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://archism.ru/uplcv?utm_term=disadvantages+of+quantitative+research+pdf PDF link annotation

  • http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a71c20daae5---nafuvifisebezifalupok.pdfIn PDF document text
  • https://laatjehuisweerstralen.nl/upload/file/23333169031.pdfIn PDF document text
  • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/161148c6e92462---84629117716.pdfIn PDF document text
  • http://titibbs.xyz/js/ckfinder/userfiles/files/9092233983.pdfIn PDF document text
  • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a99d7151824---gujikunav.pdfIn PDF document text
  • https://wecareu.net/ckfinder/userfiles/files/mapitazebob.pdfIn PDF document text
  • https://uleshuzataruhaz.hu/files/file/xozenu.pdfIn PDF document text
  • http://vinhthuan.vn/upload/files/8163329548.pdfIn PDF document text
  • http://investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/22199353761.pdfIn PDF document text
  • https://aspirans.com/files/file/dunomurek.pdfIn PDF document text
  • https://saglamahsapkutu.com/img/editor/image/file/43144520905.pdfIn PDF document text
  • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/dkqea1iu58bsufgg9ibv2i5m7p/getupiwigulatoxipelopibup.pdfIn PDF document text
  • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/161153c4c1a4a6---rijovarabikupavave.pdfIn PDF document text
  • https://condominiobrisasdelnorte.com/userfiles/file/47350316912.pdfIn PDF document text
  • http://abpaluso.com/upload/file/47200737807.pdfIn PDF document text
  • http://dallassymphonyleague.com/clients/1/14/14bb4a025281f1a32078cb68571f7cf3/File/22566406066.pdfIn PDF document text
  • https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/dfhop740msm42o64umma0tj9p7/kidubovoses.pdfIn PDF document text
  • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c60ce9eb3d0---wekomok.pdfIn PDF document text
  • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160e45387353bd---vigaduseban.pdfIn PDF document text
  • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/edb82a9954a34052db9e73a182400cd9/xidijafetabawevelevuvejuw.pdfIn PDF document text
  • https://blugarden.eu/file/74842822830.pdfIn PDF document text
  • http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/27613662871.pdfIn PDF document text
  • https://bhsbeacon.com/FCKeditor/file/nakugerofejof.pdfIn PDF document text
  • https://grandhotelbulgaria.com/userfiles/file/kejilisebozu.pdfIn PDF document text
  • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/dnnsrtnhbs2crj6p3jr3thd6d2/71065209572.pdfIn PDF document text
  • https://adikkedua.com/contents//files/fetujorozevamolewiruri.pdfIn PDF document text
  • http://centromp.it/userfiles/files/fewugefikibosabonejatu.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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