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 https://crewmak.ru/uplcv?utm_term=free+password+remover PDF link annotation

  • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/5828b613bb7f44390bfa2bd64a53a7b6/tozolixavazes.pdfIn PDF document text
  • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/82lng6c54p4vktuv8u7paji374/gisij.pdfIn PDF document text
  • http://lumieretvie.com/userfiles/file/davitotebugiwenogaketa.pdfIn PDF document text
  • http://pantryscan.com/123cars/imagefck/file/pizenuzidozivuzuwevimire.pdfIn PDF document text
  • http://ikhmongol.mn/ckfinder/userfiles/files/rudikomulajalujaweze.pdfIn PDF document text
  • http://tnslib.su/userfiles/files/84034251889.pdfIn PDF document text
  • http://felixefontesadvogados.com.br/ckfinder/userfiles/files/67147238939.pdfIn PDF document text
  • http://hausdergesundheit.net/userfiles/files/dobululetav.pdfIn PDF document text
  • http://mintaialuminum.com/d/files/47871028543.pdfIn PDF document text
  • http://lovesenergy.nl/file/jetuxezunemejidugisijol.pdfIn PDF document text
  • http://speaklifeiamgreatness.com/files/files/nebodojeluzexevagoropojob.pdfIn PDF document text
  • http://e-baze.lv/images/site/file/vejesenarupuwufekeder.pdfIn PDF document text
  • http://rasciindia.com/firetech/ckupload/files/81837599407.pdfIn PDF document text
  • https://watfordfairtrade.org/app/webroot/img/files/38538360710.pdfIn PDF document text
  • https://maintogelonline2.bet/contents/files/xilujupunorexozegasi.pdfIn PDF document text
  • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/0bbbc051237a5f52d753316a7550b2d1/kebew.pdfIn PDF document text
  • http://www.cda.org.hk/ckfinder/userfiles/files/midovobigefi.pdfIn PDF document text
  • http://www.jacenter.org/js/ckfinder/userfiles/files/98943203752.pdfIn PDF document text
  • https://krossi.ru/images/content/files/7036900905.pdfIn PDF document text
  • http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/1613cfc45c007a---fabodedimene.pdfIn PDF document text
  • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133f3501437d---vutijigusiz.pdfIn PDF document text
  • http://changwontour.kr/FileData/ckfinder/files/20210913_1996A560C1FCDA35.pdfIn PDF document text
  • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe3d6066b2---7979672561.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/23234717811.pdfIn PDF document text
  • http://marleenjansen.nl/images/uploadfiles/8170932375.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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