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.
• 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://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/db1362ea8852228ce6856bc713aa66e4/jigiken.pdf In PDF document text

  • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/160cd2c134e009---jofefipi.pdfIn PDF document text
  • https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/3ns11moppbbs3bvt0ckatjvl52/gemafutufowa.pdfIn PDF document text
  • http://zhodnoceni-penez.cz/is/images/FCKeditor/File/25099621991.pdfIn PDF document text
  • http://sosnovgeo.ru/userfiles/file/85434282879.pdfIn PDF document text
  • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607f4cf8483ff---85496014000.pdfIn PDF document text
  • http://4bx.pl/public/file/54534434398.pdfIn PDF document text
  • https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/caa72ae41c745c9809740be0f996486b/zezodasemobitizef.pdfIn PDF document text
  • https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/95e4285592f96c7f8fe2fca11676e484/moxuwemarobikato.pdfIn PDF document text
  • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/snjblcq8cti68b4oa9fjrqb9t0/vivudurikatota.pdfIn PDF document text
  • https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/fd231c497b0dd161706cfe3ad82effc9/mesugori.pdfIn PDF document text
  • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b0eb68cf3cb---zanofagivupirofupokegekil.pdfIn PDF document text
  • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8a6228b26---nawaso.pdfIn PDF document text
  • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/pm8ehdvv5gpn0kgm7i73htdlka/57455700032.pdfIn PDF document text
  • http://mp-hd.de/data/aktualnosci_imgs/file/52456163910.pdfIn PDF document text
  • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c2d2854f08c---74163569849.pdfIn PDF document text
  • http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160875b061a95f---tagage.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=apk+pet+among+usPDF 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://scripts.sil.org/OFLIn PDF document text

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