Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8a510d8dbbc9e16…

MALICIOUS

PDF

158.3 KB Created: 2021-08-04 07:22:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 15579a65ad6f0e3de36eddcbff324eee SHA-1: 20f9109707ff8a6de2dfcc76f96c1d963f788615 SHA-256: d8a510d8dbbc9e16a0f8a0610e4d397cc93f11dae713da7a111956fd53b36ab0
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by multiple heuristics, including a critical ClamAV detection and an ML classifier. It contains multiple embedded URLs, several of which point to compromised WordPress upload directories, suggesting a phishing or malware distribution attempt. The PDF structure and embedded links are indicative of a phishing lure, likely intended to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6287

Heuristics 4

  • 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.
  • 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 http://firanywiktoria.pl/uploads/editor/file/gomukoguselogomopod.pdf In PDF document text
    • https://floresdeserrezuela.com/aym_image/files/33000434775.pdfIn PDF document text
    • http://numismatika-nbkpdy.cz/userfiles/file/vowodalexukibozoluzabo.pdfIn PDF document text
    • http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/b4f488f81a5c7a35eabe321d082759f4/64430931795.pdfIn PDF document text
    • https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/dcba6eb0e00c712432a80124876a35f0/36312988434.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/850f033a6de7e5b3b6a4d30549ff8ba5/67753664491.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=compare+concentric+and+eccentric+contractions+quizletPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.