Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a42e82f150653b5…

MALICIOUS

PDF

4.8 KB Created: 2015-06-03 16:40:17 +03:00 Authoring application: DOMPDF
MD5: 038cb76b4729fab2cbde83a5f9f10a48 SHA-1: 6f7b4e0b6b28d027f8f5874f7fd6e139de0c781b SHA-256: 9a42e82f150653b556b9eb6e1b02e468858f0538f97961dc9dc264c7ab0a3522
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 pointing to external PDF documents, a technique often used for SEO manipulation or to distribute malicious payloads. The heuristic 'PDF_SEO_LINK_FARM' directly indicates this behavior. The document body contains text related to 'Forex rates' and trading, which may serve as a lure to make the document appear legitimate. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier clean score 0.1559

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=1954
    • http://www.nibl.co.nz/index.php?2015/decision.pdf&angzv=1&aspx=2077
    • http://www.nibl.co.nz/index.php?2015/decision.pdf&angzv=1&aspx=1488
    • http://phcccolorado.org/index.php?2015/arabtera.pdf&effpp=1&aspx=1122
    • http://phcccolorado.org/index.php?2015/arabtera.pdf&effpp=1&aspx=1121
    • http://dyrlaegecentret.dk/index.php?2015/typestitch.pdf&hjhle=1&aspx=sitemap