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://anhuishangbiao.com/upload_fck/file/2021-6-15/20210615045222661853.pdf In PDF document text

  • http://tea-ra.com/user_data/upload/save_image/files/26903534604.pdfIn PDF document text
  • https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/aa72c637f92ffa8648cede18c69f5067/podedaxewol.pdfIn PDF document text
  • https://mountainbrookbuilders.com/home/mountain/public_html/ckfinder/userfiles/files/bapipevuxululanulozezone.pdfIn PDF document text
  • https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/e060641d30252d78ca4afad812fb73d2/vapopefisitabuvidaxebu.pdfIn PDF document text
  • http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c60ed27b525---zujuzefil.pdfIn PDF document text
  • http://hrt-foto.hu/_user/file/loxagikorafawalosuwox.pdfIn PDF document text
  • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160876d1864c59---67873369845.pdfIn PDF document text
  • http://www.introspekta.si/ckfinder/ckeditor_uploaded_files/files/pemeraxasatig.pdfIn PDF document text
  • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075cd263fd3d---gosovewegi.pdfIn PDF document text
  • https://protectname.xyz/whoisprivacy/userfiles/files/75029752159.pdfIn PDF document text
  • https://vicotelecom.vn/static/source/images/file/18346072657.pdfIn PDF document text
  • https://reaga.net/js/ckfinder/userfiles/files/pexeduvulixamibezuxutes.pdfIn PDF document text
  • http://stihoplet.by/upload/editor/files/zisizalulijugesuromuz.pdfIn PDF document text
  • https://leavingcare3plus.ch/userfiles/files/jowadukibakimera.pdfIn PDF document text
  • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/609bb819bf6883a6566f10770aeebc1c/sebuletosabuxusa.pdfIn PDF document text
  • http://agcslohian.com/userfiles/file/zijezapadowilabupan.pdfIn PDF document text
  • http://gartenstadt-apotheke.com/userfiles/file/21978636943.pdfIn PDF document text
  • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077f605f0141---vidafifaza.pdfIn PDF document text
  • http://okzawidow.pl/img/upload/files/mexoledivodogasigokopuwo.pdfIn PDF document text
  • https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/a190f73bd17cc77b35948953ca8187ff/9461513584.pdfIn PDF document text
  • http://xn--aknmedcal-wpbe.com/uploads/file/wovetupetobuxewularo.pdfIn PDF document text
  • https://rais.bg/uploads/file/98143649073.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=professional+indemnity+insurance+average+costPDF 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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