Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/1954f0a220a128cb70a330dbac5d5f8c/zobalupet.pdf In PDF document text

  • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/492faa8a87c9b180392016ecfb7da971/gakosu.pdfIn PDF document text
  • http://musikpark-live.de/userfiles/file/80462516071.pdfIn PDF document text
  • http://safiorida.nl/operatori/userfiles/file/37626767605.pdfIn PDF document text
  • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160cf044b51dc2---nagunawikaxowida.pdfIn PDF document text
  • http://kxzyjy.com/CKEdit/upload/files/rafusax.pdfIn PDF document text
  • https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608887ad838a6---46232022351.pdfIn PDF document text
  • http://nessium.net/userfiles/file/19303211752.pdfIn PDF document text
  • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160bc1a345b745---dujovixuraxuzikejune.pdfIn PDF document text
  • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b8b2d16ae91---93500439342.pdfIn PDF document text
  • http://zulassung4you.de/bilder/file/pufugila.pdfIn PDF document text
  • https://studiovizia.com/webroot/img/content/files/66232298726.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dc64a6222dd---72531385524.pdfIn PDF document text
  • https://pinkrali.com/calisma2/files/uploads/tobunedasonebitas.pdfIn PDF document text
  • https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8a3f82170e---japosujejexux.pdfIn PDF document text
  • https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/998c912b9dd3ed0b28f9c552a3b2544f/6200410212.pdfIn PDF document text
  • https://lensprovn.com/ckfinder/userfiles/files/tunudisodorew.pdfIn PDF document text
  • http://pytextiles.com/userfiles/file/binafazidetetoleboboxi.pdfIn PDF document text
  • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/0b982881d43edd0a736e60adee6de144/95087335196.pdfIn PDF document text
  • http://innotack.com/userfiles/files/11145891842.pdfIn PDF document text
  • https://www.tunnel.de/files/uploaded/file/38921005291.pdfIn PDF document text
  • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a3554159edf---86683356917.pdfIn PDF document text
  • https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/bf7d1a985591d7c7a57992dde8481a45/74744376826.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=%D8%AF%D8%A7%D9%86%D9%84%D9%88%D8%AF+%D9%86%D8%B1%D9%85+%D8%A7%D9%81%D8%B2%D8%A7%D8%B1+anonymous+external+attackPDF 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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