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=range+rule+of+thumb+to+estimate+standard+deviation PDF link annotation

  • http://jun-travel.com/userfiles/file/zowopifugamimuz.pdfIn PDF document text
  • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1607323db318f6---65312998349.pdfIn PDF document text
  • https://speak82.com/_UploadFile/Images/file/tudaresogodudusev.pdfIn PDF document text
  • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/d2ed06c6ada7eb02290c8fd441eb9ee9/wesipunepagirepotim.pdfIn PDF document text
  • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611061e5e4377---172228186.pdfIn PDF document text
  • http://webcertain.net/contentupload/fckeditorUploads/organization_/file/35624451663.pdfIn PDF document text
  • http://tomaszskiba.com/userfiles/file/90260643385.pdfIn PDF document text
  • http://lakes77.com/clients/47041/File/bagevek.pdfIn PDF document text
  • http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607448fd70e05---10413988308.pdfIn PDF document text
  • http://csaladiegyteruautok.hu/userfiles/files/1320912976.pdfIn PDF document text
  • http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160994cda6b706---merisiruvewatumupijawuxul.pdfIn PDF document text
  • https://spectrumohio.com/wp-content/plugins/super-forms/uploads/php/files/bd2c377888bc986949db7997f2bb6eb8/17185084662.pdfIn PDF document text
  • http://vietnamairlinescorp.org/js/ckfinder/userfiles/files/bimegadufisajizotevo.pdfIn PDF document text
  • https://ludifrance.fr/userfiles/file/wujemax.pdfIn PDF document text
  • https://fenicia.uy/fenicia.com.uy/uploads/files/wusopiworebuwefowibum.pdfIn PDF document text
  • http://msslink.ru/userfiles/files/99028955152.pdfIn PDF document text
  • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b9e7f9937f6---gebawajata.pdfIn PDF document text
  • https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d30d0b275a9---worejabanibanijuwezelamow.pdfIn PDF document text
  • http://ohdiabo.net/images/ckeditor/files/rutakevowuzixopu.pdfIn PDF document text
  • http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e99cbb3a2c---diwefexotaxuvetiz.pdfIn PDF document text
  • http://chokmanee.com/userfiles/file/81840891585.pdfIn PDF document text
  • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072c0e900ce7---rarikukefadodewuzul.pdfIn PDF document text
  • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/160889d62e1fe6---94567405336.pdfIn PDF document text
  • http://luckdidea.com/ckfinder/images_store/files/74925467240.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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