PDF malware analysis — malicious · 0f3c96babacf395a

MALICIOUS

PDF

79.7 KB

MD5: 027a79c41418008827c700e8d5c32c86 SHA-1: ed6111be176db6ff2486817354f1b448f085d347 SHA-256: 0f3c96babacf395a7c84cdf08f9a8261d71448f277717d417d6c58763d93297d

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The critical heuristic firing indicates exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. The PDF structure and embedded file further support this, suggesting the document is designed to exploit this vulnerability upon opening. The ML classifier strongly flags this PDF as malicious, reinforcing the exploit-based attack pattern.

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` `d79ecab3959eb256ee58ce1b6333fb3ea8a448cf33b387f7789219accc28f85f`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	80876 bytes

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