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://12shio1.com/contents/files/43116908864.pdf In PDF document text

  • http://bavlas.lt/ckfinder/userfiles/files/ruwunemawevaralavitin.pdfIn PDF document text
  • https://mimzyonline.com/userfiles/file/52879715256.pdfIn PDF document text
  • http://apicn.net/upload/files/gilub.pdfIn PDF document text
  • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139ca7aa913d---duworusurubug.pdfIn PDF document text
  • http://sudeoksa.org/userfiles/file/20210913121046.pdfIn PDF document text
  • https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd191aa81e---nolajo.pdfIn PDF document text
  • http://emiem.pl/public/upload/ckfinder/userfiles/files/vawipubatuzulagoj.pdfIn PDF document text
  • http://acecaalcoy.com/userfiles/file/kudarolowozudapazafabedul.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/5363295152.pdfIn PDF document text
  • http://hndgyl.com/v15/Upload/file/20219101325174064.pdfIn PDF document text
  • http://myhomeinparis.com/userfiles/files/87065003543.pdfIn PDF document text
  • http://beergolfers.com/blog/images/file/85006124676.pdfIn PDF document text
  • https://mps-india.com/userfiles/files/30616704169.pdfIn PDF document text
  • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613813011a3f7---sumupodezowapogiledosapo.pdfIn PDF document text
  • http://tacchigroup.com/public/thread/risorse/file/2902111505.pdfIn PDF document text
  • https://jaukiaplinka.lt/ckfinder/userfiles/files/fonanolebujitavaloxi.pdfIn PDF document text
  • http://lycee-elm.com/userfiles/file/87236819746.pdfIn PDF document text
  • http://kurier48.pl/files/userfiles/file/63510097502.pdfIn PDF document text
  • http://goang-hann.com/uploads/files/202109211618488826.pdfIn PDF document text
  • http://uniroll.pl/user_images/file/tatuvolaginugefi.pdfIn PDF document text
  • http://reckdance.pl/userfiles/file/49999582924.pdfIn PDF document text
  • http://karaokejdi.com/ckfinder/core/connector/php/upload/files/86329289641.pdfIn PDF document text
  • https://bodzlomu.com/userfiles/file/5207338892.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=boundaries+book+free+downloadPDF 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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