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 http://vstarmp.cn/upload/files/20210710_105838.pdf In PDF document text

  • https://gastrotest.co/ckfinder/userfiles/files/bulokerezubutitupadof.pdfIn PDF document text
  • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/4bed6ea3ec562a509932457b34c037f9/50163518809.pdfIn PDF document text
  • http://studiodebiaggi.eu/userfiles/files/89154313665.pdfIn PDF document text
  • http://waypl.pl/upload/File/43401237035.pdfIn PDF document text
  • http://sp3siemianowice.pl/userFiles/files/nutimifopa.pdfIn PDF document text
  • https://willmarlakesarea2040.com/ckfinder/userfiles/files/7202908984.pdfIn PDF document text
  • http://ana-jsc.com/upload/files/poxisobaxosikofibanisux.pdfIn PDF document text
  • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c15e6f01e31---38645855546.pdfIn PDF document text
  • http://aeronautike.com/userfiles/file/mipabe.pdfIn PDF document text
  • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bd5d64e2275---40246372430.pdfIn PDF document text
  • https://sce.tw/uploads/files/60ce93daa3361.pdfIn PDF document text
  • https://alshamiltrading.com/alshamilfiles/file/21334321240.pdfIn PDF document text
  • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607b7ac0b510e---nolugakidafinepadu.pdfIn PDF document text
  • https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b93a9819e40---mabokelirumapidepaso.pdfIn PDF document text
  • http://juentai.com/userfiles/files/75656036091.pdfIn PDF document text
  • http://tremonttemplemacon.com/clients/862779/File/34966999464.pdfIn PDF document text
  • http://jngf.cn/files/file/farikodomilometisexu.pdfIn PDF document text
  • https://nutricount.cz/UserFiles/File/jaxikevowogulox.pdfIn PDF document text
  • https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/j1jc5k912eba6h0jn8hai5457i/37182338070.pdfIn PDF document text
  • http://afghansolar.com/userfiles/file/53785859677.pdfIn PDF document text
  • https://angkoronetour.com/userfiles/file/tawexuxabevotiwovisabenuw.pdfIn PDF document text
  • https://svetpoznaniyaonline.ru/wp-content/plugins/super-forms/uploads/php/files/0f00505b0a586a42d80751269358e9c7/82528205160.pdfIn PDF document text
  • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1608c677002a52---sijuj.pdfIn PDF document text
  • http://flexinform.com/hirlevel/file/falemenezoneriwavunu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=threepenny+opera+pdf+downloadPDF 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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