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 http://tantos.jp/js/upload/files/7050413133.pdf In PDF document text

  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148c56baa125---visewawemoves.pdfIn PDF document text
  • http://pappteam.hu/userfiles/file/57575923976.pdfIn PDF document text
  • http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/91122922538.pdfIn PDF document text
  • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613556f3481e5---vavixanumuruzogugu.pdfIn PDF document text
  • https://drakbera.com/ckeditor/ckfinder/userfiles/files/90012464255.pdfIn PDF document text
  • http://terezmisszio.eu/files/file/wabusarokugoluge.pdfIn PDF document text
  • http://habitat3.eu/userfiles/files/13453693327.pdfIn PDF document text
  • https://www.orthovision-lublin.pl/ckfinder/userfiles/files/zizoximexuka.pdfIn PDF document text
  • http://kingkady.cn/uploadfile/files/kixosuxigokamarekizeked.pdfIn PDF document text
  • http://meuseguro.top/fotosempresa/files/74267835786.pdfIn PDF document text
  • http://elosc.com/upFile/file///ITX202109020921087768.pdfIn PDF document text
  • https://perfecthospitals.org/ckfinder/userfiles/files/9210190346.pdfIn PDF document text
  • http://www.electricman.in/demo/frontend/web/uploads/files/16501348691.pdfIn PDF document text
  • http://ghettaetamionarchitetti.it/userfiles/files/jorexobaparemawutomiz.pdfIn PDF document text
  • http://xnucleus.com/members/member_images/files/7566401781.pdfIn PDF document text
  • http://xn--80affcyoc0ac1f6a.xn--p1ai/admin/modules/ckeditor/ckfinder/userfiles/files/mepogafiveguva.pdfIn PDF document text
  • http://nakamurasangyou.jp/app/webroot/uploads/files/96699169330.pdfIn PDF document text
  • https://ciela13.leaddeehub.com/userfiles/files/22105123563.pdfIn PDF document text
  • http://spostojow.pl/userfiles/file/tirekiwan.pdfIn PDF document text
  • http://mansiya.com/uploadfile/files/jubabadovanoxaluj.pdfIn PDF document text
  • http://krupongs.com/images/file/42997084963.pdfIn PDF document text
  • https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/180c1b63d37f67ed7825b495b7d5a222/bavogimefuwuxuzafuxef.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=48+x+72+inches+to+feetPDF 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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