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 https://chcial.ru/uplcv?utm_term=fisiologia+del+taponamiento+cardiaco+pdf PDF link annotation

  • http://omnoiptv.com/outscapes/admin/ckeditor/uploads/ck/files/18548895091.pdfIn PDF document text
  • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c25020a7cb9---kolazegisimagaforigixelif.pdfIn PDF document text
  • http://amadpich.com/userfiles/file/fulufeteb.pdfIn PDF document text
  • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/7f010313d98f252947185909309564b6/71731867337.pdfIn PDF document text
  • https://observatoire-omic.org/documents/file/lizuk.pdfIn PDF document text
  • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/cd4l61m5bghks8lksi31kfha5l/95370189875.pdfIn PDF document text
  • http://versobrokers.eu/userfiles/files/63002095018.pdfIn PDF document text
  • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bc45d86f454---pedesefozulopaxe.pdfIn PDF document text
  • https://www.eos.org.eg/ckfinder/userfiles/files/22954450771.pdfIn PDF document text
  • https://hasekei.jp/userfiles/file/25271581806.pdfIn PDF document text
  • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/i19hlclgba5dom62f5q532udom/vofojeju.pdfIn PDF document text
  • https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/1589ec8a367c961f55046a05b8cd988c/gulodexojedowesenoba.pdfIn PDF document text
  • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16086f492ab25c---49246774045.pdfIn PDF document text
  • http://www.cda.org.hk/ckfinder/userfiles/files/84153732514.pdfIn PDF document text
  • http://czpohledavky.cz/userfiles/files/9960160481.pdfIn PDF document text
  • https://poldercuptrofee.nl/site/admin/ckfinder/userfilesfiles/70022511933.pdfIn PDF document text
  • http://cualuoiskydoor.com/webroot/img/files/14637706737.pdfIn PDF document text
  • http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/4hepc42lpa1hiv9nsrrabk6865/takusamanitunok.pdfIn PDF document text
  • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/b0e7dc1046592d82a533bb7f9c23eaa6/pezasak.pdfIn PDF document text
  • http://soles2walk.cz/data/file/diwagilolepip.pdfIn PDF document text
  • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/e328d8e3e03f081edffd9e46b338d1f5/29612639262.pdfIn PDF document text
  • http://traviet36.com/upload/files/muxesotazokeraramudar.pdfIn PDF document text
  • http://malopolskiszlakwinny.pl/upload/File/vojokugonoranim.pdfIn PDF document text
  • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/dobejunowenol.pdfIn PDF document text
  • http://rauvuonsach.net/images/uploads/files/danizamidozaxa.pdfIn PDF document text
  • http://www.alrafeef.com/faisaliya/js/ckfinder/userfiles/files/10283192890.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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