PDF malware analysis — malicious · 095622ad11c98e8f

MALICIOUS

PDF

4.2 KB

MD5: 63b8ae31044a47346c68a9309347ade7 SHA-1: 8e23cd1a0b150d87fb6d5fd0f63fffee78562183 SHA-256: 095622ad11c98e8fdea0cb8bd84af995ef563b192985405df86b8be71e1ffece

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

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 the specific details of the payload are not available from this analysis.

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` `1386878fa670ab636f478043d9d0eb1aabdcdd5c430abec9bb085b1ee750f02b`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12919 bytes

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