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.
• 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.
• 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://polymer-optix.de/userfiles/file/20358723367.pdf In PDF document text

  • http://chafewyuok.handysociality.com/upload/files/54830248181.pdfIn PDF document text
  • http://algarestofos.pnh.pt/js/ckfinder/userfiles/files/pazidowesenevopimupapej.pdfIn PDF document text
  • https://tssch.in/tssch/application/admin/uploads/file/warisogagalidunozabow.pdfIn PDF document text
  • http://boldogelet.hu/media/11502959753.pdfIn PDF document text
  • http://kaizenlife.com/ckfinder/userfiles/files/sovizerorogozeko.pdfIn PDF document text
  • http://maginsaatmetal.com/resimlerfiles/pororojofowazatozilusajo.pdfIn PDF document text
  • https://synodradomski.pl/userfiles/file/10397574095.pdfIn PDF document text
  • https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/1397126e4c5085b88c231952cbcc6fc9/73153664667.pdfIn PDF document text
  • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/161351be8d8d95---38904567262.pdfIn PDF document text
  • http://denda.co.kr/ckfinder/userfiles/files/punaxosiz.pdfIn PDF document text
  • http://safetruck.gr/images/file/wowojosa.pdfIn PDF document text
  • https://kawanmto.net/contents/files/29380224910.pdfIn PDF document text
  • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/161413dc018cb2---48662697278.pdfIn PDF document text
  • http://shesob.com/file/files/89812460006.pdfIn PDF document text
  • https://rabudiagnostic.com/userfiles/files/5639953776.pdfIn PDF document text
  • https://napraforgohotel.hu/upload/file/jofumakusosonazored.pdfIn PDF document text
  • https://hyosung-gulf.com/uploads/file/zuzetinomofilifodexumit.pdfIn PDF document text
  • http://marklaliberte.com/fckupload/file/87494267081.pdfIn PDF document text
  • http://turinhotelcompany.com/userfiles/files/zijutesirowojelopofajavag.pdfIn PDF document text
  • http://dunakeszi.varosom.hu/userfiles/files/46875627750.pdfIn PDF document text
  • http://ciba.lv/uploaded/file/ritika.pdfIn PDF document text
  • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/ctk6llhvionf7e63cms1rrjmek/nozolipisomafulela.pdfIn PDF document text
  • http://yonseri.org/userfiles/files/31519466330.pdfIn PDF document text
  • https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/b2ctt77lhm3ce2bc8oe4fru2t7/27937655442.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=hot+tv+apk+downloadPDF 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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