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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://synerhu.ru/uplcv?utm_term=how+to+clear+app+cache+in+moto+g5+plus PDF link annotation

  • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1613e62dda6e4c---53555924626.pdfIn PDF document text
  • https://karpzbeldowa.pl/uploads/userfiles/files/24915700865.pdfIn PDF document text
  • http://ad.ditroinfotech.com/laportal/ckeditor-ckfinder-integration/uploads/files/11948530645.pdfIn PDF document text
  • https://onderdurdu.com/upload/ckfinder/files/57729729731.pdfIn PDF document text
  • https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/16140eec54a592---57075671197.pdfIn PDF document text
  • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/apc70lc4oo8jvhncip5v3i9a52/69535441170.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/fivoxubuxarazalofobopa.pdfIn PDF document text
  • https://unitedfightalliance.com/ckfinder/userfiles/files/jukigolimagot.pdfIn PDF document text
  • https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/o4qbttppcl3knus65s8qsbpp5n/guvanapalujo.pdfIn PDF document text
  • http://xn--b1afklwjc5g.xn--p1ai/ckfinder/userfiles/files/15585169607.pdfIn PDF document text
  • https://varida-tech.com/ckfinder/userfiles/files/29832281183.pdfIn PDF document text
  • http://elosc.com/upFile/file///ITX202109181344513298.pdfIn PDF document text
  • https://oxfordjsr.com/userfiles/file/kuxukujedubipavirok.pdfIn PDF document text
  • https://nikosdimos.gr/userfiles/file/79746079773.pdfIn PDF document text
  • http://findusafranchise.com/files/files/97693751726.pdfIn PDF document text
  • https://photojet.bg/userfiles/file/moberagotaliwemajixibijo.pdfIn PDF document text
  • https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613443827ff37---gebisezimuzapopi.pdfIn PDF document text
  • http://boonfagrandhome.com/user_img/files/taxonenubevakarivume.pdfIn PDF document text
  • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/161312ca91bf85---sedujamudip.pdfIn PDF document text
  • http://inarchengineering.it/userfiles/files/40479394655.pdfIn PDF document text
  • http://gruaszarate.com/ckfinder/userfiles/files/60089576934.pdfIn PDF document text
  • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16134dcca068d9---28871908586.pdfIn PDF document text
  • http://altadirezione-consulting.it/userfiles/files/20160707991.pdfIn PDF document text
  • 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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