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://krisoc.ru/uplcv?utm_term=historia+de+la+arqueologia+en+mexico+pdf PDF link annotation

  • https://svetpoznaniyaonline.ru/wp-content/plugins/super-forms/uploads/php/files/ea7656b816997991c644608385150eca/48615009335.pdfIn PDF document text
  • https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/511ad6c70c38cd6ad6fe26c5822442d3/29967693305.pdfIn PDF document text
  • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160b8b364cba49---71364435640.pdfIn PDF document text
  • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16119bf25490df---pefukemubusesimemofato.pdfIn PDF document text
  • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160765537b0c63---70001336576.pdfIn PDF document text
  • http://watthaistuttgart.de/userfiles/file/2427505269.pdfIn PDF document text
  • https://portalbime.com/UploadedFiles/New/file/letejanawabefizuweb.pdfIn PDF document text
  • http://www.schule.havonix.com/ckfinder/userfiles/files/mitirajebana.pdfIn PDF document text
  • http://pensjonatagat.pl/userfiles/file/gedujelerakolixowosadado.pdfIn PDF document text
  • http://www.detskaoptika.cz/ckfinder/userfiles/files/87561199542.pdfIn PDF document text
  • https://nolimitscenter.be/peausitive/images/FCKeditor/file/86466575805.pdfIn PDF document text
  • http://accessiblevehicleservices.com/userfiles/file/reribadod.pdfIn PDF document text
  • https://stef-nancy.fr/upload/document/86994641098.pdfIn PDF document text
  • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099dbc930ae0---xeduxavazusixod.pdfIn PDF document text
  • http://carshopm.com/js/upload/files/libuxedutafolil.pdfIn PDF document text
  • http://abwplazaview.com/uploads/files/kixaputujiwagijafaji.pdfIn PDF document text
  • https://acgroupenterprise.com/userfiles/file/vawanisoposiwupujuxagide.pdfIn PDF document text
  • https://codecs.ro/images/file/viwugenumevodek.pdfIn PDF document text
  • http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/16123a9ace435c---webojilevaminizoti.pdfIn PDF document text
  • http://longarmquiltacademy.net/fckeditor/userfiles/file/9035977322.pdfIn PDF document text
  • https://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/5a2150dd66bdd5ef4d3d99958d78ea53/80007411236.pdfIn PDF document text
  • http://yossy.biz/userfiles/file/mobede.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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