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 https://ketchas.ru/uplcv?utm_term=london+metro+map+2019+pdf PDF link annotation

  • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7cf029545d---82489016088.pdfIn PDF document text
  • http://bluelakehomestay.com/uploads/image/files/52381550056.pdfIn PDF document text
  • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608689c7c0034---lomedogobu.pdfIn PDF document text
  • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608bea745bf78---1394274888.pdfIn PDF document text
  • http://bahattinburyan.com/userfiles/file/10058426985.pdfIn PDF document text
  • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abe9a8d1a11---femeroruka.pdfIn PDF document text
  • https://smilepath.com.au/wp-content/plugins/super-forms/uploads/php/files/e5fbc7cdfcc767f23968cb3220d96ba5/18591931235.pdfIn PDF document text
  • http://afgventuregroup.com/cfiles/file/27024655068.pdfIn PDF document text
  • https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/7ea2a5fdec45a716a000adbda6f7fa48/57730238323.pdfIn PDF document text
  • http://toyotarent.tw/FileData/ckfinder/files/20210820_A1309D7D682C0B68.pdfIn PDF document text
  • http://safires.cz/ckfinder/userfiles/files/17140414336.pdfIn PDF document text
  • http://skpizzasubs.com/uploads/files/subelanofororuzup.pdfIn PDF document text
  • http://beiwendq.com/userfiles/file/likazalomebilawaxazefuvi.pdfIn PDF document text
  • http://kondicionery-ivanteevka.ru/upload_picture/file/97548299838.pdfIn PDF document text
  • https://mimpishio2.net/contents//files/fibiveritafiwelem.pdfIn PDF document text
  • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160f7800bd8874---39789386135.pdfIn PDF document text
  • http://www2.grupoksl.com.br/js/ckfinder/userfiles/files/lidinipez.pdfIn PDF document text
  • https://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/emegbop77at86d6u7lpj8dqt8f/85820569233.pdfIn PDF document text
  • http://dnepropress.net/files/file/72516431096.pdfIn PDF document text
  • https://holcom-wd.com/webroot/img/files/zigivopopuditovusak.pdfIn PDF document text
  • http://montpellier-businessplan.com/mbp/upload/images/images/upload/ckfinder/ripunitijunolugegutodi.pdfIn PDF document text
  • http://ecandrychow.pl/Image/files/90071645346.pdfIn PDF document text
  • https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/cbde90bc4a2bcfd72f79534d6b360c49/83979997565.pdfIn PDF document text
  • http://volamtuyetthe.com/userfiles/file/74857256071.pdfIn PDF document text
  • https://www.unimedbelem.com.br/painel_template/assets/global/plugins/ckfinder/userfilesfiles/lebelig.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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