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
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://chcial.ru/uplcv?utm_term=incremental+dynamic+analysis+pdf PDF link annotation

  • http://abaj.cz/UserFiles/File/bixazugodivamipajomudig.pdfIn PDF document text
  • https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/113892028c08cf396afc3c9d38acbf9b/52883714597.pdfIn PDF document text
  • https://webbsoil.com/home/webb/public_html/ckfinder/userfiles/files/nizoxufiperabe.pdfIn PDF document text
  • https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/4351e665b93dc9b756d6fb4c6de6dd42/27948405401.pdfIn PDF document text
  • http://meble-tk.pl/userfiles/file/sozenegegow.pdfIn PDF document text
  • http://newdimension.su/userfiles/file/26292954757.pdfIn PDF document text
  • https://yenhuy.vn/upload/files/69873380298.pdfIn PDF document text
  • https://vildmarksjagt.dk/userfiles/file/77366276143.pdfIn PDF document text
  • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607b0b6297b61---waxaletu.pdfIn PDF document text
  • https://sonarmusic.hu/up_image/file/xaretupogesipobuponinuf.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/8gfp5gbfbdvao1rg0atgf78kp7/jumogaz.pdfIn PDF document text
  • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/0127ada83862bcefa4734c5bf29ad315/xipodinanadumenizuwezoxiw.pdfIn PDF document text
  • http://www.oe.com.tw/ezadmin/ckfinder/userfiles/files/28723785767.pdfIn PDF document text
  • http://mobilenmr.com/files/files/79769119742.pdfIn PDF document text
  • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/16075bf76d6533---tagose.pdfIn PDF document text
  • https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/qjat9kfpab07a2teh0prgm3s53/rizezunasedip.pdfIn PDF document text
  • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b966fb71823---82005683928.pdfIn PDF document text
  • https://profipreklady.cz/www/ckfinder/userfiles/files/5195333868.pdfIn PDF document text
  • http://indyztyle.com/ckfinder/userfiles/files/876885720.pdfIn PDF document text
  • https://vetamblj.si/ckfinder/userfiles/files/jagevuxuvudemus.pdfIn PDF document text
  • http://chatyzvule.cz/uploads/jixabunixovuvema.pdfIn PDF document text
  • http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/b160f6078c8c94c7fb3c30da9444c6a9/narugad.pdfIn PDF document text
  • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16109fa4f2c062---samiroxififujotemu.pdfIn PDF document text
  • http://pizzeriadevita.it/userfiles/files/dexozozonuwod.pdfIn PDF document text
  • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/5a497a9e9aa823bde36361549a640394/lemubefurinofafixemenovaw.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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