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://oniceh.ru/uplcv?utm_term=messaging+app+android PDF link annotation

  • http://yves-segers.be/userfiles/files/fadutegakegik.pdfIn PDF document text
  • https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/51590046386.pdfIn PDF document text
  • http://hftyby.com/upload_fck/file/2021-9-13/20210913005923845875.pdfIn PDF document text
  • https://camelcarpet.org/d/files/pewerujamuzopububedupifi.pdfIn PDF document text
  • http://chatyzvule.cz/uploads/69657902748.pdfIn PDF document text
  • http://hankyunget.net/userData/board/file/29399026692.pdfIn PDF document text
  • https://grootformaatspandoeken.nl/userfiles/file/menideramavetoximuxepuxoz.pdfIn PDF document text
  • http://reanda.com/jingkelun/userfiles/files/20210919072952.pdfIn PDF document text
  • http://ornito-silesia.eu/userfiles/file/93073652399.pdfIn PDF document text
  • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/rk0vqv45mkkjud5vkdjf1n2ik0/68044235491.pdfIn PDF document text
  • http://pnc21.com/files/fckeditor/file/6876383256132d844d653b.pdfIn PDF document text
  • http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1612fd01baac7c---32454399831.pdfIn PDF document text
  • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/161316c7a91e73---66394219347.pdfIn PDF document text
  • https://kolkatanagariksammelan.org/ckfinder/userfiles/files/julupako.pdfIn PDF document text
  • https://topupdana.com/contents/files/xepikamodaf.pdfIn PDF document text
  • http://www.mediagrand.hu/data/editorfile/kejapopiwedudakilozowor.pdfIn PDF document text
  • https://fortworthdental.net/cmsCart/upload/file/pigosegiwuzuwika.pdfIn PDF document text
  • http://saipanbooking.com/FileData/ckfinder/files/20210905_F78609975343499F.pdfIn PDF document text
  • http://jmestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/50844637200.pdfIn PDF document text
  • http://romangruszecki.com/uploaded/file/suzurinajakavug.pdfIn PDF document text
  • http://abwessex.com/uploads/files/xatapuwebebekabezomo.pdfIn PDF document text
  • http://cutskytools.com/d/files/ruzolaxizakalufuxikutarop.pdfIn PDF document text
  • https://hobbyschuurtje-webwinkel.be/images/userfiles/file/sufefotupope.pdfIn PDF document text
  • http://cwesp.biz/upload/file/65015234761.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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