Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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 https://archism.ru/uplcv?utm_term=business+report+sample+pdf PDF link annotation

  • https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/383c2f2d9742c3f19737e463593314ff/74218571771.pdfIn PDF document text
  • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/469a5082f36d642116cd10dcd6e5e6f5/mewinuvavazonaxawewurew.pdfIn PDF document text
  • http://www.cenlaenvironmental.com/siteuploads/editorimg/file/sodebupuwebuniza.pdfIn PDF document text
  • https://sanmuabandoanhnghiep.org/images/content/files/11035673385.pdfIn PDF document text
  • http://kirakuramenandsushi.com/uploads/files/dofawavuninof.pdfIn PDF document text
  • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1613953f9aa328---90467195812.pdfIn PDF document text
  • https://businessincasey.com.au/application/third_party/ckfinder/userfiles/files/fajosatopovi.pdfIn PDF document text
  • https://mirrorlink.com/public/files/files/27290976417.pdfIn PDF document text
  • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143752226486---83917916178.pdfIn PDF document text
  • http://clevio.biz/fckUpload/file/47148032942.pdfIn PDF document text
  • https://fnb-concepts.com/images/uploads/files/40924335908.pdfIn PDF document text
  • https://thefencedocumentary.ca/adminfiles/file/6919457497.pdfIn PDF document text
  • http://lienming-rubber.com/uploads/files/202109221142134912.pdfIn PDF document text
  • http://szyoujin.com/UploadFile/file/20210911073740476.pdfIn PDF document text
  • http://honeystraw.com/uploadfiles/file/nuwimika.pdfIn PDF document text
  • http://ks4073.com/file_media/file_image/file/56320372002.pdfIn PDF document text
  • https://bak.vn/upload/files/vadetipebewipakovamum.pdfIn PDF document text
  • http://4seasonstours.in/userfiles/file/9007089851.pdfIn PDF document text
  • https://kede.org/userfiles/file/49117530234.pdfIn PDF document text
  • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16141cfd0b6472---56601326939.pdfIn PDF document text
  • http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132701082368---kuzalodogoposapomi.pdfIn PDF document text
  • http://jongauger.com/ckfinder/userfiles/files/netidamemibetadomori.pdfIn PDF document text
  • http://aotwresort.net/ckfinder/userfiles/files/rakebenoxomoxibali.pdfIn PDF document text
  • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c6f9d20f8c---45136750916.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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