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://inwebjor.ru/uplcv?utm_term=endometrial+biopsy+after+care PDF link annotation

  • http://www.ssc-ras.ru/ckfinder/userfiles/files/mudelagivelimagirut.pdfIn PDF document text
  • http://omonetach.pl/foto/ilustracje/file/93254145448.pdfIn PDF document text
  • http://www.pattyn360.com/upload/forum/files/xeseruluwipozon.pdfIn PDF document text
  • http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a66ecf5f8b4---88702284726.pdfIn PDF document text
  • http://balcimimarlik.com/resimler/files/54643407549.pdfIn PDF document text
  • http://circuitoinsulargc.com/documentos/file/53225106778.pdfIn PDF document text
  • http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/38263281311.pdfIn PDF document text
  • http://becucci.it/userfiles/files/8102769160.pdfIn PDF document text
  • https://csodamalom.hu/files/files/gegisumebonuzekorikelu.pdfIn PDF document text
  • http://gidaero.com/upload/fckeditor/file/14790993362.pdfIn PDF document text
  • http://somersetcountybar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gugasanidukuton.pdfIn PDF document text
  • http://totoumi.jp/upload/file/lavopefilutef.pdfIn PDF document text
  • http://medob.org/SITE/files/editor/file/repekajim.pdfIn PDF document text
  • http://casier-a-bouteilles.com/file/xuwubinipadezi.pdfIn PDF document text
  • http://backkwang.com/userData/board/file/vagiz.pdfIn PDF document text
  • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160a2bff8b7205---86429652106.pdfIn PDF document text
  • https://ilcaminodaugo.it/file/tijegemutotupasizuxori.pdfIn PDF document text
  • https://flardochform.se/userfiles/file/476971433.pdfIn PDF document text
  • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/91756f7a5a7a20aed9ddce4680b91415/44253637520.pdfIn PDF document text
  • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608468c1deadc---molimebijaran.pdfIn PDF document text
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/rg3ovdd381cmccti5gloadg0r0/80677763186.pdfIn PDF document text
  • https://tcremich.lu/files/files/fenakojudakukiduzeres.pdfIn PDF document text
  • http://coinproject.com/userfiles/image/file/33844898462.pdfIn PDF document text
  • https://rodolphe-blanchet.fr/Rodolphe/fckeditor/file/87039266048.pdfIn PDF document text
  • https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16072462a2a6e1---sifewapudodurezabawavigib.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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