Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://infrive.ru/uplcv?utm_term=worksheet+on+interjection PDF link annotation

  • http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606d353b1ddb5---44097074350.pdfIn PDF document text
  • https://lea-inc.com/wp-content/plugins/super-forms/uploads/php/files/3a06354f98734ad8bfee5108d5f41079/runikugaseg.pdfIn PDF document text
  • https://felix-schulze.biz/wp-content/plugins/super-forms/uploads/php/files/4c43hj4e1mgtauoosme522p59l/82589682846.pdfIn PDF document text
  • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b5f51310dd0---11909827078.pdfIn PDF document text
  • https://franciscovalles.comtraining.cl/userfiles/files/lolaxulawifet.pdfIn PDF document text
  • https://senarathgroup.lk/assets/media/file/jalesuj.pdfIn PDF document text
  • https://liantoong.com/archive/upload/files/80745936065.pdfIn PDF document text
  • https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/adf6b2f027f603347a1fa1ad89464a09/goguz.pdfIn PDF document text
  • http://meimagedance.tw/ufiles/files/53571906218.pdfIn PDF document text
  • https://srmhomes.com/images/bulk_images/files/56303664059.pdfIn PDF document text
  • http://extracam.es/app/webroot/arxius/file/46205791608.pdfIn PDF document text
  • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/377e6d408bd783cbb2a7558286a6724e/pazuro.pdfIn PDF document text
  • https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/81bf96e20d7f7f270fa12dacf29292a2/bozazo.pdfIn PDF document text
  • https://bataretak.com/img/files/file/78179274883.pdfIn PDF document text
  • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/0e82lig4jcvva988067te0eai2/mafujokisenuk.pdfIn PDF document text
  • http://diversecityuk.com/userfiles/file/vapewuxipuwusaweroxa.pdfIn PDF document text
  • http://ibb-online.ru/f/file/mumeguzijimetojop.pdfIn PDF document text
  • http://peach2560.xyz/js/ckfinder/userfiles/files/26796010065.pdfIn PDF document text
  • https://soudurelausiere.ca/upload/editor/file/komeguja.pdfIn PDF document text
  • https://gmnavarra.es/ckeditor/files/savidetipupamafomese.pdfIn PDF document text
  • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1612f906c2e9dd---bovipadifenedajepezafafuz.pdfIn PDF document text
  • http://chingyi.tw/userfiles/files/20061477809.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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