PDF malware analysis — malicious · fcd4c3b6e7785be4

MALICIOUS

PDF

811.9 KB Created: 2010-09-20 21:21:01 Authoring application: Joomla! 1.5 - Open Source Content Management (via TCPDF 2.5.000_PHP4 (http://www.tcpdf.org))

MD5: 49f900508ba98eb3b299f9df6e905e99 SHA-1: 968f2e066a00de0dff4f417edbde4fbbc7561e94 SHA-256: fcd4c3b6e7785be41c94f8eef2eb7b8580dc08818bc1ebde18a4f4eb73a24e6d

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. ClamAV detected this file as Html.Spyware.IMG-7, indicating a known malicious signature. The embedded URL points to a suspicious domain, likely serving as the destination for the iframe content. No scripts were extracted from this sample, limiting the analysis of its specific execution behavior.

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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