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.
• JavaScript action low PDF_JAVASCRIPT
  PDF contains a /JavaScript action. 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://queure.ru/uplcv?utm_term=what+is+composite+number+example PDF link annotation

  • https://macintosh-szerviz-javitas.nuttydog.hu/ckfinder/userfiles/files/1694475752.pdfIn PDF document text
  • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/a52b5281fa5e1a8858dc4d0b8ad9f56d/wasunipunabesiv.pdfIn PDF document text
  • http://mhzsolutionz.com/userfiles/file/wofeloronaruvizopozojope.pdfIn PDF document text
  • http://le-nora.com/userfiles/file/bigizinixudewijanakini.pdfIn PDF document text
  • http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139cd4b9a54d---56633393429.pdfIn PDF document text
  • https://remini.hu/userfiles/file/varununofegidekavusuzu.pdfIn PDF document text
  • http://caythuocnam.org/images/files/gopulawa.pdfIn PDF document text
  • https://haysalon.com/public_html/userfiles/file/42485746986.pdfIn PDF document text
  • http://aftp.bg/userfiles/file/kirefumemubusolod.pdfIn PDF document text
  • http://fundacjaproartis.pl/javascript/ckfinder/userfiles/files/ludukotox.pdfIn PDF document text
  • http://apsons.eu/files/file/18287987582.pdfIn PDF document text
  • http://materialdeestudo.top/userfiles/files/79474398417.pdfIn PDF document text
  • http://anpharma.net/upload/files/61513560936.pdfIn PDF document text
  • http://22vek-omsk.ru/fck_editor_files/files/3621381671.pdfIn PDF document text
  • https://sma-dfgg.org/site/admin/file/vogotagirinawivozim.pdfIn PDF document text
  • http://inbjnews.com/data/cheditor/0603/files/dosujefopubijik.pdfIn PDF document text
  • http://cukrarska-vyroba.cz/UserFiles/File/jawulawezopijiziti.pdfIn PDF document text
  • http://savytrading.com/userfiles/file/mozesijusolulaxogof.pdfIn PDF document text
  • http://tcihk.com/userfiles/29043232671.pdfIn PDF document text
  • https://beautydiction.com/ckfinder/userfiles/files/93383900464.pdfIn PDF document text
  • https://tnmkor.com/FileData/ckfinder/files/20210922_5F10854478053FC9.pdfIn PDF document text
  • https://fiberglasssupplydepot.com/userfiles/file/sogepapimemepalogomabujo.pdfIn PDF document text
  • https://dom4m.de/userfiles/files/bomuzorovoxirep.pdfIn PDF document text
  • http://zeci.nl/im/image/87480764748.pdfIn PDF document text
  • https://fcimoveis.com/imgs/file/31438740712.pdfIn PDF document text
  • http://energcomb.net/cms_enercomb/sgi_userfiles/userfiles/files/naliregokigibatuk.pdfIn PDF document text
  • http://expertsystemgroup.com/file_media/file_image/file/xereke.pdfIn PDF document text
  • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/5d0fcf631193e8a718ef7487a1b7debf/2405010431.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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