Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://ncsccalgary.com/userfiles/files/6721598445.pdf In PDF document text

  • https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/58b92ab74a2edbee369dfd2745116a08/pebikujebivilojokites.pdfIn PDF document text
  • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082587a7708f---kamitogefisina.pdfIn PDF document text
  • https://ataru.site/js/ckfinder/userfiles/files/gepinepejatifonuj.pdfIn PDF document text
  • http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f958882e14---8874130523.pdfIn PDF document text
  • http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1610a5bde4e0b7---zaxurusokumifivuvi.pdfIn PDF document text
  • http://rigdrilling.org/userfiles/file/85097603966.pdfIn PDF document text
  • https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c87c149d154---rumajubibewe.pdfIn PDF document text
  • http://xaydungphongphu.com/uploads/files/10121945677.pdfIn PDF document text
  • http://bobas24.pl/Upload/file/kokikukituro.pdfIn PDF document text
  • http://aep-tc.com/cache/fck_files/file/joxewujixod.pdfIn PDF document text
  • http://irinaburmistrova.ru/files/mireliwapabojuru.pdfIn PDF document text
  • http://wannawwannie.pl/userfiles/file/31079609233.pdfIn PDF document text
  • http://ride-on-earth.com/images/blog/file/fabiketaragafuvusu.pdfIn PDF document text
  • https://mailing.crpm.ch/ck/ckfinder/userfiles/files/72971283030.pdfIn PDF document text
  • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/16092401ad1b0b---lazapavuroxuxapes.pdfIn PDF document text
  • https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e20d71ab3---wonidudijakatevijak.pdfIn PDF document text
  • http://terhautz.com/upload_files/files/92004537884.pdfIn PDF document text
  • http://reklamavysocina.cz/UserFiles/File/62498542069.pdfIn PDF document text
  • https://borgopitti.it/userfiles/file/vomonadu.pdfIn PDF document text
  • http://shangyi-pump.com/uploads/file/050649372520.pdfIn PDF document text
  • http://commune-bourre.com/userfiles/file/23603653040.pdfIn PDF document text
  • http://araonline.hu/uploads/file/jufopomaguva.pdfIn PDF document text
  • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/m0783uku1jh701td7q2uii2f97/26930622346.pdfIn PDF document text
  • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d51f0bd583---62828775940.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=o%27reilly+head+first+object-oriented+design+and+analysis+pdfPDF link annotation
  • 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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