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://oilmachineydy.com/d/files/61412107253.pdf In PDF document text

  • https://huaku3c.tw/uploads/files/202109081756379895.pdfIn PDF document text
  • http://wuxihemei.com/ckfinder/userfiles/files/20210907_115630.pdfIn PDF document text
  • http://mathrainbow.com/userfiles/file/61028198600.pdfIn PDF document text
  • http://brukbet.com/user_images/file/78065729945.pdfIn PDF document text
  • https://escaletravel.com/userfiles/files/xijiv.pdfIn PDF document text
  • http://ecofincas.net/ckfinder/userfiles/files/99891916808.pdfIn PDF document text
  • http://tiszaladany.hu/upload/file/48862815693.pdfIn PDF document text
  • http://net-marketing.hu/images/files/9292904968.pdfIn PDF document text
  • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16138b94d7e206---fuveritonogit.pdfIn PDF document text
  • https://mbzgogo.xyz/web/img/podborky/files/bunotezaviretibu.pdfIn PDF document text
  • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ef9353b2ba---xunuzopen.pdfIn PDF document text
  • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161393f163de7f---40249596266.pdfIn PDF document text
  • https://ssekolkata.com/ckfinder/userfiles/files/96675705337.pdfIn PDF document text
  • https://mfdesign.hu/files/file/kutixamab.pdfIn PDF document text
  • http://zajazd-broadway.pl/galeria/file/pomokunogib.pdfIn PDF document text
  • http://dorrstrechy.cz/UserFiles/File/zowugegamexukunonuxideme.pdfIn PDF document text
  • http://richmore.kr/uploadfile/fckeditor/file/93556160303.pdfIn PDF document text
  • https://brazilairporttransfers.com/ckfinder/userfiles/files/18078830554.pdfIn PDF document text
  • https://lapakunited.com/contents/files/ridajafepiwaxodo.pdfIn PDF document text
  • https://erdenet.mn/userfiles/file/toborelawazobizumavu.pdfIn PDF document text
  • http://yingtailong.com/upload/file/2109010720197119942jssgssu1p4t.pdfIn PDF document text
  • http://bobhendrix-law.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/45814039904.pdfIn PDF document text
  • http://sk-massimo.com/js/upload/files/risugotuzeroxobubozonej.pdfIn PDF document text
  • https://lee-trading.tw/archive/upload/files/jowesamosulolatekura.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=words+that+start+with+a+silent+letterPDF link annotation
  • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bc5b7ee73f---31545819344.pdfIn PDF document text
  • 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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