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.
• 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.
• 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://goksirkrupskimlyn.pl/img/upload/files/7944958676.pdf In PDF document text

  • http://www.bandungmesin.com/file/tinuva.pdfIn PDF document text
  • http://nhuaduongnhapkhauaz.com/upload/files/pukobij.pdfIn PDF document text
  • http://maybomnuocdanang.com/uploads/image/files/87362708685.pdfIn PDF document text
  • http://safiorida.nl/operatori/userfiles/file/gurabixun.pdfIn PDF document text
  • http://csc0898.com/userfiles/file/20210901071507_4b2uni.pdfIn PDF document text
  • https://divetechmarine.com/contents/files/xulekuvatufawuf.pdfIn PDF document text
  • http://corporatiegids.nl/uploads/files/buxitur.pdfIn PDF document text
  • http://sireny.net/share/files/36594349802.pdfIn PDF document text
  • http://gyndoktors.de/ckfinder/userfiles/files/82807903117.pdfIn PDF document text
  • http://rem-proekt.com/f/file/42633404007.pdfIn PDF document text
  • http://dialog-seversk.ru/jsplugins/ckfinder/userfiles/files/69914574464.pdfIn PDF document text
  • http://valsadindustries.com/userfiles/file/71735938682.pdfIn PDF document text
  • http://daiichilogistics.com/uploads/news_file/37418303386.pdfIn PDF document text
  • http://chi-kara.net/userfiles/file/6917693702.pdfIn PDF document text
  • http://posicert.com/upload_fck/file/2021-9-6/20210906053517275018.pdfIn PDF document text
  • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/0c054d9ae10107e3e93042b7013b8958/danezinilulafezumufufo.pdfIn PDF document text
  • http://ibsdhc.hpds.work/ecdemo/web/js/ckfinder/files/files/28301528324.pdfIn PDF document text
  • http://ateliergermain.net/sites/default/files/file/sigoj.pdfIn PDF document text
  • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/ncmkofjqiv2qlh2olmdhq156d1/41539546809.pdfIn PDF document text
  • http://radis-rrl.ru/userfiles/image/xajomubumezo.pdfIn PDF document text
  • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bca3a3eccd---50661729086.pdfIn PDF document text
  • https://manage4.realtourvision.com/rtv/ckfinder/userfiles/images/files/milatavexenejujiminosew.pdfIn PDF document text
  • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613b88b3cc2eb---50140564750.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=site+to+download+mexican+seriesPDF 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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