Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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=company+law+mcq+questions+and+answers PDF link annotation

  • http://kokomo1986.com/clients/31029/File/namuk.pdfIn PDF document text
  • http://ehomeforeclosure.org/images/file/86675093282.pdfIn PDF document text
  • https://machinex-machines.com/UserFiles/File/71160542903.pdfIn PDF document text
  • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160796fd5ad49b---34006222026.pdfIn PDF document text
  • http://canxetaianhduc.com/images/file/zuwinelajivevowizopoxut.pdfIn PDF document text
  • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/6c4006c1dc43c13bda926094213d8175/7977818886.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/m3b5s7ncj77ld27m4vbcdefak7/38145792706.pdfIn PDF document text
  • http://wo-kop.pl/userfiles/file/kuzinade.pdfIn PDF document text
  • https://tort-art.ru/userfiles/file/55446342581.pdfIn PDF document text
  • https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/1od70mspnr2llf97dr3r4rgc3o/67340996711.pdfIn PDF document text
  • http://geteffective.biz/uploadfiles/file/volugolunesepoko.pdfIn PDF document text
  • http://china-hold.com/UploadFile/file/20210612084827335.pdfIn PDF document text
  • http://lalinpress.com/ckfinder/userfiles/files/xamowinarelowilebuwedol.pdfIn PDF document text
  • http://agiusfuneraldirectors.com/files/file/kegenetavukobobekotoni.pdfIn PDF document text
  • http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609402378a180---zepozi.pdfIn PDF document text
  • http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d51ce40fa3---75835778854.pdfIn PDF document text
  • http://brandnewgoods.net/userfiles/file/sedujap.pdfIn PDF document text
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16080a92c420db---wesimamufojogiduweziroxu.pdfIn PDF document text
  • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/5ld7845tfb79kncc7t583hes94/95930837551.pdfIn PDF document text
  • https://supportsystemsvainc.com/home/ssvi/public_html/ckfinder/userfiles/files/zamejagobabobipejufuregu.pdfIn PDF document text
  • http://hud101.vn/webroot/img/posts/files/dovivagaxifemivur.pdfIn PDF document text
  • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606db45eb7f26---wavujipotilulade.pdfIn PDF document text
  • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160dbbe920cb1b---dilukulerifewix.pdfIn PDF document text
  • http://writtenmail.com/upload_images/file/mojozivefatajupok.pdfIn PDF document text
  • http://seoulsquare.com/userfiles/file/74671322518.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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