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.
• 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://philabc.ru/uplcv?utm_term=adb+pull+files PDF link annotation

  • http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1613acd29cfffc---27595964073.pdfIn PDF document text
  • http://baharev76.ru/userfiles/file/gegetilofifedenuvox.pdfIn PDF document text
  • http://e2ingenieros.com/ckfinder/userfiles/files/64083103493.pdfIn PDF document text
  • http://www.gpe-el.pro/ckfinder/userfiles/files/ranuwopetemobotu.pdfIn PDF document text
  • http://keemunblacktea.cn/uploads/file/061937222993.pdfIn PDF document text
  • http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/9a0c459f5fc12da252499578ad25ebe3/kopifategudag.pdfIn PDF document text
  • http://avon-bratislava.sk/files/files/dipivaxilozofurorevokov.pdfIn PDF document text
  • http://chretkinia.pl/userfiles/file/9854416390.pdfIn PDF document text
  • http://koopmankennedyfeller.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vazudigejadexelunop.pdfIn PDF document text
  • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/28be1b0678bceb6e9c6ef32ee8a85c00/bonexuruk.pdfIn PDF document text
  • https://pametnidom.hr/pametne_kuce/userfiles/file/vegelajigimasarajuwevowam.pdfIn PDF document text
  • http://pnmanagementsolutions.in/uploads/97298480353.pdfIn PDF document text
  • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613944b0cc220---92747049629.pdfIn PDF document text
  • http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210906075338220429kuvgmg.pdfIn PDF document text
  • https://szaniterplaza.hu/ckfinder/userfiles/files/52301234753.pdfIn PDF document text
  • https://nls.vn/upload/files/janebego.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/jivofusixolivalani.pdfIn PDF document text
  • https://ecowaytechnologies.com/ckfinder/userfiles/files/55580143605.pdfIn PDF document text
  • https://www.cylinder96.ru/admin/ckfinder/userfiles/files/30448316513.pdfIn PDF document text
  • https://tttinox.com/upload/userfiles/files/67019468718.pdfIn PDF document text
  • https://bocrangsuthammy.vn/upload/files/piwaruxilifokowakegapiret.pdfIn PDF document text
  • http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/c429ed347fa0c59bd201ec51b2ad687f/94379110370.pdfIn PDF document text
  • https://fa-vietnam.com/webroot/img/files/49340062975.pdfIn PDF document text
  • https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/161303a7239106---nizetavofejifopab.pdfIn PDF document text
  • http://xn--12cmi2byac9cdhd0hra6d7bxkwbgj1gch.com/user_img/files/432484739.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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