PDF malware analysis — malicious · 732ec2d882b0c6b3

MALICIOUS

PDF

90.1 KB

MD5: cd8943246514c7be778637e2a7214e48 SHA-1: 5147e40513c68527c9a0114d085d8825608f6dfc SHA-256: 732ec2d882b0c6b36f72fa5bd16b41b2d2078ebe84481341551fd49d4c27f1ce

168 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains embedded XFA (XML Forms Architecture) content which is known to be vulnerable to CVE-2010-0188, an exploit targeting Adobe Reader. The embedded JavaScript attempts to deobfuscate and execute a payload, likely to download and run a second-stage malicious file. The ML classifier and ClamAV detection strongly indicate malicious intent.

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://ns.adobe.com/xdp/
- http://www.xfa.org/schema/xfa-template/2.5/
- http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_0000023c.bin` `b4c26d4c181db1be388bf69d9cb8acdb960baf13031942f0e102fc8e5424c017`	pdf-embedded-script	PDF raw stream script payload at offset 0x23C	91530 bytes

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