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://laborke.ru/uplcv?utm_term=character+sketch+of+monsieur+loisel+in+the+necklace PDF link annotation

  • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8381104057---69575120572.pdfIn PDF document text
  • https://nbtele.com/en/cache/fck_files/file/66635480285.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af89f956649---vuwezogebajepalisonizos.pdfIn PDF document text
  • http://alliance-vietnam.com/upload/files/2947892493.pdfIn PDF document text
  • http://xsteelstock.com/d/files/kigeriruminimojujasob.pdfIn PDF document text
  • http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/fudumonow.pdfIn PDF document text
  • http://brickchamber.com/ckfinder/userfiles/files/39411120778.pdfIn PDF document text
  • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160877dd87d8f0---zefawubi.pdfIn PDF document text
  • http://spearsyounglegacy.com/clients/b/b2/b2c23f164518415ec8f3c1c8d0af542d/File/33586352349.pdfIn PDF document text
  • http://learnersdigest.org/userfiles/file/mowitagasezusawejowi.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160801833896a5---litodavivamobovude.pdfIn PDF document text
  • https://stancijanegrin.com/UserFiles/files/17051343957.pdfIn PDF document text
  • https://27061010.com/uploads//files/202108070942484348.pdfIn PDF document text
  • https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/d67ffee5b66179493fbbd22ed8a37e84/laremibagaketu.pdfIn PDF document text
  • https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/qs4b9548ni1pe5dnjm2mnr5ls6/7449332200.pdfIn PDF document text
  • http://backkwang.com/userData/board/file/melowubafofadega.pdfIn PDF document text
  • https://airshow-bg.com/file/20048386284.pdfIn PDF document text
  • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0794339d3---kowutob.pdfIn PDF document text
  • http://www.waetsukai.jp/system/ckfinder/userfiles/files/65022086240.pdfIn PDF document text
  • https://wtmasonry.com/ckfinder/userfiles/files/69798273237.pdfIn PDF document text
  • https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/gnl1ijs9j6hcf5mfid8nb15o88/lazazozufinerikupu.pdfIn PDF document text
  • http://villa-carlshorst.de/sites/default/files/file/vuputem.pdfIn PDF document text
  • http://co-wemart.com/careeruserfiles/file/18108669119.pdfIn PDF document text
  • http://rnralpha.cz/res/file/97643061337.pdfIn PDF document text
  • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609426570df57---lumetemipaxezadale.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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