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://oniceh.ru/uplcv?utm_term=interior+designing+app+for+android PDF link annotation

  • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/aa20ce5b941b873e3f437c206409d4f0/71899982536.pdfIn PDF document text
  • https://kozhikodedeaf.org/admin/my_files/file/piwirodaberom.pdfIn PDF document text
  • http://beastyenergy.com/userfiles/file/fuxipanaxepibinatoja.pdfIn PDF document text
  • http://uro-medical.pl/zdjecia/fotki/file/39209866069.pdfIn PDF document text
  • http://cameralehiep.com/hinhanh_fckeditor/file/nafiwixovelinar.pdfIn PDF document text
  • http://idevicesplus.nl/app/webroot/files/userfiles/files/nufazalak.pdfIn PDF document text
  • http://profitoolinfo.ru/ckfinder/userfiles/files/39271846691.pdfIn PDF document text
  • https://aristi-trap.com/upload/users/files/18754705765.pdfIn PDF document text
  • https://manpowernepal.net/ckfinder/userfiles/files/52242219894.pdfIn PDF document text
  • http://precedent.by/_newsite/images_from_html_editor/file/kasarewedorugaxef.pdfIn PDF document text
  • http://fujieshubao.com/zk/UploadFile/file/2021091117575573499.pdfIn PDF document text
  • http://belloverde.net/emailer/file/kolezukaragesu.pdfIn PDF document text
  • http://ladyqueen.it/userfiles/files/sobul.pdfIn PDF document text
  • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16136dc1b42706---57823528635.pdfIn PDF document text
  • http://knipia.com/userfiles/file/27418700442.pdfIn PDF document text
  • http://jjsgreatescape.com/uploaded_files/userfiles/files/vuvixigam.pdfIn PDF document text
  • http://nwatchonline.info/userfiles/file/90782746129.pdfIn PDF document text
  • http://khyljg.com/uploadfiles/files/91831470656.pdfIn PDF document text
  • https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/32798745739.pdfIn PDF document text
  • https://landi-bg.com/images/file/38411932308.pdfIn PDF document text
  • https://maxflowfans.com/userfiles/file/moner.pdfIn PDF document text
  • https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/5ee0d0b839c32f1ac90ced89db8f6bf6/tagovubopapoxuzetuderatow.pdfIn PDF document text
  • http://sapthagireesyathra.com/userfiles/file/71554466955.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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