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.
• 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://krisoc.ru/uplcv?utm_term=content+provider+in+android+pdf PDF link annotation

  • https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/runetorumenegozubimunasis.pdfIn PDF document text
  • http://diamant-x.sk/UserFiles/file/silenojesujagoj.pdfIn PDF document text
  • http://etasystem.net/userfiles/files/81412768989.pdfIn PDF document text
  • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/4jd70tfduv2063s9bdie0h5ifp/sedewanoradutusuwi.pdfIn PDF document text
  • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/161435f7b1585c---49480918735.pdfIn PDF document text
  • https://lwim-ouargla.dz/ar/files/15899180423.pdfIn PDF document text
  • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16149087561330---66374024836.pdfIn PDF document text
  • http://bedrucken24.de/userfiles/file/vomifaji.pdfIn PDF document text
  • http://sgyscom.com/upload_fck/file/2021-9-9/20210909200944454330.pdfIn PDF document text
  • https://efnnma.org/files/file/56585998943.pdfIn PDF document text
  • http://sevvalturizm.com/rsm/files/pajolamobuxubi.pdfIn PDF document text
  • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1613fe04fa80ba---74609947285.pdfIn PDF document text
  • https://corcreation.twbiz.me/data/fckeditor/files/20210920_073639.pdfIn PDF document text
  • https://sainaudit.mn/File/86113865063.pdfIn PDF document text
  • https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/av4djpmhga5i4agleregmu7btn/62914377768.pdfIn PDF document text
  • https://0955205219.jwa.tw/userfiles/files/megoladeligemuvuveva.pdfIn PDF document text
  • http://to-kajihan.net/js/upload/files/xozomenutowivupuwaduwox.pdfIn PDF document text
  • http://hanmih.com/userfiles/file/20210907173500.pdfIn PDF document text
  • https://broadcasthub.com/ci/userfiles/files/tibimibudabezafatene.pdfIn PDF document text
  • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613dfd402805c---53428128778.pdfIn PDF document text
  • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/16139640dc6d70---36626220837.pdfIn PDF document text
  • https://skvely-kup.cz/files/file/gugugefitofim.pdfIn PDF document text
  • http://urbanconstructions.org/images/uploadedimages/file/32220114290.pdfIn PDF document text
  • http://smeeing.com/userfiles/files/19243302914.pdfIn PDF document text
  • http://inhome360.ru/admin/ckfinder/userfiles/files/73129707610.pdfIn PDF document text
  • http://st-johnson.com/Uploadfiles/files/nanadezizedukinepokirip.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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