Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• ClickFix social engineering attack high SE_CLICKFIX
  Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
• 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://homestayhoian.thamtuddt.com/uploads/image/files/49762005349.pdf In PDF document text

  • http://lovesenergy.com/file/20494701711.pdfIn PDF document text
  • https://taumed.kz/upload/2021/10files/211001104920322096cai1j.pdfIn PDF document text
  • http://daotaoyduoc.org/wp-content/plugins/super-forms/uploads/php/files/97d399e0ba6a295e0a15f9853d47c801/60443034582.pdfIn PDF document text
  • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a14b13610f---vebabutopoxud.pdfIn PDF document text
  • http://evergladesharvesting.com/ckfinder/userfiles/files/xupotoxoxonisofev.pdfIn PDF document text
  • https://kaplaitalia.it/userfiles/files/jibaxazuboxer.pdfIn PDF document text
  • http://cmtoolsrental.com/user_img/files/3692764495.pdfIn PDF document text
  • http://gongin.humenia.com/upload/userfiles/2021/09/files/210926230340.pdfIn PDF document text
  • http://7seapharmtech.com/Uploadfiles/files/matutafani.pdfIn PDF document text
  • https://www.hkha.com.hk/ckfinder/userfiles/files/98273817504.pdfIn PDF document text
  • http://montpellier-businessplan.com/mbp/upload/images/images/upload/ckfinder/25400680981.pdfIn PDF document text
  • https://soyana.de/js/ckfinder/userfiles/files/89380607716.pdfIn PDF document text
  • http://deltools.com/userfiles/file/83021748396.pdfIn PDF document text
  • https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614f71e603b91---gevapijemudufedife.pdfIn PDF document text
  • http://airzo.net/userData/board/file/zuzakanazev.pdfIn PDF document text
  • https://grupahatak.pl/admin/_fck_files/file/38636420513.pdfIn PDF document text
  • https://mancomunidadvaldizarbe.com/userfiles/files/53314144133.pdfIn PDF document text
  • https://fivetc.net/uploads/files/dugidomut.pdfIn PDF document text
  • https://jnvhardoi.org/ckfinder/userfiles/files/70873409190.pdfIn PDF document text
  • http://doctour.hu/uploads/ckfinder/userfiles/files/dovilopejobedako.pdfIn PDF document text
  • http://elazentrale.de/images/uploaded/file/musizerow.pdfIn PDF document text
  • http://moto-bike.pl/userfiles/file/favidiv.pdfIn PDF document text
  • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614692b88f167---nozivu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=windows+invalid+partition+tablePDF 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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