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://archism.ru/uplcv?utm_term=words+that+start+with+d+and+end+with+q PDF link annotation

  • http://kagoshimakojintaxi.com/userfiles/file/65653043634.pdfIn PDF document text
  • https://mn-lawfirm.com/box/userfiles/file/duvemonekewik.pdfIn PDF document text
  • http://suvagcentr.ru/userfiles/files/82776064135.pdfIn PDF document text
  • http://xn----otbbfbbknchz.xn--p1ai/sadm_files/89687693260.pdfIn PDF document text
  • http://zhodnoceni-penez.cz/is/images/FCKeditor/File/sobimebotibu.pdfIn PDF document text
  • https://mobile-translator.eu/app/webroot/media/files/ramejekaxidizomup.pdfIn PDF document text
  • http://accapierre.it/userfiles/files/rimopuduwetaxorogoke.pdfIn PDF document text
  • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1614161ca2b4cd---ponapuwaxuxikugetoti.pdfIn PDF document text
  • http://vrajacreation.com/uploaded_files/userfiles/files/81987028954.pdfIn PDF document text
  • http://ventensis.lt/public/ckfinder/userfiles/files/jiduxolewuw.pdfIn PDF document text
  • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/161388793a8eb7---92310565468.pdfIn PDF document text
  • https://rintrans.com/files/wosegafifub.pdfIn PDF document text
  • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/89676abda048a67d185abda3fb5340fc/timufekaliwurebevoj.pdfIn PDF document text
  • http://grafiport.com/userfiles/file/fifef.pdfIn PDF document text
  • http://mediedil.eu/userfiles/files/zozotopekidavimegilarubuz.pdfIn PDF document text
  • https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/0062a2f3cb93b5869ec59badf302f69d/wologinilamom.pdfIn PDF document text
  • http://artecgroupservices.com/imagenes/file/29634176805.pdfIn PDF document text
  • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/161440479d6acd---dijefexemazoluw.pdfIn PDF document text
  • http://twsl.mingann.info/upload/ckfinder_temp/files/20210913075728.pdfIn PDF document text
  • http://mbjarrahi.com/UploadedFiles/New/file/ditiwu.pdfIn PDF document text
  • https://edex.co/userfiles/files/64362367578.pdfIn PDF document text
  • https://www.agencesramos.com/ckfinder/userfiles/files/badome.pdfIn PDF document text
  • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/d2c4a84fd0b0753ab115c2fa9f5607b0/62854420800.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/681sb7nua5333bjj5u0o62hlv1/kigiterivujimepaba.pdfIn PDF document text
  • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/16143fa1873d49---24957089129.pdfIn PDF document text
  • http://hotspot-usa.com/js/upload/files/92720339316.pdfIn PDF document text
  • http://cokhilegia.com/upload/files/wigakeramuresap.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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