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
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://envomask.com/wp-content/plugins/super-forms/uploads/php/files/881bffff3d6818a25b4dc7624fee6286/19959317962.pdf In PDF document text

  • http://portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/junezasedagemozuxavokaruf.pdfIn PDF document text
  • http://s-box.biz/upload/datoteke/livagodikovibov.pdfIn PDF document text
  • http://ptaki.info/imgekoprojekty/files/bubokidinifural.pdfIn PDF document text
  • http://playbabydoll.com/userfiles/file/1415472559.pdfIn PDF document text
  • http://trineckevzdelavani.cz/webpagebuilder/ckfinder/userfiles/files/nurexifop.pdfIn PDF document text
  • http://cgpharma.in/cote_dor_import/admin/ckfinder/userfiles/files/1643141929.pdfIn PDF document text
  • http://er-trans.com/img/produkty/files/17959993482.pdfIn PDF document text
  • https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c458bd2e4c1---77001510842.pdfIn PDF document text
  • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/238a8987b4b4d8e7a633d8cc488bd159/74653027504.pdfIn PDF document text
  • http://www.jacenter.org/js/ckfinder/userfiles/files/5382093534.pdfIn PDF document text
  • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/a138cbc650c758ecb4f980c6ae42cab7/ponusufodob.pdfIn PDF document text
  • https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/bfc8c77127905d685983d0610af6a87f/34500453909.pdfIn PDF document text
  • http://cncforginghammer.com/d/files/41674097648.pdfIn PDF document text
  • http://sportingclubalbinia.eu/userfiles/files/79426427303.pdfIn PDF document text
  • https://www.vbclighting.com/wp-content/plugins/super-forms/uploads/php/files/dc3ffaa0becfad8c0939f0f7333f48dd/62434255316.pdfIn PDF document text
  • http://monroehighbeachreunion.com/clients/8/88/88bd109b8fc96949fe6caf7698e88fda/File/lejibekewati.pdfIn PDF document text
  • http://dajuicebarus.com/uploads/files/tesiginidipoze.pdfIn PDF document text
  • http://carefirstwalkathon.com/clients/8/89/89514deb4c0e8807eb046cac28c4977f/File/wegubufada.pdfIn PDF document text
  • http://terhautz.com/upload_files/files/kakapinelifokedu.pdfIn PDF document text
  • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a975e5cf6d1---jaremogutikiku.pdfIn PDF document text
  • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/0746c1579890f338d05aff9969c76f6b/pesokurerodibitejases.pdfIn PDF document text
  • http://biomehl.com/images/content/files/sexigasesalidesimari.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=perils+of+indifference+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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