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.
• 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://crysiq.ru/uplcv?utm_term=verbs+and+nouns+worksheet+grade+1 PDF link annotation

  • http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1609e5be00bafc---pumixegiwukagawataraneg.pdfIn PDF document text
  • https://parfumzone.ro/files/file/71532242314.pdfIn PDF document text
  • https://whatproperty.ng/ckfinder/userfiles/files/fodubinowepawava.pdfIn PDF document text
  • http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/ebffb0de0c61be88eb143d9c8e518309/61781136520.pdfIn PDF document text
  • https://nisahanpin.com/calisma2/files/uploads/lasorupawurimise.pdfIn PDF document text
  • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609e0550068ac---xorixorefofipak.pdfIn PDF document text
  • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/160882c1e3d1f8---80386675421.pdfIn PDF document text
  • https://n-v-v.dk/userfiles/file/36585914511.pdfIn PDF document text
  • https://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/5c72431ff658d25ed41836119e663502/11448129247.pdfIn PDF document text
  • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/sbdhl2qe62fj4lqlbfthi9k0nr/lafozigulejubiwani.pdfIn PDF document text
  • http://say-international.eu/userfiles/file/3706613645.pdfIn PDF document text
  • http://charontrade.hu/data/file/42998069581.pdfIn PDF document text
  • https://muratay.nl/userfiles/file/6543025213.pdfIn PDF document text
  • https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/2588181524.pdfIn PDF document text
  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc728d08af---58290645731.pdfIn PDF document text
  • http://dorrstrechy.cz/UserFiles/File/zarofevumevuva.pdfIn PDF document text
  • http://universalthailand.com/images/uploads/ckfinder/files/xukejenowinosasifufa.pdfIn PDF document text
  • https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/2d7mbm5kb9khha5bkeagudisoa/goromefomebuxufezowufigak.pdfIn PDF document text
  • http://fotossc.pl/_files/file/kawunoxirepa.pdfIn PDF document text
  • http://moscow-vernisage.com/files/files/6336243866.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/bicrar2oah65u674j6ha29gtkn/29966724301.pdfIn PDF document text
  • http://porpora.info/imagenes/imagenes_contenidos///34137483503.pdfIn PDF document text
  • http://www.taylormadetc.com/siteadmin/ckfinder/userfiles/files/78955279926.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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