Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://wastran.ru/uplcv?utm_term=transfer+files+via+nfc PDF link annotation

  • https://soechi.id/userfiles/file/zozisu.pdfIn PDF document text
  • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613012609f02a---setowezevur.pdfIn PDF document text
  • https://mayphotocopydogia.com/upload/files/belalexogebidor.pdfIn PDF document text
  • http://www.bongbansaigon.com/uploads/files/56842599944.pdfIn PDF document text
  • http://cissi.it/userfiles/files/66616525378.pdfIn PDF document text
  • http://qualityspices.in/ckuploads/files/limetub.pdfIn PDF document text
  • http://csc-028.com/userfiles/file/20210917103539_ydi4vk.pdfIn PDF document text
  • http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16136bce127e07---11430171910.pdfIn PDF document text
  • http://studiotecnicodavico.eu/userfiles/files/30470730359.pdfIn PDF document text
  • http://gestioniarmatoriali.it/puseg.pdfIn PDF document text
  • https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/9eff8315151f0177dd3342f71d6a2f21/42003787371.pdfIn PDF document text
  • https://omnistopbollards.com/application/third_party/ckfinder/userfiles/files/23857128578.pdfIn PDF document text
  • http://coachhouse.info/assets/file/ramuzomibawibemoziribamag.pdfIn PDF document text
  • http://gzlmjx.com/data/home/bxu2343160066/htdocs/uploadfile/files/kidovab.pdfIn PDF document text
  • http://cosmoscm.com/contents/files/54732157638.pdfIn PDF document text
  • http://cmuniontravel.com/userfiles/files/samiresaj.pdfIn PDF document text
  • http://westpakusa.com/phpsites/vertical_living/uploads/file/dobarupimidi.pdfIn PDF document text
  • http://xn--o39a91gvwm83kbsn.net/FileData/ckfinder/files/20210907_44DFD27DAE233992.pdfIn PDF document text
  • https://childprotectionindia.com/lexcyberia/userfiles/files/82287998192.pdfIn PDF document text
  • http://rallyteamwalraven.nl/file/nugetadigub.pdfIn PDF document text
  • http://maasmartcity.com/userfiles/file/vozitipowexotalote.pdfIn PDF document text
  • http://joelcsimonesq.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rukid.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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