Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://chcial.ru/uplcv?utm_term=latest+prince+of+persia+game+for+pc PDF link annotation

  • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a34ed6fd5f---30191577383.pdfIn PDF document text
  • http://milwaukee.center/userfiles/file/33439656273.pdfIn PDF document text
  • https://urbanlivin.lu/userfiles/files/jewetosijesopabalesi.pdfIn PDF document text
  • https://iva-vietnam.com/userfiles/file/gikupifol.pdfIn PDF document text
  • https://chungcungoaigiao.vnpec.xyz/uploads/files/kovafexisif.pdfIn PDF document text
  • https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/cbfb47b8127f26061f5e5c7e2a2438c9/9609091324.pdfIn PDF document text
  • https://detskeihriska.eu/ckfinder/userfiles/files/53303244759.pdfIn PDF document text
  • http://autoscuolepintozzi.it/userfiles/files/13603319041.pdfIn PDF document text
  • http://phukhoabacninh.com/images/files/13724677589.pdfIn PDF document text
  • http://ozkayalartrans.com/userfiles/file/74303373402.pdfIn PDF document text
  • http://thoitranglani.com/upload/files/61033768750.pdfIn PDF document text
  • http://handgun.ee/media/file/nuxuxeni.pdfIn PDF document text
  • https://vpmemorial.net/images/file/petet.pdfIn PDF document text
  • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/3ff9de9986cf84cc2c6ebaa4f12c03bb/8585046724.pdfIn PDF document text
  • https://clickbox.ro/images/file/zifovabumipodoratilifuroj.pdfIn PDF document text
  • http://finalstage.biz/js/upload/files/65153962547.pdfIn PDF document text
  • http://kosmonautika.ee/ckfinder/userfiles/files/20108637323.pdfIn PDF document text
  • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/rpbmn1udt6gi8uop6hsu5558ij/44827292336.pdfIn PDF document text
  • http://malagi.pl/user-files/fck/file/fivugoxaxuke.pdfIn PDF document text
  • https://latrinquette.com/upload/editor/file/20745970719.pdfIn PDF document text
  • http://qdsenfeng.com/data/files/9506371176.pdfIn PDF document text
  • https://efficientinfocomm.com/ckfinder/userfiles/files/95300355383.pdfIn PDF document text
  • https://jxlmedu.com/file/files/20210912_040842.pdfIn PDF document text
  • http://saxonrt.hu/img/userfiles/files/jafizakazalokadekerada.pdfIn PDF document text
  • http://csc-028.com/userfiles/file/20210909055403_ngcfua.pdfIn PDF document text
  • https://jlgardner.org/home/jlg/public_html/ckfinder/userfiles/files/95435123200.pdfIn PDF document text
  • http://zenithmetals.com/files/17620767771.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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