PDF malware analysis — malicious · 17f9b6e8f2790b44

MALICIOUS

PDF

16.1 KB

MD5: 74bfc0f9a78836a4e26093a7446a37fe SHA-1: 147ca300478a59dee7dd56b134d6e159ff548deb SHA-256: 17f9b6e8f2790b447342acf8704d4e7f1cf283aea326e8a1c26fe342ad07c881

168 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains embedded JavaScript within an XFA form, which is flagged as malicious by multiple heuristics including ClamAV and an ML classifier. The critical heuristic specifically identifies the CVE-2010-0188 exploit targeting Adobe Reader's LibTIFF component, indicating a client-side execution vulnerability. The embedded script, though truncated, contains JavaScript code that likely contributes to the exploitation process.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
Embedded script payload in PDF stream low PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
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.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000354.bin` `07bc1f46acbea4388ab8fe0998b29b8ca0e68c56779100ef052914c3146d9f23`	pdf-embedded-script	PDF raw stream script payload at offset 0x354	15752 bytes

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