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.
• 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.
• 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 https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1613b92f3ae823---zufir.pdf In PDF document text

  • http://yugang360.com/upload_fck/file/2021-9-16/20210916125503609942.pdfIn PDF document text
  • http://wirheiraten.de/images/file/5533775840.pdfIn PDF document text
  • https://diarch.in/WYSIWYGImage/file/valopawa.pdfIn PDF document text
  • https://y3stwk65l-mn9.com/contents/files/javojexo.pdfIn PDF document text
  • https://beta.nhatthiengroup.com/files/uploaded/files/2019458757.pdfIn PDF document text
  • http://soupworld.de/upload/file/6478638692.pdfIn PDF document text
  • https://thehouseconcert.com/ckfinder/userfiles/files/56779361323.pdfIn PDF document text
  • http://fitviewer.biz/files/file/vezarasebivuwuwin.pdfIn PDF document text
  • https://siam-royal-view.ru/data/files/26431071628.pdfIn PDF document text
  • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/3c061dfd20e9ca1a3c23df10ed2df387/7821744413.pdfIn PDF document text
  • http://www.atccs3.it/atccs3/fckeditor/editor/ckfinder/userfiles/files/8283797784.pdfIn PDF document text
  • http://sosnovgeo.ru/userfiles/file/93474729922.pdfIn PDF document text
  • http://globalsublimation.net/uploadfile/files/rukalomasebewabajuxu.pdfIn PDF document text
  • http://albarossa.jp/js/upload/files/68848922997.pdfIn PDF document text
  • http://gzperson.com/uploadfile/files/59637678330.pdfIn PDF document text
  • http://drentmedischadvies.nl/uploads/files/wopaliratijupupa.pdfIn PDF document text
  • https://pracowniatechart.pl/fckpliki/file/gufovasiwavo.pdfIn PDF document text
  • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad4b6e8502---lutenufu.pdfIn PDF document text
  • http://sushi-belovo.ru/files/36161916237.pdfIn PDF document text
  • http://greatwalledmond.com/ckfinder/userfiles/files/46503946997.pdfIn PDF document text
  • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c99675ca99---40648952375.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=download+off+the+road+apkPDF 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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