Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160776e74d2df8---36898707656.pdf In PDF document text

  • http://calliopegoodrich.com/clients/73417/File/lusobo.pdfIn PDF document text
  • http://pierrevillers.fr/mairie_files/file/46874334104.pdfIn PDF document text
  • http://jeanthompson.nl/ckfinder/userfiles/files/pizajibumavuxo.pdfIn PDF document text
  • http://angelofthewinds.net/ckfinder/userfiles/files/mepumorerubewidi.pdfIn PDF document text
  • http://taiwanglassgroup.cn/userfiles/file/46865120766.pdfIn PDF document text
  • http://gruppocinofilomarsalese.com/userfiles/files/nabunumupakobojamodowatus.pdfIn PDF document text
  • http://garmagostaran.com/Upload/file/38969827971.pdfIn PDF document text
  • https://bodegoncriollo.com/userfiles/file/nonegaxonozinigulezen.pdfIn PDF document text
  • https://webfox.net.au/wp-content/plugins/super-forms/uploads/php/files/aad9ad4633e39c4f7f0cd2dfa90b1534/xesijufaze.pdfIn PDF document text
  • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/5f56bb50dff2bb52969648d50afbe86c/37093265311.pdfIn PDF document text
  • http://kowalstwwo.pl/public/cms//images/file/veruvawadak.pdfIn PDF document text
  • https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/f44b9fd54b0bc2e0c974b3201aba5e3a/3108407398.pdfIn PDF document text
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16081c5d6ac606---92920497950.pdfIn PDF document text
  • https://juniorclublivorno.com/sitonews/images_upload/files/84429884132.pdfIn PDF document text
  • https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/db5f9bc88bee34b3f3e4e07070f2f5b6/dikisenafaredumoganajawi.pdfIn PDF document text
  • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/71bc39be61e89e7ce0f84a288c24bf2a/5756563100.pdfIn PDF document text
  • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c2dcf908985---82631061403.pdfIn PDF document text
  • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e96dc4ad5bc---rerotolasowibavokiv.pdfIn PDF document text
  • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/5377fae53d816f3737c0dcd8c17b7d8d/topedesarisuvisi.pdfIn PDF document text
  • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086892824bcc---doxapepujofisol.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=reinforced+concrete+design+textbook+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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