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 https://archism.ru/uplcv?utm_term=animal+classification+worksheets+for+3rd+grade PDF link annotation

  • https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/3cf93584c15060585605daa5bdd2a341/perujonunimed.pdfIn PDF document text
  • http://erpsamik.com/ckfinder/userfiles/files/xonezalola.pdfIn PDF document text
  • http://kelt.pl/userfiles/file/47380211377.pdfIn PDF document text
  • https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/f2215b093d594da7432273f5e7afd143/nunifu.pdfIn PDF document text
  • https://www.pollackmihalyiskola.hu/ckfinder/userfiles/files/63765875295.pdfIn PDF document text
  • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160858481a7040---fixobaxufafigejaji.pdfIn PDF document text
  • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c511fa8c9af---72026369237.pdfIn PDF document text
  • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/22991488dc131d9a9adc8bb48879416a/97270227600.pdfIn PDF document text
  • https://etonbio.com/newsLetters/images/file/wukijibi.pdfIn PDF document text
  • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdc45ad4ef9---ditukopojubojonupok.pdfIn PDF document text
  • http://giasuminhtam.com/Images_upload/files/96841874730.pdfIn PDF document text
  • http://smartdeal.pl/files/upload/files/gebikat.pdfIn PDF document text
  • http://cinstech-inspect-survey.com/fckeditor_userfiles/file/jenasupulosodofep.pdfIn PDF document text
  • http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/160df29ae92163---55988564346.pdfIn PDF document text
  • http://morgancountyoh.com/userimages/26826092871.pdfIn PDF document text
  • http://wonsakai.com/uploads/files/71941512359.pdfIn PDF document text
  • http://ikuma-car.com/js/upload/files/62782838715.pdfIn PDF document text
  • http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160871acbeb758---vekivinob.pdfIn PDF document text
  • https://energiadirect.pl/application/resources/ckfinder/userfiles/files/pebavazodiwaxuwuxuwiduw.pdfIn PDF document text
  • http://niszczeniewaw.pl/userfiles/file/jizejebanixovi.pdfIn PDF document text
  • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c8b3253355---23346542177.pdfIn PDF document text
  • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6235338f37---54561015815.pdfIn PDF document text
  • http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609862d037ea7---fumekovaraxubilegixates.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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