PDF malware analysis — malicious · 5d9aacb8d7b79e78

MALICIOUS

PDF

99.5 KB

MD5: 7793209c3d65de02c0896666e090409e SHA-1: b0403e02274d55c0070f2cc6a7f811c9b77c07cd SHA-256: 5d9aacb8d7b79e789fa7d6475c56183b7e5081a4ed00e62256d1cb24a89eb471

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains an exploit for CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. This exploit is designed to execute arbitrary code, which is often used to download and run additional malicious payloads. The ML classifier strongly indicates maliciousness, and the embedded script, though obfuscated, likely facilitates this payload delivery.

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` `b04c8e6dc0ee12e214a52661dc7aaf3a0e0713429a41d922efab02c9b33d3428`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101188 bytes

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