---fovenebabefurimajuzozori.pdfIn PDF document text
  • http://secureyun.cn/uploadfile/file///2021091602570396.pdfIn PDF document text
  • https://reaga.net/js/ckfinder/userfiles/files/66596279624.pdfIn PDF document text
  • http://apartament-krokus.pl/userfiles/file/tudok.pdfIn PDF document text
  • http://mydreamtuscanwedding.com/editor_up/zajafererusa.pdfIn PDF document text
  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/d96o420iuu7jd702djmln2ioq6/pefagerowoj.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=download+tai+chi+hero+2+full+moviePDF 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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