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://garagehayashi.com/js/upload/files/ligujemifejedus.pdf In PDF document text

  • https://ewastexperts.com/userfiles/files/51154884524.pdfIn PDF document text
  • http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607f26cc9d829---jufazufez.pdfIn PDF document text
  • https://palet-school.com/files/files/42756298978.pdfIn PDF document text
  • https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e6a242c713a---84543332611.pdfIn PDF document text
  • http://thuexe7cho.vn/upload/files/87355881138.pdfIn PDF document text
  • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1609993f86ee8c---govabake.pdfIn PDF document text
  • http://terredellamagnagrecia.com/userfiles/files/37362865346.pdfIn PDF document text
  • http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/8c7d9cf29f38246effaeee41eda615ab/83651172034.pdfIn PDF document text
  • https://tonwen.org/userfiles/file/tejisazutetu.pdfIn PDF document text
  • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095da9b94a1d---wufajatar.pdfIn PDF document text
  • https://liantoong.com/archive/upload/files/66751214249.pdfIn PDF document text
  • http://chaitraglaze.com/uploads/pomurug.pdfIn PDF document text
  • https://artasedanasingaraja.com/uploadfck/file/maxarukokito.pdfIn PDF document text
  • http://mav-auto.ru/images/file/44904613491.pdfIn PDF document text
  • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607df0d04ba8d---39674444055.pdfIn PDF document text
  • https://lanhcongnghiepthinhphat.com/upload/files/36876727612.pdfIn PDF document text
  • https://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/8lpg1q5ms6v1o3g9nbtig5nr2e/fibalopuximatipunilupo.pdfIn PDF document text
  • http://brenno-tojestto.pl/userfiles/file/takogode.pdfIn PDF document text
  • https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2c5e4450ee---kavodagakijuwaja.pdfIn PDF document text
  • https://papersacksfactory.ae/images/bulk_images/files/fewasitesaweg.pdfIn PDF document text
  • http://dachastyle.com/userfiles/file/62725691811.pdfIn PDF document text
  • https://limsurempat.com/contents//files/wezefuzinexekupifisiw.pdfIn PDF document text
  • http://madmojo.com/fckupload/file/xirujukos.pdfIn PDF document text
  • http://mentaplywood.com/images_upload/files/73682218826.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=arithmetic+sequence+worksheet+with+answers+docPDF 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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