PDF malware analysis — malicious · 15b32b4b4da98c81

MALICIOUS

PDF

99.6 KB

MD5: 767c9f9003d27d5c37335573d696da2f SHA-1: c76000cfc3b99c5a6b84911303d9aa50640e043b SHA-256: 15b32b4b4da98c812738fcef8d024d321882c6bb249131c2028467466819e38c

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms, to execute a payload. The embedded script, likely JavaScript given the PDF context, is designed to leverage this exploit. While the specific URLs found are benign, the core functionality indicates an attempt to compromise the user's system via a known client-side vulnerability.

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/
- 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` `32932f5aeaaa1d95a6aa15c8b2168a722c4998cbbcc8b0f9e544c3f3d1f8f771`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101247 bytes

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