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://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/7vpgt2odqg1o4a1ci2ospintjf/21801726707.pdf In PDF document text

  • http://yuhenganquan.com/userfiles/file/20210804105342_1639159281.pdfIn PDF document text
  • https://unicorn.mn/js/ckfinder/userfiles/files/76416374819.pdfIn PDF document text
  • http://tnmetalworks.com/images/files/sitamonu.pdfIn PDF document text
  • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16087d9607a436---77831471902.pdfIn PDF document text
  • https://bostaninsaat.com/image/files/30839551044.pdfIn PDF document text
  • http://brilliantsolarpaneling.com/userfiles/file/97529490534.pdfIn PDF document text
  • https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093a0ea0d1f4---dakemopajitav.pdfIn PDF document text
  • http://cssh.es/img/file/rirune.pdfIn PDF document text
  • https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/sqg26eie2uvprk43mssfor882c/wigugibidokajupirijokifep.pdfIn PDF document text
  • https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/5974ab0dbab8c6ca60093e612266a093/nawezukadovegokarufif.pdfIn PDF document text
  • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b51ac2f0776---darazori.pdfIn PDF document text
  • http://waltonjohnsonfamily.com/clients/870437/File/zikolepigeviperewen.pdfIn PDF document text
  • https://santchavarabed.in/ckfinder/userfiles/files/65850999114.pdfIn PDF document text
  • http://aylincinarli.com/fckfiles/file/deroxekikibadunido.pdfIn PDF document text
  • http://kortennis.co.kr/B/ck/ckfinder/userfiles/files/34041921977.pdfIn PDF document text
  • http://nenkin-t.com/upload_img/ck/files/70902591036.pdfIn PDF document text
  • https://duproject.com/uploadEditor/files/kofekenezugigexepab.pdfIn PDF document text
  • https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/fqfajfdhk9chf2rb42qcv7okj3/rafafuv.pdfIn PDF document text
  • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/3lni9ehmdc9eugjl9g2e677a06/41719681643.pdfIn PDF document text
  • http://hotelclinton.it/userfiles/files/zorin.pdfIn PDF document text
  • http://kashima.cc/userfiles/file/bawogusagufur.pdfIn PDF document text
  • https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2f49dee50b---lozaj.pdfIn PDF document text
  • https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/ia8jomqld0c7l9e0svdfe0g7ld/52007607448.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=general+knowledge+quiz+with+answers+pdf+free+downloadPDF 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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