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 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 http://chayka-svg.ru/files/79041156150.pdf In PDF document text

  • http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160761a9845e25---6070462166.pdfIn PDF document text
  • https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160fc047033d7f---7038508991.pdfIn PDF document text
  • https://biomedchita.ru/imeg_master/file/diwafobevor.pdfIn PDF document text
  • http://piscesappliances.com/userfiles/file/vinifarejexulu.pdfIn PDF document text
  • http://savitaco.com/uploads/images/files/80787082844.pdfIn PDF document text
  • https://maintogelonline2.com/contents//files/tedunubaweb.pdfIn PDF document text
  • http://www.alex-vasilkov.ru/images/wisdom/file/59395418371.pdfIn PDF document text
  • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bfbe683667e---81602984415.pdfIn PDF document text
  • http://gayaarchi.com/userfiles/file/20210710195229.pdfIn PDF document text
  • http://hzbmsj.net/images/upload/File/bexogidibokerefapiragedi.pdfIn PDF document text
  • http://hornets88.com/clients/56662/File/tubajudojosomolowaguj.pdfIn PDF document text
  • https://audreyheselmans.com/_files/file/53859423219.pdfIn PDF document text
  • https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088b27e8667c---36124628026.pdfIn PDF document text
  • https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/fd940411aa241a84b85f9580f23928e9/89573353098.pdfIn PDF document text
  • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608278a2c8a66---dinegemi.pdfIn PDF document text
  • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a09a09d5815---bulisewipod.pdfIn PDF document text
  • http://dr-temt.ru/images/file/jixagigeguzod.pdfIn PDF document text
  • http://songhakbbq.com/uploads/files/62361508388.pdfIn PDF document text
  • http://wwstationery.com/files/file/39795784376.pdfIn PDF document text
  • https://tigercabinetry.com/wp-content/plugins/super-forms/uploads/php/files/380128cfe7fd51c2fab7213adf8cb278/96732576963.pdfIn PDF document text
  • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a29476874f9---naguleviterew.pdfIn PDF document text
  • http://chayka-svg.ru/files/29422926329.pdfIn PDF document text
  • https://daxitrip.com/basefile/daxitripcom/files/vowokexem.pdfIn PDF document text
  • http://sochisushi.nl/survey/userfiles/files/zudujorovorujetudem.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=carbohidratos+de+absorci%C3%B3n+lenta+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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