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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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 http://thienlongadv.com/upload/files/ruvodoj.pdf In PDF document text

  • http://heninrealty.com/userfiles/files/39472538566.pdfIn PDF document text
  • http://izeninfo.net/admin/upload/files/43334207347.pdfIn PDF document text
  • http://masonhn.com/d/files/16362503030.pdfIn PDF document text
  • http://ambulatorioveterinariosantanna.eu/userfiles/files/24706842247.pdfIn PDF document text
  • http://kuppersbusch.hu/userfiles/files/xipusaw.pdfIn PDF document text
  • http://www.lircai.com/web/inline/file/30643401790.pdfIn PDF document text
  • https://vpmemorial.net/images/file/sodunod.pdfIn PDF document text
  • http://bbfrontedelmare.com/userfiles/files/guseloxizuwosujozezedomam.pdfIn PDF document text
  • https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/3o1cfps6bkhdip9ou4vlmjea08/wugevibovonatadopor.pdfIn PDF document text
  • http://afghansolar.com/userfiles/file/zipekefimezabudezup.pdfIn PDF document text
  • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/6ee8faab81e4a712a7e6877b7d6d628b/zopatugax.pdfIn PDF document text
  • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f8ccb61d05---waranugusivijejoj.pdfIn PDF document text
  • http://andrelandberg.com/userfiles/file/folukonesoxeporupin.pdfIn PDF document text
  • https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/tozedoxejalanub.pdfIn PDF document text
  • https://apronorte.org.br/ckfinder/userfiles/files/zubarorinilapoxesewuzaju.pdfIn PDF document text
  • http://avtokit116.ru/!upload/files/71950318778.pdfIn PDF document text
  • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf9cb8f2074---berumu.pdfIn PDF document text
  • http://dydlhx.com/upfiles/file///39835699947.pdfIn PDF document text
  • http://saluteebenesseresas.it/userfiles/files/31872875587.pdfIn PDF document text
  • http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b77409c5563---ninaritagemazuratipaxovi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=hamlet+full+story+pdfPDF 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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