Malicious PDF — malware analysis report

Heuristics 8

• 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 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.
• 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://jxloanchien.com/style/postimage/file/34367002335.pdf In PDF document text

  • http://bebelino.ru/userfiles/file/zukawezevipusuzedadofe.pdfIn PDF document text
  • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/otp7drc97fabkgc7hvqumdehp0/61806425335.pdfIn PDF document text
  • http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/40645812618.pdfIn PDF document text
  • https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/ikdo0v71vbrpo1u2cng9iakj65/tepatijomubedurutesepab.pdfIn PDF document text
  • https://west-holding.com/userfiles/file/11496211746.pdfIn PDF document text
  • https://xn----9sbccjdbca7cyaieg1a3j.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/df59c3d161cdf531995bbbe80b59e8a4/69624144483.pdfIn PDF document text
  • http://studioagm.it/userfiles/files/26347949563.pdfIn PDF document text
  • https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/votikufuzebawok.pdfIn PDF document text
  • https://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/qebtf8b05fojt0fcmo41cr7pj4/38192583179.pdfIn PDF document text
  • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608119ebca3ce---kezoxakagesokukadif.pdfIn PDF document text
  • https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/h1pudt9qq57cnueu5jtpj1q7r6/xotipiwiwexare.pdfIn PDF document text
  • https://atpl.aero/ckfinder/userfiles/files/4245447948.pdfIn PDF document text
  • https://cantellodetersiviprofessionali.it/uploads/file/61037708186.pdfIn PDF document text
  • https://conexkarvan.com/cache/fck_files/file/13508033335.pdfIn PDF document text
  • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160d421502097d---tamafarifawemumuvudifebe.pdfIn PDF document text
  • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab73b65cdd2---vudisipadub.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/94441471124.pdfIn PDF document text
  • http://rld-carbon.ru/file/fobakefawebofepug.pdfIn PDF document text
  • http://hanhthien.net/uploads/file/muzedosebozisepes.pdfIn PDF document text
  • http://aokisuper.com/ckfinder/userfiles/files/sozalimidese.pdfIn PDF document text
  • http://brilliantsolarpaneling.com/userfiles/file/dokag.pdfIn PDF document text
  • https://bibliotheque-des-arts.com/ckfinder/userfiles/files/pufefezemanab.pdfIn PDF document text
  • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160b632c9614b7---safabilinuv.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=gastric+emptying+symptomsPDF 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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