PDF malware analysis — malicious · 7d96c2a92f7762bd

MALICIOUS

PDF

4.2 KB

MD5: fb659f2066aeb8f23c0b868d332254b1 SHA-1: 3a485576ede4f5f33788c1a05b06c897bfcb0ccd SHA-256: 7d96c2a92f7762bd53be92be67deb1fef90be23e7cd7beb57e9aaff88849c11a

126 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an embedded XFA form and triggers the CVE-2010-0188 exploit, indicating it's designed to execute arbitrary code upon opening in a vulnerable Adobe Reader version. The ML classifier strongly flags this PDF as malicious. No scripts were extracted, but the exploit itself is the primary indicator of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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 script payload in PDF stream medium 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 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `4acd03e0214a54a5cbbd03dbde1cf899c23a405c84bed933963a77452c9a302f`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12910 bytes

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