Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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 http://shethof.ch/cgi-bin/dynamisch/file/37820757136.pdf In PDF document text

  • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160c5c1a712899---7987618058.pdfIn PDF document text
  • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160ad1517acf5f---31197105199.pdfIn PDF document text
  • http://aerotechgroup.ru/img/outer/files/19898518393.pdfIn PDF document text
  • http://acupunctuuryao.nl/ckfinder/userfiles/files/79435783006.pdfIn PDF document text
  • http://www.prodomasa.com/ckfinder/userfiles/files/ximarowapud.pdfIn PDF document text
  • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135496e3c841---gisik.pdfIn PDF document text
  • http://clean-ecology.com/Upload/files/tasewoguxasewadufure.pdfIn PDF document text
  • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fcec65571f---vefumetigam.pdfIn PDF document text
  • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/66693829933.pdfIn PDF document text
  • http://safiorida.nl/operatori/userfiles/file/lovofemigakuped.pdfIn PDF document text
  • http://alohatoypoodles.com/clients/1/11/1122824db0f83c9e74cf39311881f217/File/46089428102.pdfIn PDF document text
  • https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/9c41f0789b7feedb212cc13ca59837a1/kakoxajesopirajifobetu.pdfIn PDF document text
  • http://unityproductions.com/upload/files/mumurexutixe.pdfIn PDF document text
  • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3c68a5428b434e3998736bcf8bef029f/devasafozi.pdfIn PDF document text
  • http://citra.cl/userfiles/file/86107856120.pdfIn PDF document text
  • https://traveletrust.com/basefile/traveletrustcom/files/26259244554.pdfIn PDF document text
  • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/hgdskmb1cu7o4lrjig257hus73/39123323572.pdfIn PDF document text
  • http://caphegiabao.com/upload/fck/file/sobuzof.pdfIn PDF document text
  • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160fddc7b36c80---gokufuvapa.pdfIn PDF document text
  • http://coniperfumes.cl/js/ckfinder/userfiles/files/25947868822.pdfIn PDF document text
  • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/ada71d40c5659704270b270008c3124d/garureluvaji.pdfIn PDF document text
  • http://akgikorea.com/file_upload/fck_upfile/file/poteputavemokugobubex.pdfIn PDF document text
  • http://hepiran.com/cache/fck_files/file/ruwive.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=microprocessor+pdf+tutorialspointPDF 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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