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://synerhu.ru/uplcv?utm_term=android+11+volte+settings PDF link annotation

  • http://discus-rus.ru/upl/file/bilabozaf.pdfIn PDF document text
  • https://ceylanotel.com/firma/files/fomukezu.pdfIn PDF document text
  • http://av72-reklama.ru/userfiles/file/16314804430836a198b6174eecf02c.pdfIn PDF document text
  • http://mobilenmr.com/files/files/kipojapevegobidulal.pdfIn PDF document text
  • http://www.pataniforum.com/admin/jquery/ckfinder/userfiles/files/6794255589.pdfIn PDF document text
  • http://kim-clark.ru/files/file/topugarapopekokagejuwadex.pdfIn PDF document text
  • https://agriplan-rs.com/dados/ckfinder/files/rofulepuzekoduz.pdfIn PDF document text
  • http://espwireless.net/uploads/file/pubowiwibenadufenuten.pdfIn PDF document text
  • https://newchat.xyz/js/ckfinder/userfiles/files/romuxigejixubovaxijifir.pdfIn PDF document text
  • http://1utilaje.ro/mm/file/lutiwini.pdfIn PDF document text
  • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613158c661575---vojigixetosetofusexo.pdfIn PDF document text
  • http://haki.vn/uploads/files/73903815126.pdfIn PDF document text
  • https://ochronaskory.pl/pliki_user/File/76635048954.pdfIn PDF document text
  • https://eghamatyab.com/basefile/bainbookcom/files/71502328196.pdfIn PDF document text
  • http://ehomerealestate.org/images/file/99499969097.pdfIn PDF document text
  • https://www.gullyracing.it/admin/ckfinder/userfiles/files/7614559362.pdfIn PDF document text
  • http://xn----otbbfbbknchz.xn--p1ai/sadm_files/sexemun.pdfIn PDF document text
  • http://japan-railpass.info/images/blog/file/38995708247.pdfIn PDF document text
  • https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/40d34b879003ff53d89e4851d9014033/4970933656.pdfIn PDF document text
  • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/161322d83e2e81---faxipibebawubaxukegodele.pdfIn PDF document text
  • http://infinijewelry.com/userfiles/file/51336377166.pdfIn PDF document text
  • http://ladyvenus.it/userfiles/files/refagudasemej.pdfIn PDF document text
  • http://turskazka.ru/ckfinder/userfiles/files/28715169789.pdfIn PDF document text
  • http://baheth24aqari.com/ckfinder/userfiles/files/badogamalibap.pdfIn PDF document text
  • http://vkts.se/userfiles/file/taveja.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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