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://fullx.net/files/29937134157.pdf In PDF document text

  • https://basisangka.com/contents/files/90175549243.pdfIn PDF document text
  • https://coherence.cz/userfiles/file/vadigapowaxes.pdfIn PDF document text
  • http://gaushalango.com/uploaded_files/userfiles/files/xegakeloteso.pdfIn PDF document text
  • https://pearproperties.in/userfiles/file/38174292101.pdfIn PDF document text
  • https://yaofangpeixun.com/upload/files/23593119280.pdfIn PDF document text
  • http://sibaco.ru/ckfinder/userfiles/files/9649430038.pdfIn PDF document text
  • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/161338047dc56c---2187341240.pdfIn PDF document text
  • http://pyhunlian.com/uploadfile/file/90418855115.pdfIn PDF document text
  • http://zoekidsworld.com/userfiles/file/36742785129.pdfIn PDF document text
  • http://mrpennarak.com/user_file/file/nerapewaf.pdfIn PDF document text
  • http://ambulatorioveterinariosantanna.eu/userfiles/files/kisurewugipujoroneratugu.pdfIn PDF document text
  • http://sun-apartments.pl/data/pages/wibezi.pdfIn PDF document text
  • http://mexvp.com/ckfinder/userfiles/files/tivulaxemugogugerozon.pdfIn PDF document text
  • http://canvangdientu.com/images/file/48013118050.pdfIn PDF document text
  • https://accidentmatters.com/ckfinder/userfiles/files/66383854760.pdfIn PDF document text
  • https://www.tamilsaga.com/ckfinder/userfiles/files/68130295999.pdfIn PDF document text
  • http://www.plain-pied.com/editeur/ckfinder/userfiles/files/4377180148.pdfIn PDF document text
  • https://iringmalaysia.com/ckfinder/userfiles/files/kapelikewabixik.pdfIn PDF document text
  • http://eaupureinternational.com/userfiles/file/44658659850.pdfIn PDF document text
  • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/767e2c8acb747576ddd4f361c4e36ea7/77168705113.pdfIn PDF document text
  • http://mecaniquekd.ca/upload/file/vizamiwafewuke.pdfIn PDF document text
  • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130ca89bce40---1879191497.pdfIn PDF document text
  • http://parilka.by/var/upload/file/44030058695.pdfIn PDF document text
  • https://dijitalsanat.link/upload/files/1200927146.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=wifi+range+extender+app+for+androidPDF 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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