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 https://synerhu.ru/uplcv?utm_term=engineering+applications+of+correlation+and+spectral+analysis+pdf PDF link annotation

  • http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609d82b42209f---jeforujolajuj.pdfIn PDF document text
  • https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/f6ron3pcg8q8ojr24o9j8ieqt8/54090880679.pdfIn PDF document text
  • http://nordicaluminium.ru/userfiles/file/feratedogamusarutupugaw.pdfIn PDF document text
  • https://vildmarksjagt.dk/userfiles/file/vobufezuwetekiwabapekedi.pdfIn PDF document text
  • http://dlt-nkp.com/fileupload//file/58937255693.pdfIn PDF document text
  • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/bbuhn130skad3joapnhvushfsg/pamaluw.pdfIn PDF document text
  • http://czdashan.cn/uploadfile/file/2021050908461673499.pdfIn PDF document text
  • https://egca.fr/userfiles/file/najele.pdfIn PDF document text
  • http://aksaaydinlatma.com/img/editor/image/file/mojipukizawanewizuz.pdfIn PDF document text
  • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b168241c9c8---59694376032.pdfIn PDF document text
  • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607022039a3dd---61795644094.pdfIn PDF document text
  • https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/150b271cd64bb278642135f15ed9f05d/46884312664.pdfIn PDF document text
  • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/mo3ri0t57v4r48obogin1arfs7/27386768008.pdfIn PDF document text
  • http://www.allatpatikapecs.hu/images/file/52464740114.pdfIn PDF document text
  • http://tuzvedo.hu/elemek/file/morosiwetujixesimed.pdfIn PDF document text
  • http://kubabus.cz/novy-web/upload/file/81152880797.pdfIn PDF document text
  • http://orderleesushi.com/uploads/files/63982508337.pdfIn PDF document text
  • http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/4ailvb66afbkv60ar7slpoips3/32487275443.pdfIn PDF document text
  • http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/k3kpoos53ufi60lv3uldti7vn2/79768336764.pdfIn PDF document text
  • http://sotel-perm.ru/site/file/widixexab.pdfIn PDF document text
  • https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/31gieqefe8q5pt5mfms1gck4k1/ruvapilipunaduwumonegif.pdfIn PDF document text
  • http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210627115736470283sappzg.pdfIn PDF document text
  • https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/q8u1p1j9ghjilhmq2bc7s1q2jd/fikozogilotevekes.pdfIn PDF document text
  • http://sunjewelsonline.com/userfiles/file/novujapujariromimemaguj.pdfIn PDF document text
  • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609842c8d4b91---17012295404.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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