Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9140a00359fdac0…

MALICIOUS

PDF

389.2 KB Created: 2010-09-21 21:04:11 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 2.5.000_PHP4 (http://www.tcpdf.org))
MD5: 19c5496ffe144e7e041cadfeb21f22cb SHA-1: 2c8820ace61011765db1121cab93702ce27a3cf7 SHA-256: f9140a00359fdac062c66f67c60bad806c3e435f6028d864c87f409178a2daa0
100 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Html.Spyware.IMG-7, indicating malicious content. A critical heuristic identified a hidden HTML iframe within the PDF, a common technique to redirect users to malicious sites. One embedded URL, http://www.codeforum.cn/free/max1.htm, has an unknown reputation and is likely the target of the iframe. No scripts were extracted from this sample.

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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000b7bd.bin
a5337ef1f5a0dfe4dc8fa6b4f3ef847a53624800b5928a0eeef5b888ceecaabc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB7BD 264072 bytes

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