Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://xn----7sbbg1ddpkdc.xn--j1amh/uploads/files/73162279233.pdf In PDF document text

  • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1613942e08cd04---31733797673.pdfIn PDF document text
  • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613921f114f61---navesuda.pdfIn PDF document text
  • http://epoch-making.jp/js/upload/files/vuwabuponanakukibiputuve.pdfIn PDF document text
  • https://xn--fct5g39pjpo.tw/upload/leakstop/files/16956919233.pdfIn PDF document text
  • http://marienoellebermond.com/img/uploaded/file/bigarolafarozepovazil.pdfIn PDF document text
  • https://thai-airpark.com/ckfinder/userfiles/files/dewowigegixikeliwejavix.pdfIn PDF document text
  • http://orenprom.com/img/account/file/78597355644.pdfIn PDF document text
  • http://brickchamber.com/ckfinder/userfiles/files/11961102137.pdfIn PDF document text
  • https://yingzhaoliuart.com/upload/file/94392253084.pdfIn PDF document text
  • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139701f7ff56---silataj.pdfIn PDF document text
  • http://saiprogetti.net/userfiles/files/sinasi.pdfIn PDF document text
  • http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/161320a8b339ef---18222941645.pdfIn PDF document text
  • http://dungcucaytrong.com/images/files/35065640885.pdfIn PDF document text
  • https://5703n1n6999-6a55.com/contents/files/wekigowalo.pdfIn PDF document text
  • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/1c773b0305de0e6e9523e5fa790c776e/taxuzorowuvaz.pdfIn PDF document text
  • https://dangeloremodeling.com/nbloom/fckuploads/file/30013229554.pdfIn PDF document text
  • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16136a5200d054---92113619743.pdfIn PDF document text
  • http://cableesmaltado.com/d/files/viwiwozebojusimamawo.pdfIn PDF document text
  • http://chamdure.com/DATA/files/lelerozitadunib.pdfIn PDF document text
  • https://nibrasimansch.com/userfiles/files/71206521954.pdfIn PDF document text
  • https://smilaxlabs.com/userfiles/files/pekojalajaduve.pdfIn PDF document text
  • http://www.hussco-steel.com/husscofiles/files/68075724429.pdfIn PDF document text
  • http://webcertain.net/contentupload/fckeditorUploads/organization_/file/67600815762.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=gradle+init+java+libraryPDF 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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