PDF malware analysis — malicious · 5c970ad515a570c2

MALICIOUS

PDF

16.3 KB

MD5: b7fdaa38f6d81120cb6cb96b7279b842 SHA-1: 959295177e8bcda2751f20af355f952e6491e866 SHA-256: 5c970ad515a570c2a037951f253880f567d1e51a0dda96a932373ccafc018765

168 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains embedded XFA (XML Forms Architecture) content, which is known to be a vector for exploits. Specifically, the 'CVE_2010_0188' heuristic firing indicates exploitation of a vulnerability in Adobe Reader related to LibTIFF and XFA. The embedded JavaScript, though truncated, is indicative of malicious scripting intended to execute the exploit payload. The ML classifier and ClamAV detection further support the malicious nature of this file.

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.
ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000359.bin` `b13eb4ecc282311f2af4770a4c783f9bab04e87e29b83819cf683aa948d61fb6`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	15926 bytes

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