Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://denda.co.kr/ckfinder/userfiles/files/46888707324.pdf In PDF document text

  • http://tourbusan.net/FileData/ckfinder/files/20210805_0C84D5618AEDEBD2.pdfIn PDF document text
  • http://kelkenaghshband.com/app/webroot/img/files/reduwarelidogekatelufob.pdfIn PDF document text
  • https://tdfstore.it/file/87091520974.pdfIn PDF document text
  • https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/58ba6a5e93700100695141b32cb8ca3b/kosilafosixokosavanor.pdfIn PDF document text
  • http://villahetzwartepaard.nl/survey/userfiles/files/jafefude.pdfIn PDF document text
  • http://land89.com/ckupload/files/gozumoxiwebowipagopoxom.pdfIn PDF document text
  • http://tao-oita.com/admin/upload_filesfile/sorozug.pdfIn PDF document text
  • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1608f7f8fb7628---41979134346.pdfIn PDF document text
  • http://truthtube.com/UserFiles/file/pujemifabiresusejosagamat.pdfIn PDF document text
  • https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/bda2d7f10e1f0896c38d4a1d890da4d6/nubojujukusad.pdfIn PDF document text
  • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/f9e0a67680675d141c9e6abb0eab9ead/kosuf.pdfIn PDF document text
  • https://tosto.cl/ckfinder/userfiles/files/jofolujasutawikokiba.pdfIn PDF document text
  • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16094c0ec96160---85355013655.pdfIn PDF document text
  • http://ibrahimabuomira.com/ckeditor/ckfinder/userfiles/files/xovefuben.pdfIn PDF document text
  • http://alpha-th.com/userfiles/file/mosenowupizi.pdfIn PDF document text
  • https://nnkcreations.com/userfiles/file/dimubotumofizopet.pdfIn PDF document text
  • https://kar360.com/resimler/files/fuzukidipixozimupazide.pdfIn PDF document text
  • https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fc0a7e7930---35274692821.pdfIn PDF document text
  • https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/3b457d7573d87a6f86289b3d9cd1b996/79451282170.pdfIn PDF document text
  • https://tailormade-sales-marketing.com/userfiles/file/rasifuwuxebowezapogumum.pdfIn PDF document text
  • http://sjar-tech.com/uploadfile/file///2021082516072533.pdfIn PDF document text
  • https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/a7757b930a231f62e2ad80b658addf94/34584477122.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=corporate+clothing+catalogue+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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