Malicious PDF — malware analysis report

Static analysis result for SHA-256 22dd06e74e7e7263…

MALICIOUS

PDF

111.9 KB Created: 2021-07-20 09:35:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 3f367a0909976a1386ad384f2e0c889a SHA-1: 974dd8298615bedf88755857d7163a631fdad744 SHA-256: 22dd06e74e7e7263ca134f49fccace88decb114fddf12f4ce93a330d3715af14
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1071.001 Web Protocols

The PDF contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or initiating malicious actions. Several URLs point to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6145

Heuristics 5

  • 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.
  • 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
  • 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://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ea30b7f09d---4442508386.pdf In PDF document text
    • https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/ber44t151c9ii0m7dgmncdm63o/mejemuxa.pdfIn PDF document text
    • http://banphimchuot.com/userfiles/file/45060464319.pdfIn PDF document text
    • https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/34b9c5adfac74fcd917ee86a8a38349f/tawol.pdfIn PDF document text
    • http://jatyn.cn/upfiles/202106/file/1624377548.pdfIn PDF document text
    • https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/15f6e490b8b3e5d6f89622e197fa840e/32956690595.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=non+destructive+testing+and+evaluationPDF link annotation
    • https://grupo.iberia.com/js/ckfinder/userfiles/files/35052750123.pdfIn PDF document text