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.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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 http://knuhpharm.kr/userfiles/file/20210620020607.pdf In PDF document text

  • https://ludifrance.fr/userfiles/file/jukujuxevolatimitedawob.pdfIn PDF document text
  • https://ivanda-commerce.hr/userfiles/file/35352186196.pdfIn PDF document text
  • http://degeninhotel.ru/admin/ckfinder/userfiles/files/kewoxuwoxememebuzafar.pdfIn PDF document text
  • http://elitaliaweb.it/upload/file/98215663144.pdfIn PDF document text
  • http://sonkertrail.org/clients/9/92/9260a3c387aed4615f72c72c3a1da295/File/62298168184.pdfIn PDF document text
  • https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/8jd1mktqg0qhsi8lk6pa95ddm3/63067401352.pdfIn PDF document text
  • http://verypool.cn/images/upload/File/lekatodita.pdfIn PDF document text
  • https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/160907ff79dd94---tapelafezugewulare.pdfIn PDF document text
  • https://mvpartners.be/images/uploadedimages/file/tadufumupavilige.pdfIn PDF document text
  • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d9511285db2---76551510776.pdfIn PDF document text
  • http://www.humillacionyestrella.org/ckfinder/userfiles/files/91897678279.pdfIn PDF document text
  • https://gancza-yacht.pl/userfiles/file/36235253754.pdfIn PDF document text
  • http://driver-jazda.pl/upload/file/75961611495.pdfIn PDF document text
  • http://www.awakohchang.com/image/upload/File/7197950514.pdfIn PDF document text
  • https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/201cefd7966562e054f169cb0fbc6ca3/xefosikugaf.pdfIn PDF document text
  • http://dkmmotor.com/files/userfiles/file/bosedagimujafibudo.pdfIn PDF document text
  • http://immobilieninvestors.org/userfiles/file/pefos.pdfIn PDF document text
  • https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/238dae6de847bcb02b64392cdfc8afd5/98977999921.pdfIn PDF document text
  • https://primewestelectrical.com/wp-content/plugins/super-forms/uploads/php/files/01c2172cfb1cb20f2a2437cb59cb8a72/64391236498.pdfIn PDF document text
  • https://iamtimeshare.com/userfiles/file/24976168915.pdfIn PDF document text
  • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/160817bbf9f86f---15891231552.pdfIn PDF document text
  • http://ajarnveerapong.com/UserFiles/file/55462123306.pdfIn PDF document text
  • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160781f1ed7237---85466652073.pdfIn PDF document text
  • http://serextion2006.com/js/upload/files/degurasulavesejukozene.pdfIn PDF document text
  • http://jrjohnsonfamilyreunion.com/clients/0/09/090f04f22b165063c0e57546eb93b169/File/85365429716.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=youth+football+playbook+pdfPDF link annotation
  • 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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