Malicious PDF — malware analysis report

Static analysis result for SHA-256 30de29a41b11d908…

MALICIOUS

PDF

62.9 KB Created: 2021-10-06 13:16:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 46e351f5aedbbfe9a35e4ccf8875335e SHA-1: 35d8b04dc2df7499408abfbbb61bc5c3f6957a25 SHA-256: 30de29a41b11d908e7027c99dbd0452fcc28bcd80c21a650a7d1be615e9bca06
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, with a high concentration on disposable hosting, indicating a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. The presence of embedded JavaScript, though not fully analyzed due to obfuscation, suggests potential for further malicious actions like downloading additional payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7190

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
  • 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.
  • 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://okazionche.com/files/bikakobepokijaxitolifugom.pdf In PDF document text
    • http://offerparts.com/upload/files/jitalu.pdfIn PDF document text
    • http://kompletucetnictvi.cz/files/file/kirog.pdfIn PDF document text
    • http://planet-for-events.de/userfiles/file/pabiwor.pdfIn PDF document text
    • http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615096710a031---77586931633.pdfIn PDF document text
    • http://mateuszkucharski.pl/admin/file/zofetokajeverojobepupi.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1614b98c4cfe50---72262571788.pdfIn PDF document text
    • http://whatcanidoforyou.eu/publish/file/79414435799.pdfIn PDF document text
    • http://tamtamphat.com/upload/files/mijamomozikevukolefoxorum.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=reply+to+a+second+interview+invitationPDF link annotation

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