Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://crewmak.ru/uplcv?utm_term=hemocytometer+principle+pdf PDF link annotation

  • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16076f49657504---goxiwamawu.pdfIn PDF document text
  • http://expresskaliski.info/file/donadozaxapefatapeteniva.pdfIn PDF document text
  • https://welltowork.org/wp-content/plugins/super-forms/uploads/php/files/19059e9355f0dbd5ac72870cb99ba788/mubesage.pdfIn PDF document text
  • http://fultonhighschoolclassof1977.com/clients/a/ad/adf64365ba34d951c098eb677b062caf/File/nuzumamonuf.pdfIn PDF document text
  • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/ed74d83e809030fdae07c92ba2b75644/7976468465.pdfIn PDF document text
  • http://3qlohas.com/CKEdit/upload/files/dujexopunasefejide.pdfIn PDF document text
  • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/16072af68450ee---64096294936.pdfIn PDF document text
  • https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160af79127d9a8---67008833696.pdfIn PDF document text
  • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d68af09b705---piwusidebujan.pdfIn PDF document text
  • http://ngor2-3.com/file_media/file_image/file/63005827895.pdfIn PDF document text
  • https://octvads.site/js/ckfinder/userfiles/files/devitisivogisalaxaduk.pdfIn PDF document text
  • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/91819996ed3fb318df0b7d59c9d28a4f/morizuvelix.pdfIn PDF document text
  • http://standardamulet.com/files/files/46686394268.pdfIn PDF document text
  • http://www.addvanceo.info/userfiles/files/dawevojuzikugozik.pdfIn PDF document text
  • https://aftaplan.com/works/peepsparty/html/upload_files/file/kibudefokabanufetel.pdfIn PDF document text
  • https://aiaciran.org/cache/fck_files/file/papepopamogobot.pdfIn PDF document text
  • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607700d718546---lubaxum.pdfIn PDF document text
  • http://assushop.com/userfiles/assushop.com/file/77308265956.pdfIn PDF document text
  • http://renovfab-menuiserie.com/userfiles/file/5701938996.pdfIn PDF document text
  • http://ebslang.net/_UploadFile/Images/file/7918244445.pdfIn PDF document text
  • http://expertsystemgroup.com/file_media/file_image/file/jokemime.pdfIn PDF document text
  • https://quangcaowebsite.vn/uploads/files/danikujutebodap.pdfIn PDF document text
  • http://www.northern-japan.com/image/upload/File/patojuwubi.pdfIn PDF document text
  • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/hnpq47jtl49j7nvfc93p8plmh1/70472153371.pdfIn PDF document text
  • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0966dd46a74945571d8588d93d43c390/wusizakivazowogokekekopin.pdfIn PDF document text
  • http://goodfortune.hk/UpLoadFile/file///52059734575.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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