Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d14f19f369bd3cd…

MALICIOUS

PDF

793.7 KB Created: 2010-05-11 21:52:05 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 2.5.000_PHP4 (http://www.tcpdf.org))
MD5: 6aa232ce41fec610a54e670c14615ce0 SHA-1: f37c2eaf2a8b2d041459296cc4ac84f68ca3fdf7 SHA-256: 6d14f19f369bd3cdf16c4a13dbc475862a7c90dad1e8194d245ea5de77c1446a
132 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF contains a hidden HTML iframe, a strong indicator of malicious intent. ML classification and ClamAV detection further confirm its malicious nature. The embedded URL points to a potentially malicious resource, suggesting the document is designed to download and execute a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9859

Heuristics 3

  • ClamAV: Html.Spyware.IMG-7 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Html.Spyware.IMG-7
  • 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://www.codeforum.cn/free/max1.htm
    • http://ns.adobe.com/xap/1.0/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/iX/1.0/
    • http://ns.adobe.com/exif/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/photoshop/1.0/
    • http://ns.adobe.com/tiff/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://purl.org/dc/elements/1.1/
    • http://www.iec.ch
    • http://www.gnu.org/copyleft/gpl.html

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000cec8.bin
a5337ef1f5a0dfe4dc8fa6b4f3ef847a53624800b5928a0eeef5b888ceecaabc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xCEC8 264072 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.