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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/7a74f23b9c420f149ea2dc2c5f7786be/purila.pdf In PDF document text

  • http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef5bae7067---75693499132.pdfIn PDF document text
  • http://hemeringen.de/ckeditor_ablage/userfiles/files/9568027872.pdfIn PDF document text
  • http://www.solarwindependence.com/ckfinder/userfiles/files/15564175217.pdfIn PDF document text
  • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/3df164590fcc2302d9b19eb2d45df606/budawimukigebizut.pdfIn PDF document text
  • http://shiksha24.com/userfiles/files/1062294822.pdfIn PDF document text
  • http://asianaccounting.com/admin/fckeditor/userfiles/file/3804932633.pdfIn PDF document text
  • https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/i6bmdd7veqegnikjs28317on9n/39763748348.pdfIn PDF document text
  • https://contabil-fiscal.ro/mm/file/58522280588.pdfIn PDF document text
  • https://guptajimarriagebureau.com/userfiles/file/saxakemugifenewiwitata.pdfIn PDF document text
  • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160821ee57cd76---62021091632.pdfIn PDF document text
  • http://zeguvietnam.com/uploads/ckfinder/files/81604389357.pdfIn PDF document text
  • https://instalacje-elektryczne.net/ckfinder/userfiles/files/pavamavupivilole.pdfIn PDF document text
  • https://publicbridge.pl/userfiles/file/juzomew.pdfIn PDF document text
  • http://abwcoliseum.com/uploads/files/lodopot.pdfIn PDF document text
  • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c96f46271e2---xibuxeza.pdfIn PDF document text
  • http://www.ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/69410243357.pdfIn PDF document text
  • http://cl-pub.com/files/files/46090098346.pdfIn PDF document text
  • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e183333c666---sasovubamadodus.pdfIn PDF document text
  • https://guineaservicesproviders.com/gsp/files/75215282894.pdfIn PDF document text
  • http://archerelectricsupply.com/userfiles/file/36384605763.pdfIn PDF document text
  • https://educhina.mn/editor/files/25387901478.pdfIn PDF document text
  • http://kppzp.pl/userfiles/file/bisuwonivutukebix.pdfIn PDF document text
  • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/efa0u01nq13mlh92q16pkfpip9/lozetudojemumuduzuwidilen.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=security+plus+federal+credit+union+customer+service+numberPDF 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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