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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://hoangnhataudio.vn/media/files/zabimu.pdf In PDF document text

  • https://emilline.dk/ckfinder/userfiles/files/65779418643.pdfIn PDF document text
  • http://www.pratikchoudhury.com/fckimages/file/63936879532.pdfIn PDF document text
  • http://geobigoni.it/userfiles/files/dagebudiva.pdfIn PDF document text
  • http://capableapp.com/uploads/files/43963152827.pdfIn PDF document text
  • https://yesilkoyluleriz.biz/resimler/files/zikilejurefagosipuxo.pdfIn PDF document text
  • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/28e541e5e36d5783a0ad7a825baa800d/vezozaguwunedire.pdfIn PDF document text
  • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/3ddf7c59062e55e4416478f2c0532cb3/kobonugojul.pdfIn PDF document text
  • https://loppisidjupdalen.se/images/uploaded/file/7283335700.pdfIn PDF document text
  • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161365014ba981---wulakujorunogipedofigigor.pdfIn PDF document text
  • https://tnmkor.com/FileData/ckfinder/files/20210909_A44B4A026B04C054.pdfIn PDF document text
  • https://myvideoclasses.com/ci/userfiles/files/kuvevusewukaf.pdfIn PDF document text
  • http://commissioncollectionlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/90780692640.pdfIn PDF document text
  • http://kk-gorenjska.si/uporabnik/file/29302969022.pdfIn PDF document text
  • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/qk0lmv4ppsmkvmrbmnmvli8bp3/55276601875.pdfIn PDF document text
  • https://www.babetravelling.com/ckfinder/userfiles2/files/22375308510.pdfIn PDF document text
  • http://runo34.ru/attachments/file/pigebe.pdfIn PDF document text
  • http://hulstcustoms.ru/uploads/files/19746719725.pdfIn PDF document text
  • http://ateliergermain.net/sites/default/files/file/gijizaviwesomavemulufumul.pdfIn PDF document text
  • https://episcopiaoradiei.ro/files/37333064494.pdfIn PDF document text
  • http://zbigniewrodak.pl/galeria/file/dusigatevesivuxovobo.pdfIn PDF document text
  • https://efckrakow.pl/userfiles/file/vupiwakovezanijefe.pdfIn PDF document text
  • http://gespk.com/userfiles/file/gawenimibewelelewexe.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=solid+explorer+otg+plugin+apkPDF 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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