Malicious PDF — malware analysis report

Heuristics 6

• 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://ibb-online.ru/f/file/tinexisafozubikom.pdf In PDF document text

  • http://asbu.net/uploads/FCK_files/file/45660012505.pdfIn PDF document text
  • http://fullcolorspandoeken.nl/userfiles/file/83318578649.pdfIn PDF document text
  • http://abwessex.com/uploads/files/27500084574.pdfIn PDF document text
  • https://alakharia.com/public_html/userfiles/file/62771318014.pdfIn PDF document text
  • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609af8c35417e---guzovomig.pdfIn PDF document text
  • http://konyaozgunmobilya.com/userfiles/file/pidom.pdfIn PDF document text
  • http://oasis-inwaste.asia/files/file/88896337221.pdfIn PDF document text
  • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/16118f788c0339---detofilozevikijuz.pdfIn PDF document text
  • https://zippy-inc.com/app/webroot/userfiles/files/nupekalinur.pdfIn PDF document text
  • http://albarossa.jp/js/upload/files/ronagegaleziliw.pdfIn PDF document text
  • https://www.latentoac.com/portal/wp-content/plugins/super-forms/uploads/php/files/tgohptou2ks8b1ob1guoruqt7t/79347667318.pdfIn PDF document text
  • http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/160a6cdcac0c81---vizag.pdfIn PDF document text
  • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1ddd58e00---piserogebuwutonunotenoto.pdfIn PDF document text
  • http://caycanhtuyhien.com/uploads/image/files/batanugitozigumatepu.pdfIn PDF document text
  • https://aviseco.ro/userfiles/file/tufiriw.pdfIn PDF document text
  • http://globaltruthmediagroup.com/clients/a/aa/aa8380eac451876ae6ab993bf3a720d6/File/63014884088.pdfIn PDF document text
  • https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/d51fc1101fe2d34e87480a62c5c28b0f/7563770451.pdfIn PDF document text
  • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160caa67611ec1---72091748751.pdfIn PDF document text
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608537e88c7e7---41896581562.pdfIn PDF document text
  • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/46df2f4123b3ba7d9ef111edb936be60/50612680204.pdfIn PDF document text
  • https://louvre.lv/res/wysiwyg/file/wuzodewinukopijopuradow.pdfIn PDF document text
  • https://isleo.com/i_photos/file/93513160411.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b59abf91424---rorivibenemov.pdfIn PDF document text
  • https://agatanorek.com/files/file/lumuponuziwurekeliv.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=sample+letter+for+quotation+submissionPDF 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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