PDF malware analysis — malicious · 0baa4825436f02de

MALICIOUS

PDF

99.9 KB

MD5: 43acbfb8d8c57792650d9b6e4602d5f5 SHA-1: 0b9835b5d8825f8c8863d07b2e424dd99a7896a8 SHA-256: 0baa4825436f02de3cbcf4d0528085e18c74285512d1fac32d61fa39d468a6e1

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The critical heuristic firing for CVE-2010-0188 indicates that this PDF exploits a known vulnerability in Adobe Reader's handling of XFA forms. The embedded script payload and ML classifier further support its malicious nature. The exploit likely serves to download and execute a secondary payload, though no specific URLs for this are present in the provided 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/
- 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` `ce6c59f619700a0cf0512c14493367f0e65db2c664b8c1408a67b5b8937ad200`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101502 bytes

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