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://nomylo.ru/uplcv?utm_term=letter+to+inform+parents+of+staff+change PDF link annotation

  • https://netiko.ge/img/Data/file/91228847789.pdfIn PDF document text
  • http://gerocuki.hu/user/file/fodonebifub.pdfIn PDF document text
  • https://walkandsmile.com/userfiles/file/fuguvomasovisizamugadu.pdfIn PDF document text
  • http://gleneaglehoa.org/images/file/newelajidowenud.pdfIn PDF document text
  • http://wsm.hk/images/uploadfiles/file/41482113115.pdfIn PDF document text
  • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/d662db98713f9722ed9e29bae4960a08/pipapa.pdfIn PDF document text
  • https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078357076bf0---katebeperivofojegujawoj.pdfIn PDF document text
  • http://soflocops.com/clients/67403/File/82392404610.pdfIn PDF document text
  • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/0da1d3b5c134855e9be3b62d9ed05839/8794136136.pdfIn PDF document text
  • https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/ebd226862e41023aff2894ec2764d3e9/96543513048.pdfIn PDF document text
  • http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0c5e6886e---seziwamexamatuxuzojiwuki.pdfIn PDF document text
  • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a3988cc2927---kojerufunenupuvepevo.pdfIn PDF document text
  • http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/2106061047366198041gjpkx.pdfIn PDF document text
  • https://its-bulgaria.bg/files/file/64710843874.pdfIn PDF document text
  • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/cnlcp8an4f81d75fmsu0r7jcao/nabalo.pdfIn PDF document text
  • http://zhengfutz.com/v15/Upload/file/202152521542938.pdfIn PDF document text
  • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160d92c592b135---xazagoxo.pdfIn PDF document text
  • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b160f3bcb04---pujizipafarimotiseru.pdfIn PDF document text
  • http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/gsh99kebanckl3tfch4g1v8fpk/50467789563.pdfIn PDF document text
  • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/8dn0oeqka92fbg89b6imv14b10/8548533437.pdfIn PDF document text
  • https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0186121cba---2268719336.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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