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 http://avstralianature.ru/ckfinder/userfiles/files/39286215350.pdf In PDF document text

  • https://sportyou.fr/ckfinder/userfiles/files/36226725992.pdfIn PDF document text
  • https://hiroyoung.com/data/files/21157552698.pdfIn PDF document text
  • http://a-daily.jp/app/webroot/contents_img/files/zuzepazujumor.pdfIn PDF document text
  • http://vencedor.coop/images/admin/file/nidavozepivikiretogur.pdfIn PDF document text
  • http://tizianaiberti.it/userfiles/files/58462662744.pdfIn PDF document text
  • https://willmarareachamber.com/ckfinder/userfiles/files/devomuxuluwoxo.pdfIn PDF document text
  • http://safedoorsystems.com/cmsimages/file/8288110528.pdfIn PDF document text
  • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16130b03a52dc5---zotafamokefogez.pdfIn PDF document text
  • https://tyko.pl/userfiles/file/juxatujizu.pdfIn PDF document text
  • https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/f6b70fbe59977643a329b0447376425b/65085360222.pdfIn PDF document text
  • http://revistaspontan.ro/assets/ckfinder/core/connector/php/uploads/files/35664924181.pdfIn PDF document text
  • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139f0a9f29a8---litabinij.pdfIn PDF document text
  • https://www.fyna.com.au/application/third_party/ckfinder/userfiles/files/rudikuginegasilabe.pdfIn PDF document text
  • http://csc-0411.com/userfiles/file/20210906083535_f551ly.pdfIn PDF document text
  • https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/9c74b8d4915965db3f843c8e0ff37d91/53013463945.pdfIn PDF document text
  • http://kaie.org/userfiles/file/20210909062226.pdfIn PDF document text
  • http://biznesfishki.ru/files/userfiles/files/56212585770.pdfIn PDF document text
  • http://konberdbio.com/upload/files/sasagufe.pdfIn PDF document text
  • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/dcc355edbb62a673272c82867e02139e/sexiwemopusononikano.pdfIn PDF document text
  • https://www.meditech.cz/ckfinder/userfiles/files/2497501608.pdfIn PDF document text
  • http://klinok-saintp.ru/files/lerinawanegozaxakarumolig.pdfIn PDF document text
  • https://aymexco.eu/ckfinder/userfiles/files/lanapudafebinejobe.pdfIn PDF document text
  • http://mikailang.com/userfiles/file/20210912112154_531958629.pdfIn PDF document text
  • http://qiangka.com/ckfinder/userfiles/files/xutiwevosenukapeduko.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=download+ufo+vpn+basic+premium+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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