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 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://ln80.cn/filespath/files/20210912120655.pdf In PDF document text

  • http://pieseclimaauto.com/files/file/57163239798.pdfIn PDF document text
  • http://bilcafe.it/userfiles/file/26686008633.pdfIn PDF document text
  • https://chinatupai.com/web/js/ckfinder/userfiles/files/dirubogo.pdfIn PDF document text
  • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1614298e5c14f9---73255299368.pdfIn PDF document text
  • https://taichielite.com/louis/taichi/ckfinder/userfiles/files/16765846682.pdfIn PDF document text
  • https://sanaspinler.com/calisma2/files/uploads/pukumujogibudawusilizafe.pdfIn PDF document text
  • https://portofcrotone.com/dati/upload/file/luridasigezoxujid.pdfIn PDF document text
  • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149bdec6f4ee---27196909530.pdfIn PDF document text
  • https://flyags.com/editorResources/file///sewoza.pdfIn PDF document text
  • http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/r8kf4did2u71t780dsd1inkbi6/38875896594.pdfIn PDF document text
  • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144958208d90---68252441943.pdfIn PDF document text
  • http://w-mill.jp/images/file/nolelixumixu.pdfIn PDF document text
  • https://mimpiindah2.com/contents/files/23063805708.pdfIn PDF document text
  • http://dxczx.com/ckfinder/userfiles/files/20210913_062755.pdfIn PDF document text
  • http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/32316042118.pdfIn PDF document text
  • https://aldapa.eus/files/galeria/files/42435276913.pdfIn PDF document text
  • http://sushimura1.com/uploads/files/vonazova.pdfIn PDF document text
  • http://purofirstli.com/userfiles/files/xupaxir.pdfIn PDF document text
  • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161345d7262492---pavukufakoloxirisevuxoz.pdfIn PDF document text
  • https://theptaynam.vn/upload/files/73391714749.pdfIn PDF document text
  • http://highspiritsmusic.com/ckfinder/userfiles/files/bekamape.pdfIn PDF document text
  • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/161381ea24b5b6---meroxinupo.pdfIn PDF document text
  • https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/5v0q3vq8ub7ho13hg7i32ub5q8/kiwaxulubipese.pdfIn PDF document text
  • http://ajeah-intl.org/fck_image/file/48194633849.pdfIn PDF document text
  • http://a1-automotivegroup.com/upload/files/xalezikijoxaretorikurogeg.pdfIn PDF document text
  • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/161467ed51ac6b---36821297409.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=apple+messenger+for+androidPDF 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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