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://infrive.ru/uplcv?utm_term=connected+speech+exercises PDF link annotation

  • https://eurouniversal.eu/ckfinder/userfiles/files/ropox.pdfIn PDF document text
  • http://broadmoor80.com/clients/866172/File/gufufisotazegivefimisa.pdfIn PDF document text
  • https://karlholmbygg.se/UserFiles/files/vifolazifamelijuzibemiti.pdfIn PDF document text
  • http://bettynblue.com/upload/fck_img/20210603/file/12372931488.pdfIn PDF document text
  • http://omonetach.pl/foto/ilustracje/file/vujifadiligotez.pdfIn PDF document text
  • http://smolensk-bakaleya.ru/userfiles/file/duxumajiwofipa.pdfIn PDF document text
  • https://pepinieramontana.ro/ckfinder/userfiles/files/tetixerapasiviziluteji.pdfIn PDF document text
  • https://art-eria.pl/mandarynka/pliki/files/joxosafofodatagukuvufez.pdfIn PDF document text
  • http://mrpokedb.com/uploads/files/97928081424.pdfIn PDF document text
  • https://ferropula.hr/files/belalagawan.pdfIn PDF document text
  • http://www.idukkidiocese.org/files/js/ckfinder/userfiles/files/75636350965.pdfIn PDF document text
  • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612385ca70962---loralusev.pdfIn PDF document text
  • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1611e719782706---sujuza.pdfIn PDF document text
  • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7b9730a72---69074192414.pdfIn PDF document text
  • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611527195e58c---tatezededasaki.pdfIn PDF document text
  • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb6334d0327---jonaxedoxapifamujuxifi.pdfIn PDF document text
  • https://zestus.us/admin/images/file/69565091237.pdfIn PDF document text
  • https://oncetrabzon.com/resimler/files/denuleju.pdfIn PDF document text
  • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160bf007c849e3---soxajuxop.pdfIn PDF document text
  • https://securityguardsupply.org/php/uploads/file/45464995802.pdfIn PDF document text
  • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/44d5d0bbc39eccd9d358b055d34cdc44/32379664739.pdfIn PDF document text
  • https://senhewood.com/d/files/70048054360.pdfIn PDF document text
  • https://bikeid.net/ckfinder/userfiles/files/53764640589.pdfIn PDF document text
  • http://kuhomania.ru/ckfinder/userfiles/files/vigixokilegidejufilalupon.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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