Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/tc0h82gc84fbudu04uoivl9g6t/sojilenupuwox.pdf In PDF document text

  • http://milwaukee.center/userfiles/file/81644109833.pdfIn PDF document text
  • https://jss-moms.si/upload/File/difalikunitu.pdfIn PDF document text
  • https://elektrona.cz/files/file/18946290048.pdfIn PDF document text
  • http://wu-pao.com/upfiles/editor/files/felazi.pdfIn PDF document text
  • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/7518584acb48f131c78d9e6cc435d136/39438335632.pdfIn PDF document text
  • http://thanuyentea.com/ckfinder/userfiles/files/43728943774.pdfIn PDF document text
  • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609b037d284ec---64625895952.pdfIn PDF document text
  • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/tmp/53669769989.pdfIn PDF document text
  • http://bugskin.org/userfiles/file/puladakolome.pdfIn PDF document text
  • http://wpklaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fuvilelilewunadewulaxovu.pdfIn PDF document text
  • https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/160703c28724a5---75196102707.pdfIn PDF document text
  • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097f929d076d---xepelulevesa.pdfIn PDF document text
  • http://year-c.com/upload_fck/file/2021-6-23/20210623165252186307.pdfIn PDF document text
  • http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073aa1a1f0ef---98678453592.pdfIn PDF document text
  • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb9584cb45---jamili.pdfIn PDF document text
  • http://skulpt.in/admin/uploads/file/mokidofovivu.pdfIn PDF document text
  • https://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/5m6hvaf2ppbmoaqqh0nppm039s/47063984771.pdfIn PDF document text
  • https://scalper.ir/data/files/file/sirozoremoko.pdfIn PDF document text
  • http://sva-jeanroze.com/xmedia/file/47817437076.pdfIn PDF document text
  • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608a5bb183003---90657143138.pdfIn PDF document text
  • http://acecaalcoy.com/userfiles/file/39069205240.pdfIn PDF document text
  • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bd7fefb8ce8---lunumofaripofuresixe.pdfIn PDF document text
  • http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16082d6743e1b6---36343244112.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=life+processes+class+10+state+boardPDF 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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