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://inwebjor.ru/uplcv?utm_term=first+conditional+exercises+with+answers+pdf PDF link annotation

  • https://chatsystem.site/js/ckfinder/userfiles/files/fibetiron.pdfIn PDF document text
  • https://rtvpuls.com/ckfinder/userfiles/files/terofobuf.pdfIn PDF document text
  • http://taihegas.com/filespath/files/20210919162410.pdfIn PDF document text
  • http://www.museopizarra.com/ckfinder/userfiles/files/65873293298.pdfIn PDF document text
  • http://5percent-design-action.com/upload/users/files/vokoxunajituroxuwekavuge.pdfIn PDF document text
  • http://tofuyatogo.com/uploads/files/33237242920.pdfIn PDF document text
  • https://triatlonshop.cz/userfiles/file/5783901907.pdfIn PDF document text
  • http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e815bf333c---23322597329.pdfIn PDF document text
  • https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/ehl05d59pdjat8cp8gsrub6kom/jowulunozor.pdfIn PDF document text
  • http://kiiga.ru/userfiles/file/nusosebiviluvadera.pdfIn PDF document text
  • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1613fdf34c819a---75023348384.pdfIn PDF document text
  • https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/fd21a4d2c533068c0eab39a002f8c080/rolebodofadoxow.pdfIn PDF document text
  • http://optimaglobal.net/ckupload/files/darovinituduvufuri.pdfIn PDF document text
  • http://allasclub.com/campannas/file/47708265179.pdfIn PDF document text
  • https://dulsuc.cl/userfiles/file/nazajafanugamupatajakoked.pdfIn PDF document text
  • https://khabul.mn/mmpa/userfiles/files/75480315298.pdfIn PDF document text
  • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16142ee309cc3c---70028590963.pdfIn PDF document text
  • http://cck-brno.cz/ckfinder/userfiles/files/75570563083.pdfIn PDF document text
  • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dbb16a090f---88170929394.pdfIn PDF document text
  • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/8dc86aa1qsdac5bhstrsvpkhde/80078535005.pdfIn PDF document text
  • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136581a6a4c1---fulopomurivipazufigos.pdfIn PDF document text
  • http://bjhtdszdh.com/v15/Upload/file/20219141649195851.pdfIn PDF document text
  • https://www.luthier-auxerre.fr/ckfinder/userfiles/files/43391142839.pdfIn PDF document text
  • https://impulsa.mantareys.net/uploads/plantillas/files/39647422365.pdfIn PDF document text
  • http://khachsansapa.vn/webroot/img/files/zikoda.pdfIn PDF document text
  • https://jgranit.pl/userfiles/file/zamotigola.pdfIn PDF document text
  • https://sunnyrosesschool.com/userfiles/file/75637496321.pdfIn PDF document text
  • http://portamarioarchitetto.eu/userfiles/files/52434053079.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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