Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://crysiq.ru/uplcv?utm_term=libro+comunicacion+oral+y+escrita+cengage+pdf PDF link annotation

  • https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/e92481a273e21ae8a9e6abe29c7a18da/zulesosutod.pdfIn PDF document text
  • https://mut-zur-veraenderung-hambuch.de/userfiles/file/sigolawozawerodofejejo.pdfIn PDF document text
  • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160717d2cd89ec---72977974736.pdfIn PDF document text
  • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/d0bbdc9ce792bd3c8308382df7a1f4ba/tuzuferivelazawujopidu.pdfIn PDF document text
  • https://epos.nu/ckfinder/userfiles/files/vuvegififojigulima.pdfIn PDF document text
  • https://dusunceokulu.net/resimler/files/fokidot.pdfIn PDF document text
  • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e342fc0cb3---63782919217.pdfIn PDF document text
  • https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d90e185f273---makowolowonugekitikunidik.pdfIn PDF document text
  • http://tantusmarina.com/UserFiles/file/minujefazut.pdfIn PDF document text
  • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160966ea9820ae---74646120946.pdfIn PDF document text
  • http://huucodatlanh.com/userfiles/file/61638511006.pdfIn PDF document text
  • https://www.pepinieres-gey.fr/ckfinder/userfiles/files/zotuwinuf.pdfIn PDF document text
  • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/587e1cbdb8d72569ecd678475e3b22e5/vizizubasir.pdfIn PDF document text
  • http://enjoy.sk/editor_uploads/system/files/35039657679.pdfIn PDF document text
  • http://filippodelvita.com/demo/userfiles/file/paxuje.pdfIn PDF document text
  • http://arndt-fahrschule.de/userfiles/file/voxemowodekemagedodedu.pdfIn PDF document text
  • https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/2235225516c05e5fe8c140c75e31eaac/koxikepelifajizuzojimeka.pdfIn PDF document text
  • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a24c352964b---veveba.pdfIn PDF document text
  • https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160b55294aaffd---mejixetewonusip.pdfIn PDF document text
  • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160d5bf58eb65d---38622262850.pdfIn PDF document text
  • http://davidhammerstein.org/ckfinder/userfiles/files/bonegosoxuzupevalufunudav.pdfIn PDF document text
  • http://aweibel.com/Photo/file/88722812965.pdfIn PDF document text
  • http://biosafety.biz/ckfinder/userfiles/files/36431551074.pdfIn PDF document text
  • http://xn--b1akwe.xn--p1ai/userfiles/file/mebanetomalobugobeteborik.pdfIn PDF document text
  • http://mobydick-band.de/fckdata/file/34745824394.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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