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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://archism.ru/uplcv?utm_term=official+guide+for+gmat+review+2017+pdf+free+download PDF link annotation

  • https://familienbilstrup.dk/ckfinder/userfiles/files/xazemafujo.pdfIn PDF document text
  • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/62bac564348079d14874f4611a735ef8/28551959031.pdfIn PDF document text
  • http://enjoyisagenix.com/ckfinder/userfiles/files/kitiz.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608675c7b277d---96163275366.pdfIn PDF document text
  • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/3d2dc4c8bbf927d2728036426c74d489/rinunin.pdfIn PDF document text
  • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609600bf62e4d---38320288336.pdfIn PDF document text
  • https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1610c590685028---81972777549.pdfIn PDF document text
  • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160bdc186f2f6a---zonutazudibefelef.pdfIn PDF document text
  • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/161309dc134525---86042813217.pdfIn PDF document text
  • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/v0il9td05a5ueva8bmjlspi7o3/junumepususase.pdfIn PDF document text
  • https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a99e9de427---bajakaditorijofajalud.pdfIn PDF document text
  • http://sportsbettingconsultants.net/cote_dor_import/admin/ckfinder/userfiles/files/97419570537.pdfIn PDF document text
  • http://thegioixedap.net/upload/files/71752579156.pdfIn PDF document text
  • http://brmhn.com/userfiles/file/20210810193557_s8v68g.pdfIn PDF document text
  • http://puppiesulove.com/clients/7/7f/7fa6d7836ea929643a3c23f4562b158d/File/jiwol.pdfIn PDF document text
  • https://xaydungdonggia.com/app/webroot/files/images/pages/files/42142004828.pdfIn PDF document text
  • http://xn--49s538bo8ux8c.net/userfiles/file/sonisejiweb.pdfIn PDF document text
  • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/60ad94f69743a318d2a839b809151d38/xatibolowiwisotexo.pdfIn PDF document text
  • http://impressivetravelvietnam.com/upload/files/82471866386.pdfIn PDF document text
  • http://abwjefferson.com/uploads/files/47732866929.pdfIn PDF document text
  • http://chixue.com/uploadfile/file/20210531065615.pdfIn PDF document text
  • http://brmhn.com/userfiles/file/20210803193808_dv9zv8.pdfIn PDF document text
  • http://lukinserv.hu/file/tamelikilosareja.pdfIn PDF document text
  • https://almondzwealth.com/administrator/imagetemp/file/90710321424.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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