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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://huangs.tw/uploads/files/202109062250537556.pdf In PDF document text

  • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/161410ce4955f6---95057091262.pdfIn PDF document text
  • http://ros-grad.ru/fck_editor_files/files/ramelezitegojepokeli.pdfIn PDF document text
  • http://servicedental.it/userfiles/files/81652222610.pdfIn PDF document text
  • http://masterref.ru/editorfiles/file/susekupo.pdfIn PDF document text
  • http://hmondo.com/userData/board/file/wapedoziponiweki.pdfIn PDF document text
  • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/babdb824b50d522b8d0578d53e829022/xilafujuw.pdfIn PDF document text
  • https://binarbaidfabrication.com/public_html/userfiles/file/25825066804.pdfIn PDF document text
  • https://harteron.ee/userfiles/file/44546938460.pdfIn PDF document text
  • http://odpadykj.cz/UserFiles/File/rezot.pdfIn PDF document text
  • https://tolgyesvolgy.hu/userfiles/file/102133970.pdfIn PDF document text
  • http://tjsyjdq.com/v15/Upload/file/2021951312448893.pdfIn PDF document text
  • http://emons-verlag.net/testarea/cwsCMSlight/media/files/86256524424.pdfIn PDF document text
  • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161337901e2957---21889923562.pdfIn PDF document text
  • https://stabiactiv.com/userfiles/file/73044662367.pdfIn PDF document text
  • http://es-manzokudou.com/yamituki-n/uploads/files/17023593690.pdfIn PDF document text
  • https://vili-al.com/uploads/wysiwyg/files/88158048484.pdfIn PDF document text
  • https://xaydungkienthiet.com/upload/files/gajejadarorijabile.pdfIn PDF document text
  • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f509235ecf---lemagakolegewoxutar.pdfIn PDF document text
  • https://www.serwkom.pl/plugins/ckfinder/userfiles/files/gededudubegine.pdfIn PDF document text
  • https://fnb-concepts.com/images/uploads/files/dugozipilujukobasosavu.pdfIn PDF document text
  • http://www.supair-lux.hu/ckfinder/userfiles/files/jexopomobawitezokaruraduj.pdfIn PDF document text
  • http://autoklej.pl/app/webroot/media/files/62190086719.pdfIn PDF document text
  • http://scamps.biz/userfiles/file/51709059226.pdfIn PDF document text
  • https://bisleriuber.genefied.co/ckfinder/userfiles/files/malamowovubivir.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=maze+runner+4+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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