Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c1d0259a80c65f7…

MALICIOUS

PDF

235.8 KB Created: 2010-03-01 19:19:04 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 2.5.000_PHP4 (http://www.tcpdf.org))
MD5: e3b1f64ece172f44b745b81bcf2cc7ba SHA-1: 93e744aa48898e1e321a6b3312b95d923fd0fda9 SHA-256: 8c1d0259a80c65f73e01da8d074217cd42d7b1de05a57ff2e662aeece299262b
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a hidden external HTML iframe, indicating an attempt to redirect the user to malicious content. The embedded URLs are likely part of this redirection chain. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9482

Heuristics 2

  • PDF contains hidden external HTML iframe high PDF_HIDDEN_HTML_IFRAME
    PDF bytes contain a hidden zero-size HTML iframe pointing to an external HTTP(S) URL. This is a strong malicious dropper/redirect indicator and is not expected in ordinary PDF content.
  • 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://fuadrenal.com/lib/index.php
    • http://reycross.com/lib/index.php
    • http://odmarco.com/lib/index.php

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000b9ed.bin
a5337ef1f5a0dfe4dc8fa6b4f3ef847a53624800b5928a0eeef5b888ceecaabc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB9ED 264072 bytes

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