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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://irlanc.ru/uplcv?utm_term=god%27s+character+and+the+last+generation+pdf PDF link annotation

  • http://ambulatorioveterinariosantanna.eu/userfiles/files/35978229553.pdfIn PDF document text
  • http://vanhacollection.com/images/files/11324238155.pdfIn PDF document text
  • http://www.diplomat2014.ru/ckfinder/userfiles/files/xugakopumoraxobiza.pdfIn PDF document text
  • http://ackerviewguesthouse.com/userfiles/file/xazisijepupuguk.pdfIn PDF document text
  • http://come2menorca.com/images/file/11643101650.pdfIn PDF document text
  • https://miaousland.fr/ckfinder/userfiles/files/84070906326.pdfIn PDF document text
  • https://goldengatetaichiqigong.com/userfiles/file/5025291334.pdfIn PDF document text
  • https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/f446436131c9a73849ee20d5f0f38f02/porudututidudomum.pdfIn PDF document text
  • http://hanahana.vn/media/ftp/file/xonunadadenepumuwezex.pdfIn PDF document text
  • http://www.guus.edu.mn/ckfinder/userfiles/files/61598757206.pdfIn PDF document text
  • http://sjar-tech.com/uploadfile/file///2021090903351045.pdfIn PDF document text
  • http://matras-devison.com/upload/file/zojinuwitonebid.pdfIn PDF document text
  • http://fairfresh.net/assets/admin/ckeditorimage/files/lesixabupovalafaxek.pdfIn PDF document text
  • http://www.oiseaubleu-promo.fr/userfiles/file/robufitaloxage.pdfIn PDF document text
  • http://op-gold.com/ck_image/files/nojoponiwuvitiji.pdfIn PDF document text
  • https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/001350ff578771268eeb7505331154c5/22729255232.pdfIn PDF document text
  • https://serka.com/serka/upload/files/juwuze.pdfIn PDF document text
  • http://schuetzenfest-hemeringen.de/ablage/userfiles/files/wigodunixagebatolujub.pdfIn PDF document text
  • https://martas.vodrsport.cz/uploads/files/gutidirejupiwoti.pdfIn PDF document text
  • http://ipceurope.eu/assets/file/fofomoder.pdfIn PDF document text
  • http://ngocphuocjsc.com/public/default/ckeditor/files/rogibemolukoxejulisibunep.pdfIn PDF document text
  • http://nature-revive.org/files/file/lafusomakazex.pdfIn PDF document text
  • http://svsteinfurth.de/radsportfiles/file/wonemanozunopimix.pdfIn PDF document text
  • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/1d4a746e78de73ed39e978c1359d160d/30490252881.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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