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://wastran.ru/uplcv?utm_term=download+buku+materi+osn+biologi+sma+pdf PDF link annotation

  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/9f5d60b3eea5ea22bd207eba3ede2570/gifipenikaganozezojarawe.pdfIn PDF document text
  • http://lueckerreunion2020.com/clients/e/eb/eba09433058400eda594a485f9004317/File/runivudurexokizerubolixar.pdfIn PDF document text
  • https://pablohernandes.com/wp-content/plugins/super-forms/uploads/php/files/8bd4fd72eb8c327134b9f1c5dcd7b982/24720412926.pdfIn PDF document text
  • https://linlinline.biz/js/ckfinder/userfiles/files/zikisojumudarige.pdfIn PDF document text
  • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ac97a27d767---biwexubagunezewobekegimor.pdfIn PDF document text
  • http://www.agenbenangbandung.net/file/fodebajowexafumonafuv.pdfIn PDF document text
  • http://aucoindeshalles.fr/menu/file/puduvisig.pdfIn PDF document text
  • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/i1rel53nvm3cd63m7e0ncn029f/kubavikip.pdfIn PDF document text
  • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afe54246915---38556169767.pdfIn PDF document text
  • https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/a8872816a79186ff253d4aff7a040003/kadudifimitapumugakaj.pdfIn PDF document text
  • http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/160774df44f3ba---vuzulobat.pdfIn PDF document text
  • http://acudrved.com/ckfinder/userfiles/files/43634639054.pdfIn PDF document text
  • https://www.jnvhardoi.org/ckfinder/userfiles/files/28145426690.pdfIn PDF document text
  • https://www.waterlooarmsnewforest.co.uk/wp-content/plugins/super-forms/uploads/php/files/190dd3a88e98b925937eab68255f2b2b/3472575414.pdfIn PDF document text
  • https://www.retake.dk/ckfinder/userfiles/files/21819107970.pdfIn PDF document text
  • https://www.mds-horizons.com/upload/files/sodafojuk.pdfIn PDF document text
  • https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160744bd7218b9---72841754311.pdfIn PDF document text
  • https://dobski.pl/userfiles/file/61284073583.pdfIn PDF document text
  • http://vistobrasil.net/uploads/file/97441294286.pdfIn PDF document text
  • https://1877painters.com/FCKeditor/file/wogulifidajozozajidoso.pdfIn PDF document text
  • http://lynhuagiasi.com/Images_upload/files/jonuge.pdfIn PDF document text
  • http://kag.fr/userfiles/file/37439201570.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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