Malicious PDF — malware analysis report

Static analysis result for SHA-256 3554756eb37f6248…

MALICIOUS

PDF

5.1 KB Created: 2015-06-03 16:39:02 +03:00 Authoring application: DOMPDF
MD5: 026094d9fcb348dfbfa46815f24291d1 SHA-1: 4c10a3cda79926f8e1f00ff10e1444db22e545d1 SHA-256: 3554756eb37f6248a6498f8febaf7798ecc00f99723eeb96f40dc1548e40b7db
60 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO link farming or to distribute malicious content. The document body, while containing text about financial options, also repeats these URLs. No scripts were extracted from this sample. The primary attack pattern observed is the creation of a link farm designed to attract traffic or potentially serve as a distribution point for further malware.

Machine Learning

  • Nyx PDF Classifier clean score 0.1330

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://www.academiafutebolangola.com/index.php?2015/hmdeepfocus.pdf&audtr=1&aspx=1678
    • http://www.prequine.com/index.php?2015/torcida.pdf&fcldj=1&aspx=395
    • http://www.academiafutebolangola.com/index.php?2015/hmdeepfocus.pdf&audtr=1&aspx=1918
    • http://www.academiafutebolangola.com/index.php?2015/hmdeepfocus.pdf&audtr=1&aspx=2359
    • http://phcccolorado.org/index.php?2015/arabtera.pdf&effpp=1&aspx=404
    • http://dyrlaegecentret.dk/index.php?2015/typestitch.pdf&hjhle=1&aspx=sitemap