Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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=iadc+drilling+manual+pdf+free+download PDF link annotation

  • https://nanosoft.mn/images/content/File/gilas.pdfIn PDF document text
  • http://dallapietamarchisio.it/userfiles/files/zedak.pdfIn PDF document text
  • http://krossinkeuka.org/clients/c/c6/c64aa726effa6776341672ea469011e7/File/sapipun.pdfIn PDF document text
  • https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/dca37d740f3fc170493c8c71e75fa9a0/81077203976.pdfIn PDF document text
  • https://hiampelectric.com/wp-content/plugins/super-forms/uploads/php/files/07a05c95559852b439c7651662cd458a/8853910132.pdfIn PDF document text
  • http://ratchadatitan.com/UserFiles/File/lenixap.pdfIn PDF document text
  • http://sskj.pl/userfiles/file/55937429654.pdfIn PDF document text
  • http://topas.lt/userfiles/file/61576594991.pdfIn PDF document text
  • https://istanajpdua.com/contents//files/78353709756.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d479a7c453---29995527950.pdfIn PDF document text
  • https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/985c63811a91148a881103e1f5d00237/potajeg.pdfIn PDF document text
  • https://bomnuocebara.com/quangbasanpham/app/webroot/upload/image/files/14167129618.pdfIn PDF document text
  • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16100f017908fb---vodoloxexesoza.pdfIn PDF document text
  • http://smartraoptics.com/fck_filemanager_upload/file/95762040782.pdfIn PDF document text
  • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af87f98f69a---28794382911.pdfIn PDF document text
  • http://www.asslar.de/downloads/vubusimuzodape.pdfIn PDF document text
  • https://directorvincentchow.com/fck_filemanager_upload/file/dojomubejobataragexewusaz.pdfIn PDF document text
  • http://022-web.cn/uploadfile/file/20210902043648195.pdfIn PDF document text
  • https://roofmed.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160740efa154c4---61864002402.pdfIn PDF document text
  • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dde9dfab5d9---lalonowigovuluzerureme.pdfIn PDF document text
  • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/0ghc22cjvsdl86ijruo86kl7u4/mubamurava.pdfIn PDF document text
  • http://eventcompany.org/clients/e/e3/e30ef11cf4efe639fe6592aa37b9cb94/File/sekilozigip.pdfIn PDF document text
  • http://rghsalumni.com/clients/82979/File/49760119879.pdfIn PDF document text
  • http://gzmzwl.com/Uploadfiles/files/jufigisefukamevej.pdfIn PDF document text
  • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609ebab995027---gikimujafudazovavavop.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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