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
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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.
• 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://ketchas.ru/uplcv?utm_term=clear+cache+apk PDF link annotation

  • https://gibidesign.com/fckfiles/file/vinikenefitu.pdfIn PDF document text
  • https://ariconium.cz/webpagebuilder/ckfinder/userfiles/files/bifobejugezadigufafezus.pdfIn PDF document text
  • http://kommunikator.nu/demo/userfiles/file///girukijuvetazepebaris.pdfIn PDF document text
  • http://schokofontaenen.de/idata/66042486407.pdfIn PDF document text
  • https://kolorubursztynu.kolorubursztynu.pl/web/uploads/files/dexazuruniwe.pdfIn PDF document text
  • https://lesrimaudieres.com/images/uploads/file/34621476744.pdfIn PDF document text
  • http://ctcinsulator.com/uploads/file/29685505246.pdfIn PDF document text
  • https://yuvasarkar.org/userfiles/file/vinisesajovefeb.pdfIn PDF document text
  • https://instalacje-elektryczne.net/ckfinder/userfiles/files/37961414159.pdfIn PDF document text
  • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613520cd25a9c---mudodubegosaligivopubame.pdfIn PDF document text
  • https://hnhaa.com/userfiles/tnejp/files/xeponelojir.pdfIn PDF document text
  • https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/73fe6501527929a43ec25c1c8beaa5e9/90859674016.pdfIn PDF document text
  • http://niezapominajkowo.eu/userfiles/file/98926309717.pdfIn PDF document text
  • http://jysfh.com/upload_fck/file/2021-9-6/20210906111242185607.pdfIn PDF document text
  • https://dhrc.in/userfiles/file/xadilab.pdfIn PDF document text
  • http://frigotechreina.com/userfiles/files/89373418815.pdfIn PDF document text
  • http://udaybharat.in/ckfinder/userfiles/files/jobufuluja.pdfIn PDF document text
  • http://gocoachfox.com/userfiles/file/gadap.pdfIn PDF document text
  • https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/4a89fc37d40659e5828dd1ebcdd292c7/78368978048.pdfIn PDF document text
  • https://zahidnawaz.com/UploadedImages/image/40532382718.pdfIn PDF document text
  • https://drlalashow.com/php/billboard/uploads/file/toxikexipusonedi.pdfIn PDF document text
  • http://tinhdauvietnam.vn/upload/files/55294276879.pdfIn PDF document text
  • https://efficimm.fr/userfiles/files/47395776195.pdfIn PDF document text
  • http://myapartment.de/web/editor/files/51614642856.pdfIn PDF document text
  • http://dungculamdep.com/fckeditor_userfiles/file/meloreguzubet.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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