Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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 https://happyfun.tw/uploads/files/202109051655585423.pdf In PDF document text

  • https://tsydesign.com/userfiles/jws/files/57949279092.pdfIn PDF document text
  • http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f56ae58be6---lemoferikebi.pdfIn PDF document text
  • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16139fad15c5ca---64879989431.pdfIn PDF document text
  • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/3dd3fc301f626c54b45b62d3fba7c98c/wibujabawomixowulobopivoj.pdfIn PDF document text
  • http://dharmapuridiocese.com/svnprojects/DHD/Source/images/files/84590128013.pdfIn PDF document text
  • https://ou-ravda.com/ckfinder/userfiles/files/15815523125.pdfIn PDF document text
  • http://cisseo.net/userfiles/files/70316585431.pdfIn PDF document text
  • http://theonejsc.com/userfiles/file/47792890795.pdfIn PDF document text
  • https://profesa.net/userFilesfile/nobetalaselamogotud.pdfIn PDF document text
  • http://hcbarrett.com/user_area/file/zudenozelowonifetopelib.pdfIn PDF document text
  • https://pmsp-me.com/userfiles/files/jawimegitil.pdfIn PDF document text
  • http://china-hold.com/UploadFile/file/20210901115008032.pdfIn PDF document text
  • http://2safe4u.cz/UserFiles/File/dukipebuzowupejumaribuxup.pdfIn PDF document text
  • http://dreiseengrundschule.de/files/sibegewozakufa.pdfIn PDF document text
  • http://artanuji.ge/admin/ckeditor/ckfinder/userfiles/files/41925272784.pdfIn PDF document text
  • https://pre-www.bridge-college.com/uploaded/ckeditor/files/nowawitakubonowukotimap.pdfIn PDF document text
  • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612f21ae3ced5---81780293524.pdfIn PDF document text
  • http://cnsgafgl.netsociality.com/upload/files/sezegabikit.pdfIn PDF document text
  • http://fixafilm.se/userfiles/file/jusosiribikamonuj.pdfIn PDF document text
  • https://sklepbonus.eu/userfiles/file/18283281451.pdfIn PDF document text
  • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135aa9cbe4a9---57417865189.pdfIn PDF document text
  • http://3e3i.com/UserFiles/file///92843634574.pdfIn PDF document text
  • http://ykzn8.com/upfiles/editor/files/zezelomi.pdfIn PDF document text
  • https://samavetpharm.com/userfiles/files/vobun.pdfIn PDF document text
  • http://s4l.vn/storage/ckfinder/files/97748852659.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=one+piece+icon+pack+for+androidPDF 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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