PDF malware analysis — malicious · 76f6ceb275bada36

MALICIOUS

PDF

102.1 KB

MD5: 1540ee98b64aea254dcceb4e3919b941 SHA-1: f59ef6fc7b00b69280026f2701df6a4dd0f0e567 SHA-256: 76f6ceb275bada3654ee8dee87032103eba22457d60ded38e2931ecef101f1a5

168 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The file is a PDF that contains an XFA form and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader. The embedded script, identified as JavaScript, likely contains the malicious payload. ClamAV also detected this file as Pdf.Exploit.Agent-6136306-0, further confirming its malicious nature. The exact functionality of the embedded script is obfuscated, but its presence in conjunction with the exploit indicates an attempt to execute arbitrary code.

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_00000346.bin` `13e2c3cf21e95993201eb46d4476fdd3ccf973cbc6d61e6e5129b09c5798e124`	pdf-embedded-script	PDF raw stream script payload at offset 0x346	103819 bytes

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