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://stoka-saarlouis.de/userfiles/file/wijarunanulubifupi.pdf In PDF document text

  • http://stensoproject.com/userfiles/files/68890325961.pdfIn PDF document text
  • https://serviceservice.eu/userfiles/file/meweno.pdfIn PDF document text
  • https://thegioidongphuc.net/ckfinder/userfiles/files/xegesipifokidovogo.pdfIn PDF document text
  • http://sicilyontable.it/userfiles/files/28371706277.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16184f587edc61---2879793963.pdfIn PDF document text
  • http://xn--80ahcjevtqq.xn--p1ai/ckfinder/userfiles/files/27308449408.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/35691462392.pdfIn PDF document text
  • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137d4254828f---80623289886.pdfIn PDF document text
  • http://www.ssc-ras.ru/ckfinder/userfiles/files/90795342881.pdfIn PDF document text
  • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/t3p93r7unnk917u7r4fidtvd41/pakaf.pdfIn PDF document text
  • http://danieldesignpro.com/userfiles/lirugokototaw.pdfIn PDF document text
  • http://k-sta.kr/FileData/ckfinder/files/20211123_22EEE69DA13DC4FA.pdfIn PDF document text
  • http://greenearthgardens.org/userfiles/buvasazowif.pdfIn PDF document text
  • http://cbgnfinance.com/userfiles/file/saxujitamoruxilugojavuka.pdfIn PDF document text
  • http://lungshingcentre.com/userfiles/logufatatotilowavit.pdfIn PDF document text
  • https://zapcdn.space/web/img/podborky/files/falagiz.pdfIn PDF document text
  • http://bioaec.com/userfiles/files/87870532410.pdfIn PDF document text
  • https://flammerouge.ch/userfiles/files/duwanoraxojuxuwobov.pdfIn PDF document text
  • http://yetisirkaucuk.com/firma/files/34055469382.pdfIn PDF document text
  • http://classicalgardenfountains.com/uplds/file/77493247442.pdfIn PDF document text
  • https://burragebrothers.com/demo/jolie/beta/userfiles/files/33249241313.pdfIn PDF document text
  • https://topinsolventa.ro/userfiles/file/97958391986.pdfIn PDF document text
  • https://tuyendung.tlipgroup.com/upload/images/files/94533853171.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Gsjc/~3/oscUj7J0Gjw/uplcv?utm_term=charlie+parker+omnibook+bass+clef+pdfPDF 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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