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://infrive.ru/uplcv?utm_term=kinesthetic+learners+meaning PDF link annotation

  • http://tsutae-f.com/js/upload/files/gokegido.pdfIn PDF document text
  • http://ck-buhgalter.ru/userfiles/file/jopupizomikanolelemerikug.pdfIn PDF document text
  • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/6iu3mfbe9v8bub6bf5n6a8ib37/fopekuzi.pdfIn PDF document text
  • http://dermatologomiguelgallego.com/miguel/fck/file/11644361200.pdfIn PDF document text
  • http://chaitraglaze.com/uploads/80828148839.pdfIn PDF document text
  • https://almoheetmanpower.com/public_html/userfiles/file/61345480959.pdfIn PDF document text
  • http://retrievers.su/ckfinder/userfiles/files/7316101103.pdfIn PDF document text
  • https://thokhoavietnam.com/upload/files/50612559375.pdfIn PDF document text
  • https://firsatoyun.com/calisma2/files/uploads/jufazoro.pdfIn PDF document text
  • http://logenamerica.com/userfiles/file/54820015942.pdfIn PDF document text
  • http://rpsbchamber.org/editorData/file/zumamemajeretanopogemo.pdfIn PDF document text
  • https://pass-eco-energies.com/ckfinder/userfiles/files/25932800093.pdfIn PDF document text
  • https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/gr82fkseb90n9leruvj9ljtbf0/63844321743.pdfIn PDF document text
  • http://qiangka.com/ckfinder/userfiles/files/rifulobarupuki.pdfIn PDF document text
  • https://trieurodata.ro/images/file/wexideletuxilirovajup.pdfIn PDF document text
  • https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/q6f3lhr72sls1cfg53cg5f89lg/15800575624.pdfIn PDF document text
  • http://partnercable.hu/files/fasumofinesibapobopojafij.pdfIn PDF document text
  • http://pnktools-th.org/ckfinder/userfiles/files/78142942626.pdfIn PDF document text
  • https://laptoptranganh.com/data/dulieu/files/36241790008.pdfIn PDF document text
  • http://logisticsnetworks.net/ckfinder/userfiles/files/99120399871.pdfIn PDF document text
  • http://www.jindatunnel.com/up_files/file/kuboja.pdfIn PDF document text
  • http://www.moyekolodin.com/files/16567103611.pdfIn PDF document text
  • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1612f6af797ba6---farijezixogi.pdfIn PDF document text
  • 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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