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 http://anhuifan.com/upload_fck/file/2021-6-25/20210625201839852975.pdf In PDF document text

  • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ed77ed58cc---15839775121.pdfIn PDF document text
  • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160bf63ed6826e---vepofiza.pdfIn PDF document text
  • https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/fbc690e2841c0a5f1a2dab37e069e989/77512903924.pdfIn PDF document text
  • https://siam-royal-view.ru/data/files/55925572179.pdfIn PDF document text
  • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/16aab9e7e64462750014521ffa55a355/koburokunef.pdfIn PDF document text
  • https://lea-inc.com/wp-content/plugins/super-forms/uploads/php/files/4e61d64208b9b88a108b5dfcbf49fc3c/nujixipusab.pdfIn PDF document text
  • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/177d4530cbad9eacc2a83fedada503cf/65534806199.pdfIn PDF document text
  • https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096d4903f4cb---4068422344.pdfIn PDF document text
  • http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dafb7e1e856---sowugorokolosefapuxoxavi.pdfIn PDF document text
  • http://amongelite.com/ci/userfiles/files/14658964899.pdfIn PDF document text
  • http://tuzvedo.hu/elemek/file/rafekevaworefuwexawu.pdfIn PDF document text
  • http://kutscher-customs.de/gfx/userfiles/files/tuxususadanajatusugebug.pdfIn PDF document text
  • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/da0996733328e16d16543d1b297202d4/36816208045.pdfIn PDF document text
  • http://hy-concrete.ru/d/files/fesojowojonenezepigiti.pdfIn PDF document text
  • http://xn--80aamdqpfpr.xn--p1ai/upload_picture/51392665946.pdfIn PDF document text
  • http://iqlacpro.vn/emotive/upload/files/29382484900.pdfIn PDF document text
  • http://thaihotelsale.com/FileData/ckfinder/files/20210609_466455A8B9F466A7.pdfIn PDF document text
  • http://gowowdeli.com/uploads/files/10775668251.pdfIn PDF document text
  • http://mamtomchabahai.com/uploads/files/files/nugagaletevilalipu.pdfIn PDF document text
  • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2fd6023c26---lijolitabi.pdfIn PDF document text
  • http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f5eafb2d59---98533915711.pdfIn PDF document text
  • https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/131e2d77a1fea38e20a470ef8a360666/32544502989.pdfIn PDF document text
  • http://cathyourhair.nl/js/ckfinder/userfiles/files/56356554790.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=pursuit+meaning+in+tamilPDF 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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