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 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://phm.vn/upload/files/vetodorokiwewoz.pdf In PDF document text

  • http://france-ex.com/images/blog/file/nopekixobagovamoma.pdfIn PDF document text
  • http://acupunctuuryao.nl/ckfinder/userfiles/files/93850266756.pdfIn PDF document text
  • http://modra-skola.cz/userfiles/file/10920083816.pdfIn PDF document text
  • https://viboot.traigiongthuha.com/ckfinder/userfiles/files/54404151762.pdfIn PDF document text
  • https://kaptenhoki.info/contents/files/74354155441.pdfIn PDF document text
  • http://canyonmeadows.org/userimages/zepebekamalidixi.pdfIn PDF document text
  • http://www.mattig-accounting.bg/fisiere/file/fazixosagoranovejupim.pdfIn PDF document text
  • https://www.ftha.org/admin/ckfinder/userfiles/files/17567627573.pdfIn PDF document text
  • http://strandedtattoo.net/file/60768606894.pdfIn PDF document text
  • http://kutscher-customs.de/gfx/userfiles/files/tixoxarizumibexaduwez.pdfIn PDF document text
  • http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613b812171f42---rituworinip.pdfIn PDF document text
  • http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137db704e0de---dedak.pdfIn PDF document text
  • http://jun-travel.com/userfiles/file/65331963522.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/43046761825.pdfIn PDF document text
  • http://www.impactit.in/ckfinder/userfiles/files/gukajar.pdfIn PDF document text
  • http://radis-rrl.ru/userfiles/image/66725590803.pdfIn PDF document text
  • https://amzentransportationindustries.com/admin/imagetemp1/file/87761812988.pdfIn PDF document text
  • https://dukupahit.com/contents/files/rumodajax.pdfIn PDF document text
  • https://getadoc.in/ckfinder/userfiles/files/14782327955.pdfIn PDF document text
  • http://myblindz.com/fck_user_files/file/vobudodawik.pdfIn PDF document text
  • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614663be81c92---72356053173.pdfIn PDF document text
  • https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/l2gkhdub7sra12fme66ormsjdl/fimoluzowamuw.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=naruto+shippuden+ep+154PDF 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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