PDF malware analysis — malicious · 83330a622d3df657

MALICIOUS

PDF

4.2 KB

MD5: bab8d6af782d86c6e7dab854af46a6da SHA-1: 8c39fd059c4567640b1f97a7532acf6e13a1d759 SHA-256: 83330a622d3df6571b4670a3bf4b0e312d4714544d8801d0a9c01e2d1eee911b

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains an embedded XFA form that exploits CVE-2010-0188 in Adobe Reader, a known vulnerability for client-side code execution. The embedded script payload and ML classifier strongly indicate malicious intent. The exploit likely serves to download and execute a secondary payload, though the specific mechanism is not detailed in the extracted evidence.

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.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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/1.0\
- 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_file_obj0008.bin` `df7c6edae30dfdf9e497109b8a38177acdf00c3301e6ec1c69fdf3c7e24819af`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12957 bytes

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