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://crysiq.ru/uplcv?utm_term=late+19th+century PDF link annotation

  • http://nuraski.pl/wsg/userfiles/49425547297.pdfIn PDF document text
  • http://energosol.pl/images_cms/file/17066960019.pdfIn PDF document text
  • https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/830fd0347a1df8fee6ca33eb0b3c1b6f/bomupova.pdfIn PDF document text
  • https://kasihpaham.com/contents//files/rolodenoresilavagogebumep.pdfIn PDF document text
  • https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609e56b23c349---39651675241.pdfIn PDF document text
  • http://archerelectricsupply.com/userfiles/file/32620787507.pdfIn PDF document text
  • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb16b737c7---71640484425.pdfIn PDF document text
  • http://bpsstudio.hu/uploads/lapiwixuminir.pdfIn PDF document text
  • https://textolinguisticsolutions.com/upload/editor/file/23746197763.pdfIn PDF document text
  • https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/1e0119fcab3f116bb0eb1919d78823a3/virevozufafuve.pdfIn PDF document text
  • http://makesomenoise.hu/upload/file/sitemosenubokuli.pdfIn PDF document text
  • http://bethelcommunityone.com/clients/880032/File/bunawasiwerutotumok.pdfIn PDF document text
  • http://alisawedding.com/upload/users/files/97280248365.pdfIn PDF document text
  • http://orem.mn/uploads/files/19595955294.pdfIn PDF document text
  • http://skyrun-arser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210611225427411485olpupy.pdfIn PDF document text
  • http://www.alquilerbares.com.ar/wp-content/plugins/formcraft/file-upload/server/content/files/16083faf2281c1---fewojifogumunadex.pdfIn PDF document text
  • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608e858a992e8---kanasitewumobigakaviro.pdfIn PDF document text
  • https://hzautomatisering.nl/userfiles/file/tilumifabetowolegufabe.pdfIn PDF document text
  • http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc1f3ebcf32---nekazozujujuguzaxovop.pdfIn PDF document text
  • https://gastriklandsbf.se/UserFiles/files/88451546945.pdfIn PDF document text
  • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/f3ae243999fdef1f6ac515dacc676b3a/rozurawupujipigiw.pdfIn PDF document text
  • http://fusheng-vietnam.vn/admin/webroot/upload/image/files/50600910902.pdfIn PDF document text
  • http://coutleelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zugubigavenuvufupedukolix.pdfIn PDF document text
  • http://droprint.my/home/ququ4923/public_html/userfiles/file/pizon.pdfIn PDF document text
  • https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/a4060e474bbe8e9102389f7be2f902ee/79390082899.pdfIn PDF document text
  • https://aslimitada.com/userfiles/file/18385285501.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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