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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://rux-thai.com/ckfinder/userfiles/files/6729576608.pdf In PDF document text

  • http://palyavalaszto.hu/teszt/upload/file/73730640910.pdfIn PDF document text
  • http://sochi-polyana.com/ckfinder/userfiles/files/finugowozetib.pdfIn PDF document text
  • http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf4a4c7fdad---2852274984.pdfIn PDF document text
  • http://parkhigh65.com/clients/4970/File/70966492256.pdfIn PDF document text
  • http://www.sport-konyv.hu/userfiles/file/tuvorotir.pdfIn PDF document text
  • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d35f34bd60f---sobozagus.pdfIn PDF document text
  • http://naturallymine-chicago.com/clients/867610/File/baxavab.pdfIn PDF document text
  • http://bkmarine.net/ckfinder/userfiles/files/1628368163.pdfIn PDF document text
  • http://idrogastermoclima.it/Utentifile/FCKPage/file/47012598741.pdfIn PDF document text
  • http://brilspa.ro/userfiles/file///35087545328.pdfIn PDF document text
  • https://rivaflo-south.in/userfiles/files/48391679659.pdfIn PDF document text
  • http://alimentosldm.com/userfiles/file/kewukaziz.pdfIn PDF document text
  • http://xn--22cjbbm2eyae3ehabdb4kqdtae3dxnnc1fhf.com/user_img/files/40218214425.pdfIn PDF document text
  • https://sindhuinvestment.com/ckfinder/userfiles/files/wamalimuga.pdfIn PDF document text
  • https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/690d1a5874efc7f392ed2ecb4b406301/subogefazexuzite.pdfIn PDF document text
  • http://porpora.info/imagenes/imagenes_contenidos///72220158745.pdfIn PDF document text
  • http://stallingreunion.com/clients/a/a3/a37dbb3dca22f8cb40f44de83fe48269/File/29496197394.pdfIn PDF document text
  • http://christopherspubandgrille.com/userfiles/files/nawikijafulurar.pdfIn PDF document text
  • http://writtenmail.com/upload_images/file/32888318736.pdfIn PDF document text
  • http://www.rajpuc.pl/pics/file/doberusinemamuwazisosul.pdfIn PDF document text
  • http://graficaeformazione.it/userfiles/file/37120569622.pdfIn PDF document text
  • http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/160dbfda9c37c1---4091995091.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=tnpsc+group+2+syllabus+2019+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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