Malicious PDF — malware analysis report

Static analysis result for SHA-256 55aa7b0cab03b984…

MALICIOUS

PDF

4.7 KB Created: 2015-06-03 16:40:11 +03:00 Authoring application: DOMPDF
MD5: c789e75f3659b90ddac4d164416efe88 SHA-1: 63b574fcdece86c11d9ce14e507cfd4d9ec48233 SHA-256: 55aa7b0cab03b984fc8a5576c82cd5299b12327085c5e726b6305cdbc8bc0211
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded URLs, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body, while containing financial terms, also repeats these URLs, suggesting a tactic to manipulate search engine results or drive traffic to potentially malicious external sites. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier clean score 0.1457

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://phcccolorado.org/index.php?2015/arabtera.pdf&effpp=1&aspx=1312
    • http://phcccolorado.org/index.php?2015/arabtera.pdf&effpp=1&aspx=1539
    • http://www.prequine.com/index.php?2015/torcida.pdf&fcldj=1&aspx=187
    • http://phcccolorado.org/index.php?2015/arabtera.pdf&effpp=1&aspx=2046
    • http://www.prequine.com/index.php?2015/torcida.pdf&fcldj=1&aspx=902
    • http://dyrlaegecentret.dk/index.php?2015/typestitch.pdf&hjhle=1&aspx=sitemap

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