Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://archism.ru/uplcv?utm_term=cool+ringing+tones+for+android PDF link annotation

  • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16144bda948bd8---63635481317.pdfIn PDF document text
  • http://elpijisystem.com/file/49037841892.pdfIn PDF document text
  • http://siblom.ru/files/upload/file/80659469031.pdfIn PDF document text
  • https://cplastik.net/data/cms/file/62411503198.pdfIn PDF document text
  • https://gulfcans.com/home/madarmun/public_html/gulfcans/images/bulk_images/files/77750030718.pdfIn PDF document text
  • http://kgmda.com/upload/files/40630839633.pdfIn PDF document text
  • http://abwplazaview.com/uploads/files/tasovovufowet.pdfIn PDF document text
  • https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/48076b4c225c4c9e6e93e7c5bcff90e2/227122762.pdfIn PDF document text
  • https://chilegastronomia.cl/uploads/userfiles/files/gogowapedem.pdfIn PDF document text
  • http://www.brickchamber.com/ckfinder/userfiles/files/84121823131.pdfIn PDF document text
  • http://thriftstorewebsites.net/flash/thriftstorewebsites.net/file/92759593170.pdfIn PDF document text
  • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130217f406e5---94918790581.pdfIn PDF document text
  • https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161421e132cfeb---61923914752.pdfIn PDF document text
  • https://paradigma.bg/uf/file/nufatelekotamep.pdfIn PDF document text
  • http://konakelektrik.com/userfiles/file/41173816520.pdfIn PDF document text
  • https://rux-thai.com/ckfinder/userfiles/files/57502001507.pdfIn PDF document text
  • http://mellorymotors.ru/admin/ckfinder/userfiles/files/zedulotukabaga.pdfIn PDF document text
  • http://instalater-macecek.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/jujupixusemobasapukibit.pdfIn PDF document text
  • http://albarossa.jp/js/upload/files/12762384902.pdfIn PDF document text
  • http://newo.ru/files/files/11637861078.pdfIn PDF document text
  • http://hyeminshop.com/DATA/files/47020527178.pdfIn PDF document text
  • https://iwanbim.com/userfiles/files/tedujixobatu.pdfIn PDF document text
  • http://labonscafe.com/userfiles/46983294062.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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