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://projecthouse.bg/uploads/CKfinder/files/56660979581.pdf In PDF document text

  • http://sequirk.ie/userfiles/file/buwigusopugeta.pdfIn PDF document text
  • http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dc5491e994---birij.pdfIn PDF document text
  • http://grafordexstudents.com/clients/0/05/05b3dbe7dd9dc6f92b523d2b721f2ffd/File/wajakojokunanojaguvep.pdfIn PDF document text
  • http://www.me.ntou.edu.tw/ckfinder/userfiles/files/20210904_012356.pdfIn PDF document text
  • https://aspaeng.com/files/image/files/94661072794.pdfIn PDF document text
  • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f1520d7beb0---vijakelap.pdfIn PDF document text
  • https://luminex.pl/upload/file/62759614172.pdfIn PDF document text
  • http://abpaluso.com/upload/file/40621126472.pdfIn PDF document text
  • http://artdealer.vn/upload/fckimagesfile/0812281e655e62e6ab77088d8386efcb.pdfIn PDF document text
  • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1609c4fa6b320c---87202836621.pdfIn PDF document text
  • https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/9a8bc140edbb656d7f47518ebd18a8d4/35946138250.pdfIn PDF document text
  • https://livre-art.com/ckfinder/userfiles/files/17466693995.pdfIn PDF document text
  • http://15449010.com/FileData/ckfinder/files/20210810_9EC1464AFA10E4B1.pdfIn PDF document text
  • https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/ksds3ds6i46ca95a0il1r6747c/43826127667.pdfIn PDF document text
  • https://widepolymers.com/userfiles/file/bopuposa.pdfIn PDF document text
  • https://pathakpharma.in/singhania/downloads/file/63444933268.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/77344475977.pdfIn PDF document text
  • https://clinicaveterinariacabianca.it/file/43559008123.pdfIn PDF document text
  • https://alianzatours.com/imagenes/file/83319182325.pdfIn PDF document text
  • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/a4fc40a35e0be89d5dda5c934b2d00fc/novuzaxabojogutaxu.pdfIn PDF document text
  • https://topclassgardening.nl/images/file/gajezeguj.pdfIn PDF document text
  • http://africa-emergence2019.com/userfiles/file/nusawafetojizuvepibapu.pdfIn PDF document text
  • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a79813072da---rizixewelukufinet.pdfIn PDF document text
  • http://club-integra.ru/userfiles/file/zirelifixuwower.pdfIn PDF document text
  • http://industra.sk/userfiles/file/34634993322.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=physiologische+psychologie+carlson+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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