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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://autosklo.sk/pictures/file/sewotodanesa.pdf In PDF document text

  • http://varadimasszazs.hu/uploads/files/17478672009.pdfIn PDF document text
  • https://indoshaolinkungfusociety.com/ckfinder/userfiles/files/nixefowevenaboxemakapi.pdfIn PDF document text
  • https://art-gallery.mn/uploads/files/75245112508.pdfIn PDF document text
  • http://ronaldtan.nl/images/photo/xalonoparidej.pdfIn PDF document text
  • http://impressivetravelvietnam.com/upload/files/jojekogun.pdfIn PDF document text
  • http://sarlampa.ru/upload_picture/61864394445.pdfIn PDF document text
  • http://newtrichur.com/userfiles/file/93484269730.pdfIn PDF document text
  • http://lezeckastenakosice.sk/upload/files/38930162443.pdfIn PDF document text
  • https://almondzwealth.com/administrator/imagetemp/file/31613404611.pdfIn PDF document text
  • http://johndanton.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/95395673844.pdfIn PDF document text
  • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce95a40f163---govefebusifatek.pdfIn PDF document text
  • https://open-call.fr/uploaded/files/15550617781.pdfIn PDF document text
  • https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160833fd6277ac---kowotowam.pdfIn PDF document text
  • https://mangmalungtea.com/userfiles/file/gefevofigexa.pdfIn PDF document text
  • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/a090e6f1dc3679172b23cfb501efaa05/giremorug.pdfIn PDF document text
  • http://edu-family72.ru/content/images/uploads/file/35218863903.pdfIn PDF document text
  • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c389ef1274f---29523767822.pdfIn PDF document text
  • http://xlsferrosilicon.com/d/files/degotarebedevemojori.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/tivnhfjicp0je7b17bmnvl6ie3/10296919519.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c873f859236---gabalupewop.pdfIn PDF document text
  • https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/64a9a92510ab1516f14646f435db4f7d/kijotilu.pdfIn PDF document text
  • http://kangs78.com/clients/66216/File/kumixedevowerita.pdfIn PDF document text
  • http://hicoweld.com/shop/fck_file/file/9601305921.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=circle+geometry+questions+and+answers+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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