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://krisoc.ru/uplcv?utm_term=free+codes+in+genshin+impact PDF link annotation

  • https://coherence.cz/userfiles/file/31310658136.pdfIn PDF document text
  • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/80b920bb43cad7b0b0fab3de847235bd/70081245702.pdfIn PDF document text
  • https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/9e940fec0c2ed5a69d03bc1eb1fee4e6/14811142635.pdfIn PDF document text
  • http://ncdesign.it/userfiles/files/78149366733.pdfIn PDF document text
  • https://granitabrasive.ro/editor_up/ziratidepirirusanugawe.pdfIn PDF document text
  • http://www.syrahresources.com.au/application/third_party/ckfinder/userfiles/files/mepuso.pdfIn PDF document text
  • http://tajesink.com/Uploadfiles/files/99055599460.pdfIn PDF document text
  • http://officeharbor.com/pdtInfo/gimevusufidukunaki.pdfIn PDF document text
  • http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613e7978eb4f5---mekituwirefiji.pdfIn PDF document text
  • https://tuoitre.bacgiang.gov.vn/lib/ckfinder/files/kalapiz.pdfIn PDF document text
  • https://transturist.ba/ckeditor/ckfinder/files/files/zevep.pdfIn PDF document text
  • http://archgeo-leszno.pl/uploads/userfiles/files/71933013645.pdfIn PDF document text
  • https://pointvirgule.ca/upload/editor/file/lajewad.pdfIn PDF document text
  • http://kolbiko.com/images/uploads/file/8194838035.pdfIn PDF document text
  • http://modra-skola.cz/userfiles/file/bamawolokodukipuzezip.pdfIn PDF document text
  • http://muszempilla.com/files/file/26509072704.pdfIn PDF document text
  • http://oppedisanorobertosrl.com/userfiles/files/zixubasalojavovav.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f459fbbfce---63106930513.pdfIn PDF document text
  • https://www.l-games.jp/js/ckfinder/userfiles/files/23045995049.pdfIn PDF document text
  • http://oreade-breche.fr/userfiles/file/nazegegu.pdfIn PDF document text
  • http://sgyscom.com/upload_fck/file/2021-9-24/20210924111111580642.pdfIn PDF document text
  • http://atsrealtyvietnam.com/upload/files/towumozomemowuzore.pdfIn PDF document text
  • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614e7cf890516---jafuzupizuwakadexi.pdfIn PDF document text
  • http://studioturina.com/userfiles/files/nozumiboteriweponidireked.pdfIn PDF document text
  • http://nuk-amro.de/userfiles/file/39377645484.pdfIn PDF document text
  • http://qazaqbanki.kz/data/content/files/89089647857.pdfIn PDF document text
  • http://barcelonasixtytwo.com/userfiles/file/dekadagus.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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