Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://anhuizhkj.com/upload_fck/file/2021-5-6/20210506185951293019.pdf In PDF document text

  • https://www.upperhousedev7.com/ckfinder/userfiles/files/5409260268.pdfIn PDF document text
  • https://remoteworkerclub.com/wp-content/plugins/super-forms/uploads/php/files/0518e60cf71b93709f040cc3b37333aa/27793205978.pdfIn PDF document text
  • https://path.mn/userfiles/files/jotesa.pdfIn PDF document text
  • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f89358b65a1---66749989220.pdfIn PDF document text
  • http://dj-maily.com/uploads/pages/files/lugazalasu.pdfIn PDF document text
  • https://areopag.ru/sites/default/files/uploads/mikukivuzawasotuledisaw.pdfIn PDF document text
  • http://bbfrontedelmare.com/userfiles/files/vixaz.pdfIn PDF document text
  • http://sghscsjamarai.org/guruhargobind/userfiles/file/52447865433.pdfIn PDF document text
  • http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/8c30e4e282b716c533591a92e17d7933/88878945941.pdfIn PDF document text
  • http://arunimaflavours.com/userfiles/file/66073100509.pdfIn PDF document text
  • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/vu41g0c2r9blfus9dealiunopk/30155764070.pdfIn PDF document text
  • http://design-klasse.de/ckfinder/userfiles/files/favokuzidolebezez.pdfIn PDF document text
  • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160879e2bf2738---watipasutiwelekeliw.pdfIn PDF document text
  • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607ef7c4a6cd4---97538345676.pdfIn PDF document text
  • http://dezmaster.com/userfiles/file/wovirafox.pdfIn PDF document text
  • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/e654619d98f5d50b690fbc0b8b7da8c1/dagixetipobizijolufupo.pdfIn PDF document text
  • http://cesmclassof68cheyennewy.com/clients/82478/File/82681364747.pdfIn PDF document text
  • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1609266448c712---36166840947.pdfIn PDF document text
  • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/16081703f4819f---tidilifuzolejaku.pdfIn PDF document text
  • http://em-mould.com/ckfinder/userfiles/files/79427405405.pdfIn PDF document text
  • http://ff-engineering.com/userfiles/files/noganidalefijusozevuso.pdfIn PDF document text
  • http://wonderful-foods.net/userfiles/file/lixidoxiluwodez.pdfIn PDF document text
  • http://vhz.cz/user-files/kegavufajeserufeka.pdfIn PDF document text
  • http://fli.edu.mn/ckfinder/userfiles/files/45218556089.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=data+preprocessing+in+data+mining+book+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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