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
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://archism.ru/uplcv?utm_term=cars+logo+vector+pdf PDF link annotation

  • https://www.truegridpaver.com/wp-content/plugins/super-forms/uploads/php/files/e985869eebdb8af2cbf97c23a3936587/fizegukegukokuxemo.pdfIn PDF document text
  • http://easternhoteljeju.com/FileData/ckfinder/files/20210819_4EF8A487EBBC9D51.pdfIn PDF document text
  • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/e4277d8895b08b7d0ac9fa1a5fe4609c/88939410459.pdfIn PDF document text
  • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/9a4239df20eb33c744bfa6beff080554/sutag.pdfIn PDF document text
  • https://mandarinkinesiska.com/userfiles/file/64294915409.pdfIn PDF document text
  • https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/is3aup804lrm091uo4n905m0fc/89966622221.pdfIn PDF document text
  • http://nfrostov.ru/upload/files/bizolufoja.pdfIn PDF document text
  • http://ilovehikari.com/uploads/files/guruleb.pdfIn PDF document text
  • http://tv-kitchen.ru/files/files/77561483005.pdfIn PDF document text
  • http://lacasedescaraibes.fr/file/15896196802.pdfIn PDF document text
  • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607bab4a40161---podot.pdfIn PDF document text
  • https://tasivn.com/upload/ck/files/wodoradavusoj.pdfIn PDF document text
  • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/160755d9607f33---65969890825.pdfIn PDF document text
  • https://balbok.net/admin/ckfinder/userfiles/files/gamigisujemibojapejozef.pdfIn PDF document text
  • https://mzlpro.com/web/img/podborky/files/5499993354.pdfIn PDF document text
  • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160a6f52f0d5e8---62317624230.pdfIn PDF document text
  • https://kodcomputers.ro/2664/uploads/70932614172.pdfIn PDF document text
  • http://derkwoo.com/upload/editor/files/30521707783.pdfIn PDF document text
  • http://erbaytag.com/resimler/files/7902653814.pdfIn PDF document text
  • https://www.sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/jukijuxulu.pdfIn PDF document text
  • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad463450ed5---sikikegenajelusizevuxozaj.pdfIn PDF document text
  • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b35e5b7163c---92161871751.pdfIn PDF document text
  • https://aiaciran.org/cache/fck_files/file/xumetoduranekegagek.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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