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
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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://krisoc.ru/uplcv?utm_term=pop+slots+free+vegas+casino+slot+machine+games PDF link annotation

  • http://kenshopvn.com/uploads/files/vinodotogelebejezugevu.pdfIn PDF document text
  • http://xn--zb0by3yusal20ak5lcidnwigi.com/ckfinder/userfiles/files/1631774642.pdfIn PDF document text
  • https://ooo-kenk.ru/userfiles/file/dufewuk.pdfIn PDF document text
  • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614309f83ba3c---47142517507.pdfIn PDF document text
  • http://carlaschroyen.com/content_docs/5678788821.pdfIn PDF document text
  • http://residenceraffaellotorino.com/userfiles/files/wibevesudufekelinuku.pdfIn PDF document text
  • https://its-bulgaria.bg/files/file/71349742212.pdfIn PDF document text
  • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1614680ca4b0e8---9758529537.pdfIn PDF document text
  • http://laduses.nl/image/file/30458688445.pdfIn PDF document text
  • https://tedvandergulik.nl/userimages/file/punifo.pdfIn PDF document text
  • http://jagodkaprzedszkole.pl/userfiles/file/71001982941.pdfIn PDF document text
  • http://jedwines.com/cmsCart/upload/file/lizomoreritase.pdfIn PDF document text
  • https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/54ffb587952908dfe3aef1cc158b15f3/pufaweberisopijus.pdfIn PDF document text
  • https://www.hippocratio.gr/ckfinder/userfiles/files/81729209949.pdfIn PDF document text
  • https://delta-relay.be/userfiles/file/87168616067.pdfIn PDF document text
  • http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/tozegekane.pdfIn PDF document text
  • http://isagenixmakessense.com/ckfinder/userfiles/files/voboxeforifemufepulas.pdfIn PDF document text
  • https://majubesar.net/contents/files/wozomirof.pdfIn PDF document text
  • http://liveisagenix.com/ckfinder/userfiles/files/roserojuvagux.pdfIn PDF document text
  • http://kolbiko.com/images/uploads/file/siwapabanigetikulepatelu.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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