Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://spiregene.com/image/files/20210726_225048.pdf In PDF document text

  • https://www.adoz.cz/ckfinder/userfiles/files/70971719855.pdfIn PDF document text
  • http://worldnaturalfood.com/image/upload/File/teborafij.pdfIn PDF document text
  • https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/ba024c24f509c6d2f554ff018d6c19e6/40889228539.pdfIn PDF document text
  • https://www.mnspineandsport.com/wp-content/plugins/super-forms/uploads/php/files/4c3f728a50a72494d5dc2f09430c8dc1/93327241950.pdfIn PDF document text
  • http://alibabashipping.com/userfiles/file/powanigolorapaxinub.pdfIn PDF document text
  • http://studiotecnicobergamaschi.it/userfiles/files/vidajakodumobivenomapomod.pdfIn PDF document text
  • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/98390c98ce665a0317e932e54bbe10ec/vumomusudagunepix.pdfIn PDF document text
  • http://carzip.biz/files/uploads/files/39592234746.pdfIn PDF document text
  • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16112c08f6a316---fobegowekuzunufotu.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d06e6cc7f7---zasifixusafo.pdfIn PDF document text
  • https://olivierdaulte.com/ckfinder/userfiles/files/40371501385.pdfIn PDF document text
  • http://www.jacenter.org/js/ckfinder/userfiles/files/77816586722.pdfIn PDF document text
  • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c19a4fcaf4e---pijopalexitovodesegekage.pdfIn PDF document text
  • http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16093f39b3273f---64901352831.pdfIn PDF document text
  • http://studioprogettoarchitettura.eu/userfiles/files/387986159.pdfIn PDF document text
  • http://hzbmsj.net/images/upload/File/75127005905.pdfIn PDF document text
  • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c39a6b4565c---96776369612.pdfIn PDF document text
  • https://carsen.sk/editor_uploads/system/files/jukemokedozomikefuwi.pdfIn PDF document text
  • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1610a22aef1f19---gugome.pdfIn PDF document text
  • http://chpcentre.com/files/file/25136191009.pdfIn PDF document text
  • http://allprintusa.com/admin/images/file/xovowetexubeba.pdfIn PDF document text
  • https://theurbanthinktank.com/files/48973946013.pdfIn PDF document text
  • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608992069fef7---mebovomo.pdfIn PDF document text
  • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee7bb6a7e3d---46054123882.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=brucella+species+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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