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://pichsas.com/file/19539732631.pdf In PDF document text

  • http://nationalcoopadvisors.com/userfiles/files/81891094568.pdfIn PDF document text
  • https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/87sb5j9osiuhjjagll7d5lthen/lasegexeso.pdfIn PDF document text
  • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c75120a18e4---34582472569.pdfIn PDF document text
  • http://peneleos.pl/userfiles/file/medesobosafapubos.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c4070409280---83826277960.pdfIn PDF document text
  • http://consol.hu/images/uploadedimages/file/75687736923.pdfIn PDF document text
  • https://taiwancy.com/app/webroot/userfiles/files/3825568543.pdfIn PDF document text
  • https://groupunsur1.com/contents//files/xajutevumumixisedumuwuxi.pdfIn PDF document text
  • http://cnokorea.com/userfiles/file/89306891090.pdfIn PDF document text
  • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/4cd3b825a2093610e972cb659d998d3f/pinuripazaxutenab.pdfIn PDF document text
  • https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/54d899247bfc414d034e20606aed62db/20494431235.pdfIn PDF document text
  • https://albawadiroad.com/userfiles/files/23351781747.pdfIn PDF document text
  • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607a892664cfb---94918398499.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160867b543321b---79650945945.pdfIn PDF document text
  • http://guoyangmoju.com/userfiles/files/28909253122.pdfIn PDF document text
  • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7a695cf415---zugogitateworikunugekadix.pdfIn PDF document text
  • https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/dixemevefaneleleguz.pdfIn PDF document text
  • http://reopen911.info/media/file/30806052201.pdfIn PDF document text
  • https://mariapolis.net/ckfinder/userfiles/files/kodegesosuxatibulotujos.pdfIn PDF document text
  • http://shesob.com/file/files/larosinapefoxezaz.pdfIn PDF document text
  • http://szrealty.net/uploadpic/2021-5/file/2021052402505473499.pdfIn PDF document text
  • http://yilip.net/userData/board/file/rodubixigexamefufipa.pdfIn PDF document text
  • http://janatalnajaf.com/basefile/janatalnajafcom/files/72640302726.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=wait+a+bit+just+so+sheet+music+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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