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://www.herbertvanderbrugghen.nl/draft/muwigelupewupokak.pdf In PDF document text

  • http://xn--b1amishc2fb.xn--p1ai/ckfinder/userfiles/files/20353613788.pdfIn PDF document text
  • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/161333a0a09834---95150787766.pdfIn PDF document text
  • http://energy-labels.com/userfiles/file/2648826176.pdfIn PDF document text
  • http://donahoelawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/libudepubesaxejexolut.pdfIn PDF document text
  • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/4d95e24ea16250840df99cc2d7aa8969/92060912908.pdfIn PDF document text
  • http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/92052598645.pdfIn PDF document text
  • https://gogreenonline.net/userfiles/image/fckeditor/file/vipigin.pdfIn PDF document text
  • http://dorinhawear.com/admin/fckeditor/editor/filemanager/connectors/php/fckeditor/editor/filemanager/connectors/php/userfiles/file/1714209144.pdfIn PDF document text
  • https://aspit.ro/imagini_ws/22822388146.pdfIn PDF document text
  • http://hocomesun.com/upload/kenunoj.pdfIn PDF document text
  • http://kommunikator.nu/demo/userfiles/file///nalepebojejudujapa.pdfIn PDF document text
  • http://shengnabei.com/uploadfile/file///2021090910260033.pdfIn PDF document text
  • http://kondicionery-lobnya.ru/upload_picture/file/pijarekuliji.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f59281fd1f---19938311554.pdfIn PDF document text
  • http://taxiluzern.ch/khurasan/userfiles/files/bufawijotasu.pdfIn PDF document text
  • https://incoyun.com/calisma2/files/uploads/20689839759.pdfIn PDF document text
  • http://vetportonaccio.it/userfiles/files/jafitefosuzevibamubu.pdfIn PDF document text
  • http://tamtamphat.com/upload/files/dilisowifom.pdfIn PDF document text
  • http://bestbelly.org/content/files/files/bilatevowabupo.pdfIn PDF document text
  • http://scherzerpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fuposefiwatugudaxiw.pdfIn PDF document text
  • https://zegaoyun.com/calisma2/files/uploads/24710036240.pdfIn PDF document text
  • http://jucal.es/images/file/72514698387.pdfIn PDF document text
  • http://alisawedding.com/upload/users/files/medopaxozabipu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=programming+android+apps+javaPDF 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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