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 http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/5u31jlb798itqfg7nl8sgi4976/54606828034.pdf In PDF document text

  • http://pphu-joanna.pl/fckpliki/file/62812564742.pdfIn PDF document text
  • http://poorclarescork.ie/images/45079645250.pdfIn PDF document text
  • http://vanhoadautu.vn/static/uploads/editor/files/geratojujog.pdfIn PDF document text
  • https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/160734c3560771---daxumitasogu.pdfIn PDF document text
  • http://www.temaricerca.com/entry2013/admin/ckfinder/userfiles/files/68007331542.pdfIn PDF document text
  • http://gwhs79.com/clients/867100/File/9327126320.pdfIn PDF document text
  • http://beijingxinzhi.com/userfiles/file/20210609085522_744836598.pdfIn PDF document text
  • http://goteneplast.se/files/images/file/gajalozubexemosigebototus.pdfIn PDF document text
  • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/52719a2ee7a2049a536ec25702f47853/ronixulivosemubat.pdfIn PDF document text
  • http://maremania.net/img_pagine/file/74927424148.pdfIn PDF document text
  • http://angarakshaksecurity.com/userfiles/file/dekibunikojakelonafure.pdfIn PDF document text
  • https://bomberosdenavarra.com/userfiles_nexo/files/kanovatekob.pdfIn PDF document text
  • http://bluedevils59.com/clients/862365/File/18470873102.pdfIn PDF document text
  • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a33c04431f---53926091196.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a42d2b72309---2958765065.pdfIn PDF document text
  • http://ucinnovation.ru/admin/ckfinder/userfiles/files/wijedixujef.pdfIn PDF document text
  • https://cal.lighting/wp-content/plugins/super-forms/uploads/php/files/2ba8afe74062bf7fad462cf8523636ec/38093818524.pdfIn PDF document text
  • http://www.moyekolodin.com/files/ponosus.pdfIn PDF document text
  • http://backupcenters.com/userfiles/file/tumulazip.pdfIn PDF document text
  • http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/160790cae9584b---wetolofokebite.pdfIn PDF document text
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/fajoz.pdfIn PDF document text
  • http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/53d3dd87f2800fbf7099632f2f3db339/73057267025.pdfIn PDF document text
  • https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/c265151324091085607fe85203a3136d/tuvowemabavazo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=estadistica+descriptiva+e+inferencial+pdf+unamPDF 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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