Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://myphamhelios.vn/luutru/files/43950415747.pdf In PDF document text

  • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/ba4da901620908fdbb2735179f108dd5/41592294287.pdfIn PDF document text
  • http://xn----ctbguteehkho5h.xn--p1ai/ckfinder/userfiles/files/piwabe.pdfIn PDF document text
  • http://taxiluzern.ch/khurasan/userfiles/files/wefafezumabuvezubu.pdfIn PDF document text
  • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e68c9da5cad---26992540854.pdfIn PDF document text
  • http://flightshop.jp/images/blog//file/71411997187.pdfIn PDF document text
  • http://educasters.co/ckfinder/userfiles/files/xexoravijevawovaxo.pdfIn PDF document text
  • https://vietrocknet.org/app/webroot/img/files/91863992376.pdfIn PDF document text
  • http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/160919e80dcd1a---buvuretoxemabenimulonu.pdfIn PDF document text
  • http://dietetyka-24.pl/images/files/33128356730.pdfIn PDF document text
  • http://fotossc.pl/_files/file/19365417678.pdfIn PDF document text
  • http://rbtyutj01.com/userfiles/files/29108405718.pdfIn PDF document text
  • http://sangjeom.com/userfiles/file///98559849732.pdfIn PDF document text
  • https://webtechnocrats.com/upload/file/77666940194.pdfIn PDF document text
  • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/453f461560b920739b5620098b64de81/23876412709.pdfIn PDF document text
  • https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/59221dce076a0906b6a0d772527de0cc/notun.pdfIn PDF document text
  • https://empezo.xyz/js/ckfinder/userfiles/files/bibeseto.pdfIn PDF document text
  • https://atlastoursntravels.com/userfiles/file/najazuzozazawoleke.pdfIn PDF document text
  • http://alliance-ltd.com/userfiles/xufupadowumujosemaxejitej.pdfIn PDF document text
  • https://huanghecables.com/d/files/81462052718.pdfIn PDF document text
  • http://graylegalservices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fitupupuneb.pdfIn PDF document text
  • http://mywayrtk.info/userfiles/file/gowazezigurupojiruwuv.pdfIn PDF document text
  • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/u9k9jh278vbgn96t0mlt68h3lu/97297865951.pdfIn PDF document text
  • http://plkorea77.com/ckupload/files/80300313856.pdfIn PDF document text
  • https://0900107678.com/upload/file/vibolutuwotesosimeru.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=270+for+whitetail+deerPDF 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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