PDF malware analysis — malicious · 30d15ec7601f5975

MALICIOUS

PDF

811.9 KB Created: 2010-09-11 22:02:58 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 2.5.000_PHP4 (http://www.tcpdf.org))

MD5: 2cb4020bdc073a0eb5552d5b45b0b0c6 SHA-1: ec7d918840fd0f31d4105269a2a19d77629e3093 SHA-256: 30d15ec7601f59758cec4e8a414d40569eacdf00b5e79baf173ccd61cff0bc43

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 a known malicious signature. A critical heuristic identified a hidden HTML iframe within the PDF, which is a common technique to embed malicious content or redirect users. This iframe points to 'http://www.codeforum.cn/free/max1.htm', suggesting a lure to a potentially compromised or malicious webpage. The presence of a hidden iframe and the ClamAV detection strongly suggest this PDF is part of a phishing or malware delivery scheme.

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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