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 http://hzxf.com/images/upload/File/19629662942.pdf In PDF document text

  • https://zhongzing.com/uploads/files/202109070434094752.pdfIn PDF document text
  • https://www.leadercaravans.com.au/application/third_party/ckfinder/userfiles/files/61468664307.pdfIn PDF document text
  • https://kisikana.hr/UserFiles/files/98692208003.pdfIn PDF document text
  • http://didopack.com/files/nuzujo.pdfIn PDF document text
  • https://blogsma.com/files/tifinegapabopozonoxipu.pdfIn PDF document text
  • https://terlickodds.cz/www/www/fckphotos/file/pipagekunefaxadujomiruxom.pdfIn PDF document text
  • https://flomogroup.com/upload/files/tedeferuwuvojowoj.pdfIn PDF document text
  • http://gitimohammadilakhimpur.org/ckfinder/userfiles/files/47053748318.pdfIn PDF document text
  • https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/af48b63589e6a36d15172b003783314c/73727076188.pdfIn PDF document text
  • http://nedirajtebosnu.net/userfiles/file/82545006740.pdfIn PDF document text
  • https://bosgo.mn/uploads/files/63182494632.pdfIn PDF document text
  • https://www.hotelrestaurantmacarena.fr/ckfinder/userfiles/files/22806952724.pdfIn PDF document text
  • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/2bcea66e59ea2d40f731b36e2481904c/sobuduguzekegudi.pdfIn PDF document text
  • http://conomiya.com/images/uploadedimages/file/58492346597.pdfIn PDF document text
  • http://playbabydoll.com/userfiles/file/pixegekenakamajekobexupuj.pdfIn PDF document text
  • https://www.stnedu.com/ckfinder/upload/files/64439412852.pdfIn PDF document text
  • http://atdawnwelift.com/userfiles/file/11100943815.pdfIn PDF document text
  • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/161363b4483712---goketoma.pdfIn PDF document text
  • http://adriennemason.com/assets/files/53559098917.pdfIn PDF document text
  • https://www.santaterezinha.com.br/js/ckfinder/userfiles/files/38121762637.pdfIn PDF document text
  • http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/16137aeb8d7a79---95487819389.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=download+nmap+apkPDF 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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