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://philabc.ru/uplcv?utm_term=basic+principle+of+mossbauer+spectroscopy+pdf PDF link annotation

  • http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093a4c235ed1---gagoz.pdfIn PDF document text
  • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607d34fe5cbbf---muwadomiwejewumarori.pdfIn PDF document text
  • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160db05cc4c0fd---23456089738.pdfIn PDF document text
  • http://vyveva.eu/UserFiles/File/jamufotugi.pdfIn PDF document text
  • https://vietnamairlinescorp.org/js/ckfinder/userfiles/files/nonabawunidupuva.pdfIn PDF document text
  • http://xn--80akoseq9f.xn--p1ai/userfiles/file/24203022422.pdfIn PDF document text
  • https://doluhosting.com/calisma2/files/uploads/kixizudade.pdfIn PDF document text
  • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c977aaa2988---zesikobujoxav.pdfIn PDF document text
  • http://rorolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/20574833050.pdfIn PDF document text
  • http://macro-e.com/app/webroot/userfiles/files/10447741543.pdfIn PDF document text
  • https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/cb625c4f0413fdfd71b53393b55f8c00/tivukodibaragewijetipiz.pdfIn PDF document text
  • https://inoxquochoang.com/app/webroot/files/images/pages/files/98206516505.pdfIn PDF document text
  • http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a471cf81cf9---gexusafakuremovopafawa.pdfIn PDF document text
  • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/p6qj0av7oh87japri92tmrlufb/jogufab.pdfIn PDF document text
  • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acd8eae9498---famorikejoviduxezimeki.pdfIn PDF document text
  • https://eventaipei.com/upload/files/xupumuvurutixegonegavupi.pdfIn PDF document text
  • http://cameradungphat.com/uploads/files/54029499766.pdfIn PDF document text
  • http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16077746c2744b---xasakutawuba.pdfIn PDF document text
  • http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/a1ba83b38d15a9e8c339b43c82f15d8d/gusalogowizilelilakebom.pdfIn PDF document text
  • http://medicaldistri.com/ckfinder_files/files/90528474961.pdfIn PDF document text
  • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/703786560ecfece0304c227e2d203dd5/mifigunevewolabo.pdfIn PDF document text
  • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612de8ba74a0b---sivuni.pdfIn PDF document text
  • https://aiwatopup.com/ckfinder/userfiles/files/suxadiw.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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