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.
• 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.
• 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 https://synerhu.ru/uplcv?utm_term=stickman+legends+hack+mod+apk PDF link annotation

  • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/161310a6e88b08---40641757703.pdfIn PDF document text
  • http://farmaciafasolis.eu/userfiles/files/jofuxefimu.pdfIn PDF document text
  • https://daqing-jewelry.com/uploads/files/202109050422334801.pdfIn PDF document text
  • http://gyogytornasziget.hu/uploads/files/63846496790.pdfIn PDF document text
  • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea4f665e96---26808306651.pdfIn PDF document text
  • http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613f8551ea292---82874622927.pdfIn PDF document text
  • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133094f87b86---woriwuwonot.pdfIn PDF document text
  • http://traktor-tv.de/sites/default/files/file/luligiguzog.pdfIn PDF document text
  • http://tech-sub.com/userfiles/file/93476050374.pdfIn PDF document text
  • https://fereshtegan.net/basefile/fereshtegannet/files/14960349010.pdfIn PDF document text
  • https://greenfuturevietnam.com/Upload/files/bupapusowekedis.pdfIn PDF document text
  • http://smartickgroup.com/userfiles/1565035580.pdfIn PDF document text
  • https://macauroommate.com/ckfinder/userfiles/files/zuzapusetepat.pdfIn PDF document text
  • https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161417f5762c13---24024866197.pdfIn PDF document text
  • https://rajaketiga.com/contents/files/wuwufafuxudivimilisabal.pdfIn PDF document text
  • https://interstudy.net/userfiles/file/40992243641.pdfIn PDF document text
  • http://hanifeugur.com/image/files/geweretewuvusodigizejif.pdfIn PDF document text
  • http://warwick-ems.org/userfiles/file/mejewasidefe.pdfIn PDF document text
  • https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/1612f22a654c85---38811481716.pdfIn PDF document text
  • http://christschoolblr.in/userfiles/file/61129820269.pdfIn PDF document text
  • http://yushendesign.com/images_fck/file/1630789773.pdfIn PDF document text
  • http://xn--12cxa2boh7cd6g7anex5omh.com/ckfinder/images/files/vuvutugidipujuga.pdfIn PDF document text
  • http://www.msjcongregation.org/www/js/ckfinder/userfiles/files/68313693590.pdfIn PDF document text
  • https://deltaguvenlik.net/userfiles/file/nabimewakuxosa.pdfIn PDF document text
  • https://onderhoudnlgarantie.nl/upload/file/barigogebake.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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