PDF malware analysis — malicious · 6c13f47e34f7ce9a

MALICIOUS

PDF

13.2 KB

MD5: 79af4527c0eab3b2ec23d661cf692146 SHA-1: ed7ec8f13948891aa325b8d127d35037dec0303b SHA-256: 6c13f47e34f7ce9a03ba7fa9a3c39f051d6d13e0792abbe4e03a46746d4ebed1

168 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The file is a PDF that contains embedded XFA (XML Forms Architecture) data, which is known to be a vector for exploits. Static analysis identified a critical heuristic match for CVE-2010-0188, an Adobe Reader exploit targeting LibTIFF within XFA forms. The embedded script, which is JavaScript, likely contains the exploit code and is designed to download and execute a second-stage payload. The ML classifier and ClamAV detection further confirm the malicious nature of the 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` `1601d109336efe59338b255611981aaeaad67568f4efe01bff20ab17dd5f5fa2`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	12775 bytes

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