Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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://kaptenhoki.org/contents/files/65894828837.pdf In PDF document text

  • http://sinoscaform.com/upload/ckimg/files/202109070628055016.pdfIn PDF document text
  • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147c940d25d0---noridigituxidima.pdfIn PDF document text
  • http://baheth24cars.com/ckfinder/userfiles/files/jisodelupomaro.pdfIn PDF document text
  • http://178.62.148.222:300/ckeditor/ckfinder/userfiles/files/13793104334.pdfPDF link annotation
  • http://eventologia.com/userfiles/files/68529588002.pdfIn PDF document text
  • https://atavio.ru/files/file/xomukamol.pdfIn PDF document text
  • https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/8bce9ddf8978092ba3061d65d4987377/42235483753.pdfIn PDF document text
  • http://artecgroupservices.com/imagenes/file/59986312967.pdfIn PDF document text
  • http://patriabrno.cz/userfiles/files/melufojapenugutipu.pdfIn PDF document text
  • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/dff1227c71c660bbda99e3041555a56d/94475797625.pdfIn PDF document text
  • https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/0ffcd8755b5e28cfea51585361af39b2/90461508023.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/29389526280.pdfIn PDF document text
  • http://www.look4job.gr/images/_user_na/file/toxemilovawolegeda.pdfIn PDF document text
  • https://hv2barrier.com/application/third_party/ckfinder/userfiles/files/29476252873.pdfIn PDF document text
  • https://livstyle.ro/home/livstyle/public_html/uploads/files/xidetovajakajosipiv.pdfIn PDF document text
  • http://bright-inter.com/file_media/file_image/file/31275609685.pdfIn PDF document text
  • https://ra7a7p-h3ba7.com/contents/files/tezenajazexugofev.pdfIn PDF document text
  • http://ozt.zielonetarasy-cieplice.pl/uploads/userfiles/files/mutevisarigizet.pdfIn PDF document text
  • https://1ar.sa/userfiles/file/lomepijevapaxumijexikuw.pdfIn PDF document text
  • http://flexinform.com/hirlevel/file/98295925157.pdfIn PDF document text
  • http://www.stemcellhairclinic.com/files/files/ginipixoz.pdfIn PDF document text
  • https://kimcert.net/E/file/metitowobapezas.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=bail+out+slangPDF 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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