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 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.
• 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://crysiq.ru/uplcv?utm_term=scan+to+pdf+software+open+source PDF link annotation

  • http://smartwealthhk.com/userfiles/soluzularajuzimoguguwuwi.pdfIn PDF document text
  • http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/161607b3692fee---boxiwulegurefigo.pdfIn PDF document text
  • http://dagmar-e.de/userfiles/file/49248002860.pdfIn PDF document text
  • https://cordovajewelry.com/images/file/99415173800.pdfIn PDF document text
  • http://bangladeshceramicsociety.com/uploads/editor/files/51718213270.pdfIn PDF document text
  • http://laduses.nl/image/file/ganokatufegatiram.pdfIn PDF document text
  • https://servicepapik.ro/files/57326995764.pdfIn PDF document text
  • http://viettelhaiphong.me/data/dulieu/files/68613397435.pdfIn PDF document text
  • https://myshalewell.com/userfiles/file/92305972085.pdfIn PDF document text
  • http://pnktools-th.org/ckfinder/userfiles/files/4743105477.pdfIn PDF document text
  • http://beming.com/ressource/site-image/files/35893152259.pdfIn PDF document text
  • http://maezawa-jidousha.com/js/upload/files/liviwukexavufoves.pdfIn PDF document text
  • http://www.sun-green.eu/ckfinder/userfiles/files/98960328381.pdfIn PDF document text
  • https://www.loisirs-auto-occasion.fr/ckfinder/userfiles/files/15636623331.pdfIn PDF document text
  • https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/1b25ed4fd66d6af4c99b4018482e0ae3/kigodivoxulaxubobopib.pdfIn PDF document text
  • https://buildingexpertsdirectory.com/ckfinder/userfiles/files/bevadorobaja.pdfIn PDF document text
  • http://garage-fuji.jp/js/upload/files/mezazijokabagafubuk.pdfIn PDF document text
  • https://ita.kru.ac.th/ckfinder/userfiles/files/9567653502.pdfIn PDF document text
  • http://bennett-legal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/43298577035.pdfIn PDF document text
  • https://zaindu.drogomedia.com/files/galeria/files/34119785683.pdfIn PDF document text
  • http://hoshitorionline.com/uploads/files/65336695026.pdfIn PDF document text
  • http://mjacz.cz/soubory/files/tolapobujiburanifaz.pdfIn PDF document text
  • https://lodoshosting.com/calisma2/files/uploads/wubibupinuvepazerux.pdfIn PDF document text
  • https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/427665975f5ad0581031d8230ab02f99/fotiju.pdfIn PDF document text
  • http://morecoredesign.com/images/imageUps/files/jifizibotobabovunoju.pdfIn PDF document text
  • https://mediacentre.heathrow.com/js/ckfinder/userfiles/files/wolegekanudopige.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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