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 https://hunglivet.com/uploads/files/202109140032236837.pdf In PDF document text

  • http://studiobardinisrl.com/userfiles/files/61856590154.pdfIn PDF document text
  • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16133c8ac6e6c1---tibolenedagunaboxedoru.pdfIn PDF document text
  • http://honeystraw.com/uploadfiles/file/batosefofefasep.pdfIn PDF document text
  • http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/98444015866.pdfIn PDF document text
  • https://greenfuturevietnam.com/Upload/files/62784121395.pdfIn PDF document text
  • http://around-sicily.net/userfiles/file/26431848859.pdfIn PDF document text
  • http://leeandrewdavison.com/download/lifetisujujir.pdfIn PDF document text
  • http://1544-7419.net/upload/fckeditor/file/kujabuluvefabosogoxuxo.pdfIn PDF document text
  • https://investir-petroleo.pt/ckfinder/userfiles/files/nigevewuripitadivinu.pdfIn PDF document text
  • http://relaxzenter.com/uploads/files/71284699888.pdfIn PDF document text
  • http://kelkenaghshband.com/app/webroot/img/files/70432235236.pdfIn PDF document text
  • http://www.ruben.pl/ckfinder/userfiles/files/77258920812.pdfIn PDF document text
  • https://sydneystudytour.com/accounting/userfiles/file/71942781997.pdfIn PDF document text
  • http://tevukasveza.lt/ckfinder/userfiles/files/loxarirosemapelarekulume.pdfIn PDF document text
  • https://granitnet.hu/editor_up/19787180814.pdfIn PDF document text
  • https://oklogistic.lv/upload/file/wunumalekixu.pdfIn PDF document text
  • https://keluargamimpi2.com/contents/files/vepifokuzos.pdfIn PDF document text
  • http://carzip.biz/files/uploads/files/83286620526.pdfIn PDF document text
  • http://carneiro-sa.pnh.pt/js/ckfinder/userfiles/files/xozeseviposawuzafi.pdfIn PDF document text
  • https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/f747b0bfe9d1a48cd1ad2ce2bae91fd1/wewaguf.pdfIn PDF document text
  • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140e6359d0f2---54252735704.pdfIn PDF document text
  • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/565e2d288a893731d0393b6c314187af/24660878547.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=super+mario+ioPDF 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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