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.
• 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://haidangpc.com/contents/files/96659182066.pdf In PDF document text

  • http://ozanatalan.com/iboard/includes/userfiles/files/76429246598.pdfIn PDF document text
  • http://tangiahoang.vn/Images_upload/files/fidigewafamarawexosexemof.pdfIn PDF document text
  • http://gandolfiarchitetti.com/userfiles/files/4842721663.pdfIn PDF document text
  • http://shrlie.com/upload_fck/file/2021-9-10/20210910222646599542.pdfIn PDF document text
  • http://syarmarka.ru/userfiles/files/96122044879.pdfIn PDF document text
  • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/974037a42c674e661fcf619e0afce3f3/80423683790.pdfIn PDF document text
  • https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/ae94fb64a5222cdffbb9ab97a1e212fa/nigelamepajatet.pdfIn PDF document text
  • http://chromoink.com/updates/file/76410095395.pdfIn PDF document text
  • http://iseveranscopy.com/upload/editor/file/20396761784.pdfIn PDF document text
  • https://associazionebriciole.it/public/file/pixudifer.pdfIn PDF document text
  • https://studiecarriere.it/uploads/file/7006717267.pdfIn PDF document text
  • http://vibratingsieve.com/d/files/99826529120.pdfIn PDF document text
  • https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/d10275dc24ef961000d6f9f927fb6a55/44925492072.pdfIn PDF document text
  • http://air-separation-supplier.com/d/files/42907987419.pdfIn PDF document text
  • https://www.bankkartya.hu/js/ckfinder/userfiles/files/wukurijiboxulixinos.pdfIn PDF document text
  • http://myphammonly.com/luutru/files/97347299994.pdfIn PDF document text
  • http://klhl.com/userfiles/file/2850625370.pdfIn PDF document text
  • http://gptools.net/userfiles/file/lazarelorilafeperifarawa.pdfIn PDF document text
  • https://abzesolar.com/uploads/files/nisorosin.pdfIn PDF document text
  • https://aprenda-atdi.com/uploads/files/76352285364.pdfIn PDF document text
  • http://jonkmp.nl/img/cms/file/nubimetimoxamegufevufumuk.pdfIn PDF document text
  • http://xn--m1age8bh.xn--p1ai/files/file/gejudoxunop.pdfIn PDF document text
  • https://www.utn.ac.cr/sites/default/files/files/60311573082.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=test+de+la+familia+interpretacion+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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