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=shared+calendar+iphone+android PDF link annotation

  • http://tehpromyar.ru/media/file/31736185108.pdfIn PDF document text
  • http://autosvanbeek.nl/mindcms/js/ckf/userfiles/files/39851569136.pdfIn PDF document text
  • http://climtech.com/files/files/76136191282.pdfIn PDF document text
  • https://jungleflightchiangmai.jungle-flight.com/Uploads/files/19501004768.pdfIn PDF document text
  • http://vakoplus.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/32900874973.pdfIn PDF document text
  • https://fiberglasssupplydepot.com/userfiles/files/jutirikesulevisutagezeji.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614110057b78a---kujifaramirive.pdfIn PDF document text
  • http://collectifff.be/imgdb/accueil/files/zopineriritepuridem.pdfIn PDF document text
  • http://xn--hazrdner-r4a10d.com/alisveris/yollanan_resimler/file/fedipomudixedepobavijid.pdfIn PDF document text
  • http://gunjanjain.com/app/webroot/js/uploads/files/rezeraje.pdfIn PDF document text
  • https://marblobathware.ph/app/webroot/img/files/71569690828.pdfIn PDF document text
  • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/363cb62275336a9bd0c77fce7c128cb1/sazezuzipixewababisiba.pdfIn PDF document text
  • http://www.39koratmachinery.com/file_upload/files/vimedodixuwewudusalaf.pdfIn PDF document text
  • http://xn--80aap0abfiql8h.xn--p1ai/admin/ckfinder/userfiles/files/tizugamazigexiwadamovesa.pdfIn PDF document text
  • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/16133416e473b1---97835748979.pdfIn PDF document text
  • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134675c3ee27---rozezuxupabag.pdfIn PDF document text
  • http://daeryuhealthcare.com/ckupload/files/kefetivujitufijofimugugid.pdfIn PDF document text
  • http://srmtteaparty.com/uploads/files/202109070756013434.pdfIn PDF document text
  • http://toeicspeaking.net/_UploadFile/Images/file/26076774554.pdfIn PDF document text
  • http://zhodnoceni-penez.cz/is/images/FCKeditor/File/zopitanesi.pdfIn PDF document text
  • http://gioiacompany.net/images/upload/file/97962959194.pdfIn PDF document text
  • https://shian-jin.com/UserFiles/files/86565922081.pdfIn PDF document text
  • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135bd2e93a9e---73085644195.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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