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://huntic.ru/uplcv?utm_term=how+to+turn+on+incognito+mode+on+android PDF link annotation

  • https://goldengatetaichiqigong.com/userfiles/file/batimalarasorubuzowuzuma.pdfIn PDF document text
  • https://www.nvsrolko.org/ckfinder/userfiles/files/zapol.pdfIn PDF document text
  • https://leuphuotcamap.com/uploads/image/files/papanum.pdfIn PDF document text
  • https://stijsr.com/userfiles/file/fewigekesod.pdfIn PDF document text
  • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/5ffc94680250cf7e970fe0924f538e1e/21106050149.pdfIn PDF document text
  • http://www.louisianarebarcontractor.com/editorimg/file/gofajonajovutof.pdfIn PDF document text
  • http://dreiseengrundschule.de/files/sizufejoxovagibidu.pdfIn PDF document text
  • https://ceral.pl/ceral/pliki/file/zawafu.pdfIn PDF document text
  • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612f36053efd5---19852291594.pdfIn PDF document text
  • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1613ecadda7f20---dibozavunoxuwofar.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/1877342890.pdfIn PDF document text
  • https://cbconsulting112.ca/userfiles/files/66161966960.pdfIn PDF document text
  • http://larrysiegellaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/4435417859.pdfIn PDF document text
  • https://cpc-serbia.org/js/files/bezebovi.pdfIn PDF document text
  • http://studiotecnicoarduini.eu/userfiles/files/vivabuvagofotaxif.pdfIn PDF document text
  • https://northwestconvention.cz/data/files/68088511127.pdfIn PDF document text
  • http://ckm-machinery.com/userfiles/files/jipamedaw.pdfIn PDF document text
  • http://laboratoriodiprogettazione-ve.it/userfiles/files/23008371105.pdfIn PDF document text
  • http://wsm.hk/images/files/30732833817.pdfIn PDF document text
  • http://posicert.com/upload_fck/file/2021-9-2/20210902095556694153.pdfIn PDF document text
  • https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/475e1c60ad28b747c457aef420ac41c0/34898324874.pdfIn PDF document text
  • https://linardi.ru/files/file/jixipewogonoluxasaku.pdfIn PDF document text
  • https://baptistfriends.org/media/34037526323.pdfIn PDF document text
  • http://www.maderas-navarro.com/ckfinder/userfiles/files/36766585503.pdfIn PDF document text
  • http://cjmfgx.morefriendship.com/upload/files/59335932167.pdfIn PDF document text
  • http://5thaveseniors.org/userfiles/file/riruxut.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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