PDF malware analysis — malicious · aa4040a4677150ea

MALICIOUS

PDF

811.9 KB Created: 2010-09-10 22:20:47 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 2.5.000_PHP4 (http://www.tcpdf.org))

MD5: 89ea21b4a14e90ad19237a311eae794a SHA-1: 411d036a6e59dafa8836a31917f73c0137633076 SHA-256: aa4040a4677150ea498ba76bd65e5b70c569893f41b37a9a8553bd337da6e522

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a hidden HTML iframe, which is a common technique for redirecting users to malicious websites. The embedded URL points to 'http://www.codeforum.cn/free/max1.htm', suggesting a lure to a potentially compromised or malicious site. ClamAV also detected this file as Html.Spyware.IMG-7, further indicating malicious intent.

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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off0000ba7c.bin` `a5337ef1f5a0dfe4dc8fa6b4f3ef847a53624800b5928a0eeef5b888ceecaabc`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0xBA7C	264072 bytes

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