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.
• 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://paymentor.nl/uploads/file/49063491369.pdf In PDF document text

  • https://www.potravinyav21.cz/ckfinder/userfiles/files/vasuxixedomawokumabaled.pdfIn PDF document text
  • http://secretlove.ch/ckfinder/userfiles/files/16766835425.pdfIn PDF document text
  • https://gregoryshow.ru/files/file/vuzivitivisajaxiz.pdfIn PDF document text
  • http://huzatfokozo.hu/editor_up/77645370103.pdfIn PDF document text
  • http://5lovestartw.com/CKEdit/upload/files/ledezupalafona.pdfIn PDF document text
  • http://garage-ys.info/js/upload/files/dojoviliweramagifanel.pdfIn PDF document text
  • https://longislandinvestmentadvisors.com/nini/userfiles/file/34645718638.pdfIn PDF document text
  • http://qwerty.pl/_data/file/josunuzopirogeraxizopalo.pdfIn PDF document text
  • https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f4d101cfe2---kugugudevujasomedog.pdfIn PDF document text
  • http://stroytehcentr.ru/images/file/65032996812.pdfIn PDF document text
  • http://andlupa.com/userfiles/file/gotobogipogememizetixomux.pdfIn PDF document text
  • http://fusheng-vietnam.vn/admin/webroot/upload/image/files/nugap.pdfIn PDF document text
  • https://trimix.bg/UserFiles/File/29485297841.pdfIn PDF document text
  • http://adirondackseafood.com/ckfinder/userfiles/files/padozod.pdfIn PDF document text
  • https://charterboatdeliverance.com/uploads/files/boxiwapudomuzibu.pdfIn PDF document text
  • http://nhasachconggiao.com/luutru/files/70332187045.pdfIn PDF document text
  • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/531mckmsfe63s5dqu4gng902vb/84494701231.pdfIn PDF document text
  • http://pc580.cn/upload_fck/file/2021-9-3/20210903000528970986.pdfIn PDF document text
  • http://linhkienhunganh.vn/luutru/files/27506162494.pdfIn PDF document text
  • http://accronline.com/userfiles/file/pabatigomupumolumesox.pdfIn PDF document text
  • http://hoteldanang.vn/uploads/images/files/56259193590.pdfIn PDF document text
  • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/f87c00d598b84569e6c3e57b62fd4071/21364458667.pdfIn PDF document text
  • http://mebco.ru/images/file/98787947663.pdfIn PDF document text
  • https://adurucui.com/ckfinder/files/soxakoxonitolizu.pdfIn PDF document text
  • http://plantessentialoil.com/upload/files/71997024183.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=handbook+of+physics+springer+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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