Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://archism.ru/uplcv?utm_term=super+mario+maker+2+download+for+android PDF link annotation

  • http://gzcaifeilai.com/ckfinder/userfiles/files/202109020253391727.pdfIn PDF document text
  • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614159180b9df---xuzozo.pdfIn PDF document text
  • http://ebsenglish.net/_UploadFile/Images/file/88611906992.pdfIn PDF document text
  • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/55741816b7d91489834cd51b53c861fd/42967970231.pdfIn PDF document text
  • https://ego-sofa.tw/uploads/files/202109072204297269.pdfIn PDF document text
  • http://cz-synergy.cz/data/file/bosilukevipoluza.pdfIn PDF document text
  • http://iact2001.com/userData/board/file/fodojewabepetunevuzavusa.pdfIn PDF document text
  • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16142ce4c9792e---83056605086.pdfIn PDF document text
  • https://maydangson.com/vietkiendo/upload/file/83255058792.pdfIn PDF document text
  • http://www.ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/50119318761.pdfIn PDF document text
  • http://metapolar.hu/tmp/mejorumovesu.pdfIn PDF document text
  • https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/2db311e1b79dad10810029fcb99bce75/3860894698.pdfIn PDF document text
  • http://dobryremont.pl/ebobas/portal/app/webroot/img/tmp/file/16311172771431.pdfIn PDF document text
  • http://marljivo.hr/UserFiles/files/77322010920.pdfIn PDF document text
  • https://rentcar888.com/uploads/files/202109070311147589.pdfIn PDF document text
  • https://www.willmarareachamber.com/ckfinder/userfiles/files/gawifarobafi.pdfIn PDF document text
  • http://unitec-egypt.net/userfiles/file/sefagemonigon.pdfIn PDF document text
  • https://wspaperbag.com/userfiles/file/26148330250.pdfIn PDF document text
  • http://nscenter.cn/upload/files/nunokiruselarekuwivojajeb.pdfIn PDF document text
  • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/63r3psaesu5g5me7cu4vdj0r6i/65377999249.pdfIn PDF document text
  • http://vizugy.hu/uploads/files/902956186.pdfIn PDF document text
  • https://hankilfood.com/userfiles/file/20210910090601.pdfIn PDF document text
  • https://aradmissions.com/ci/userfiles/files/jitosedamofeseled.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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