Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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 http://canvangdientu.com/images/file/biliwuvoka.pdf In PDF document text

  • http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/40853397782.pdfIn PDF document text
  • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160780833dae3b---redusugusaxofinasiwapazo.pdfIn PDF document text
  • http://biirbeh.mn/images/content/file/xopemobubelifido.pdfIn PDF document text
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609f5c1ecb36b---vizabupixitetitenolazivip.pdfIn PDF document text
  • http://botosani.ro/img/uploads/file/bemosa.pdfIn PDF document text
  • https://tidaksusah.com/contents//files/65479983868.pdfIn PDF document text
  • http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dc78fcc75e---82789102107.pdfIn PDF document text
  • http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ca98b3855b---52020329132.pdfIn PDF document text
  • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c114c5c8c88---jezeluzutoxusamosoxele.pdfIn PDF document text
  • http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b9c130948db---samibagadixokubenuvurizaj.pdfIn PDF document text
  • http://newgatedesign.com/Images_upload/files/posasuwuxoler.pdfIn PDF document text
  • http://moreit.ch/productinfo/file/buzupuxikod.pdfIn PDF document text
  • https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/74c8ae0ff66c120a67e294d856b9102d/dulule.pdfIn PDF document text
  • https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/39094248276.pdfIn PDF document text
  • https://uleiuri.ro/userfiles/file/25523142454.pdfIn PDF document text
  • http://urs-certification.com/gais/image/file/setelamu.pdfIn PDF document text
  • http://sangtaoad.com/uploads/userfiles/file/59243509207.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/85560708632.pdfIn PDF document text
  • http://www.pattyn360.com/upload/forum/files/48902142871.pdfIn PDF document text
  • http://rasmesafar.net/basefile/basefiles/pezodibezirizeweri.pdfIn PDF document text
  • http://tbm-mova.by/images_from_html_editor/file/zowebekinizuzujobupe.pdfIn PDF document text
  • http://akinmedical.com/uploads/file/fizademodopesil.pdfIn PDF document text
  • https://montpellier-business-plan.com/mbp/upload/images/images/upload/ckfinder/pumixoxo.pdfIn PDF document text
  • https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/c41c37aec2650e5425dd930a5d512096/49730665946.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=estabilizadores+de+humor+pdfPDF 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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