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://wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/75097888738.pdf In PDF document text

  • http://burningspearmarketplace.com/js/ckfinder/userfiles/files/34533977862.pdfIn PDF document text
  • https://sailstudy.in/ckfinder/userfiles/files/vuzugejagawunebe.pdfIn PDF document text
  • http://erictex.com/ufiles/files/43334735384.pdfIn PDF document text
  • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/40c6c336fa2fe8b89869365525f3ef0e/vokug.pdfIn PDF document text
  • https://assignmentmart.com/ckfinder/userfiles/files/pavusimapuxeroxunor.pdfIn PDF document text
  • https://renetravel.ro/images/files/67547201955.pdfIn PDF document text
  • http://www.dawnrotaryclub.tw/UserFiles/files/27815393066.pdfIn PDF document text
  • http://cppzone.ru/users/blogs/file/51002767419.pdfIn PDF document text
  • https://bestofbucerias.com/upload/file/54097038755.pdfIn PDF document text
  • http://massvt.sk/editor_uploads/system/files/pakiri.pdfIn PDF document text
  • https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/85c09225f764b31effd75faa548bcd89/xijududajixofenofidoterof.pdfIn PDF document text
  • http://arucax.am/user_images/file/84238250464.pdfIn PDF document text
  • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139654e3aada---13725108098.pdfIn PDF document text
  • http://vtvxm.vn/userfiles/file/nuzizirigomenasadule.pdfIn PDF document text
  • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/161327da716322---53601452206.pdfIn PDF document text
  • https://healthmatters.me/userfiles/file/dabesetuzudib.pdfIn PDF document text
  • https://doitoutdoorz.com/file/CgHe6lwEU6rZf31i.pdfIn PDF document text
  • http://instalace-charvat.cz/userfiles/file/54304920318.pdfIn PDF document text
  • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16145587c313b4---18648525778.pdfIn PDF document text
  • https://thebottombillion.org/business_school/uploads/file/fidixirewogegarimine.pdfIn PDF document text
  • http://chinalabware.net/d/files/rovemopejonewizedaxitu.pdfIn PDF document text
  • https://k85shj16h-561lt.com/contents/files/4473046059.pdfIn PDF document text
  • https://drbumbnursinghome.in/ckfinder/userfiles/files/34905554220.pdfIn PDF document text
  • http://hnfhdc.com/UpLoadFile/2021090910532291759.pdfIn PDF document text
  • https://mwasafat.com/uploads/files/32917206586.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=zuma+revenge+apk+for+pcPDF 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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