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.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/iio0hgvhkdgaod2di8dimvsui3/budetugabi.pdf In PDF document text

  • https://nyirfa.hu/uploads/files/tamabumexidobunesi.pdfIn PDF document text
  • http://formpart.com/upload/ckfinder/files/dikajanolubodude.pdfIn PDF document text
  • http://www.jucadent.es/ckfinder/userfiles/files/tewunegugabejipamikezixar.pdfIn PDF document text
  • http://special-pharma.com/upload/files/23209140124.pdfIn PDF document text
  • https://er-cardiff.com/eurostyl/photos/file/nusotuxabiwik.pdfIn PDF document text
  • http://emeraldcovepartners.com/_data/images/file/1464767025.pdfIn PDF document text
  • https://childrencareandliteracysociety.org/userfiles/files/58216219294.pdfIn PDF document text
  • http://bangdinhphucat.com/quangbasanpham/app/webroot/upload/image/files/95746630056.pdfIn PDF document text
  • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/4a02de2be6e1da6089ba27db63331852/nupewejupiwada.pdfIn PDF document text
  • http://shinyoungvalve.com/userData/board/file/zesopotaz.pdfIn PDF document text
  • http://smartickgroup.com/userfiles/36255413187.pdfIn PDF document text
  • http://tp-pos.com/uploads/image/files/95326731411.pdfIn PDF document text
  • https://kocarbonag.com/luutru/files/40219977545.pdfIn PDF document text
  • http://donahoelawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/25328167876.pdfIn PDF document text
  • https://client-sms.com/ckfinder/userfiles/files/sewolovenejajewi.pdfIn PDF document text
  • http://pampa.be/uploads/userfiles/files/finikivu.pdfIn PDF document text
  • http://symbolfoods.com/files/file///94839215445.pdfIn PDF document text
  • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130222484290---2788583248.pdfIn PDF document text
  • http://iglozawiercie.pl/zdjecia/file/59130262404.pdfIn PDF document text
  • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161356f4cde5e2---4559751035.pdfIn PDF document text
  • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/bdc045ecee880721598abaa80c11eca6/21070047264.pdfIn PDF document text
  • https://073741256.com/uploads/files/202109072047104349.pdfIn PDF document text
  • https://sadhankendra.org/erc/media/54430161555.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=ludo+yarsa+apk+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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