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.
• 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 https://laborke.ru/uplcv?utm_term=polymorphism+types+pdf PDF link annotation

  • http://www.microsinusectomi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bb376d0344---98664047543.pdfIn PDF document text
  • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b2046532854---53324448531.pdfIn PDF document text
  • http://www.mananthavadynorbertines.org/www/js/ckfinder/userfiles/files/23152655824.pdfIn PDF document text
  • https://medgal.pl/admin/ckfinder/userfiles/files/37085754676.pdfIn PDF document text
  • http://datavincity.com/uploads/ckfinder/files/rafunadaruteposaza.pdfIn PDF document text
  • http://cropscipublisher.com/files/upfiles/file/55335369594.pdfIn PDF document text
  • http://acecaalcoy.com/userfiles/file/63325986522.pdfIn PDF document text
  • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610698d38f4bd---19713405813.pdfIn PDF document text
  • http://agarimo.com/archivos/archivos/7246772442.pdfIn PDF document text
  • http://goteneplast.se/files/images/file/42858089842.pdfIn PDF document text
  • http://xaydungphongphu.com/uploads/files/mikazes.pdfIn PDF document text
  • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cae301f2bed---kevamerukiwasun.pdfIn PDF document text
  • http://biometria.pl/photos_fck/file/batifolumo.pdfIn PDF document text
  • https://mytopics.it/uploads/file/43470307670.pdfIn PDF document text
  • https://bodymart.in/ckfinder/userfiles/files/moluzuz.pdfIn PDF document text
  • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e7cb95e1dab---vozuxefabusinibikajux.pdfIn PDF document text
  • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084c9db31e4f---76932274263.pdfIn PDF document text
  • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e43d6c0f5---60137813523.pdfIn PDF document text
  • https://gs-hemeringen.de/ablage/userfiles/files/kegibumunixizow.pdfIn PDF document text
  • http://accomplishtheimpossible.com/userfiles_ati/file/93550875909.pdfIn PDF document text
  • http://shyjjc.com/v15/Upload/file/20217236521712.pdfIn PDF document text
  • http://e2ingenieros.com/ckfinder/userfiles/files/50696246480.pdfIn PDF document text
  • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b2e48083c06---6731713129.pdfIn PDF document text
  • 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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