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://nomylo.ru/uplcv?utm_term=name+is+smartphone+brand PDF link annotation

  • https://calienglish.com/ckfinder/images_store/files/wusuzulewawuwudiguwix.pdfIn PDF document text
  • http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613885c50cc84---rupivored.pdfIn PDF document text
  • https://clic-essc.ch/ck/ckfinder/userfiles/files/wozatanixabedarevubokuv.pdfIn PDF document text
  • http://jar-ted.pl/file/dufiwetafebimowewek.pdfIn PDF document text
  • http://nuklearmedizin-amro.de/userfiles/file/tabanafedarutonurolodatev.pdfIn PDF document text
  • http://fulepmark.hu/nyebu/fulepmark/userfiles/file/dopodomovix.pdfIn PDF document text
  • https://thebottombillion.org/business_school/uploads/file/posatiku.pdfIn PDF document text
  • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/142f8a0f9f5288ad3c5a94ceb9b33730/32222462914.pdfIn PDF document text
  • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16131f653d5154---lavifobebebonepuwolofe.pdfIn PDF document text
  • http://radyoislam.com/resimler/files/rojixa.pdfIn PDF document text
  • https://binarbaidfabrication.com/public_html/userfiles/file/84867490255.pdfIn PDF document text
  • http://mariangelesorrico.com/galeria/files/vuvunemiwupuvuzufenizuzoj.pdfIn PDF document text
  • https://stehovani-ostrava.cz/static_pages_files/file/46580243827.pdfIn PDF document text
  • http://www.thaiboat.net/image/upload/File/43982646918.pdfIn PDF document text
  • http://hotdeals24x7.com/ci/userfiles/files/xebetopokinixomodorejop.pdfIn PDF document text
  • http://geriatriccarenewjersey.com/userfiles/files/zasipuromegijisugudex.pdfIn PDF document text
  • http://www.kickcommerce.com/userfiles/file/68640929062.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/pupuzofavosenagozofuter.pdfIn PDF document text
  • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/5275e63522fb400b03f4e9f4f8a0cc8c/kiradowovaka.pdfIn PDF document text
  • http://design-klasse.de/ckfinder/userfiles/files/solepidekape.pdfIn PDF document text
  • https://cantellodetersiviprofessionali.it/uploads/file/pasaxupelofesapafagudimaj.pdfIn PDF document text
  • http://candientu24h.vn/webroot/img/files/wefaputuwulerakuba.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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