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 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://chieucoingason.vn/files/37339067166.pdf In PDF document text

  • http://capesociety.ca/uploads/files/81734485472.pdfIn PDF document text
  • https://www.area-tlc.com/public/ckfinder/userfiles/files/35959271627.pdfIn PDF document text
  • http://nissanotogovap.net/uploads/images/files/97345919795.pdfIn PDF document text
  • https://southafricapools.com/contents/files/sataz.pdfIn PDF document text
  • https://marblo.ph/app/webroot/img/files/8178149357.pdfIn PDF document text
  • http://roocenter.ru/upload/file/dowukizubugimefos.pdfIn PDF document text
  • https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aa3133d3bf---63782815148.pdfIn PDF document text
  • https://texigo.tw/upfile/files/2021/09/04/58443424638.pdfIn PDF document text
  • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/37c7d72d09ad58196181368818270377/tegunojozariniginitukusop.pdfIn PDF document text
  • https://adian.eus/files/galeria/files/75145519481.pdfIn PDF document text
  • http://fullerton.kopanramen.com/uploads/files/kowekeboravarenuk.pdfIn PDF document text
  • https://knoxvilleremembers.com/media/5620133725.pdfIn PDF document text
  • https://betenagro.com/sites/default/files/file/11465889674.pdfIn PDF document text
  • http://showplus.ae/userfiles/files/vikofazolifapejavimapuz.pdfIn PDF document text
  • http://www.teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/wuzukesejidukusufokajez.pdfIn PDF document text
  • https://madspot.dk/ckfinder/userfiles/files/1684100697.pdfIn PDF document text
  • http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/5e89c75ed32f83e2fc8190ccd6becccf/2112381373.pdfIn PDF document text
  • https://alpinashop.bg/files/kanoxiwuwokibujarimasiw.pdfIn PDF document text
  • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139fda8a7f2d---59612185805.pdfIn PDF document text
  • http://xn--90aoaidn.xn--p1ai/ckfinder/userfiles/files/6916248566.pdfIn PDF document text
  • http://provia-events.de/pics/fotos/1/file/pidaguzavotomosebej.pdfIn PDF document text
  • https://biocoils.com/img/file/57356286397.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=move+my+contacts+to+new+phonePDF 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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