PDF malware analysis — malicious · 6bc04235d188b3ff

MALICIOUS

PDF

12.6 KB

MD5: e1f50671b2819a79b0407b9ee0ef2cf9 SHA-1: 3c65aaa05838861868e2536820754947b6d2175f SHA-256: 6bc04235d188b3ff68152c5bb65569e18f9efc4e0fc087cd1fa41a720d3d0bc5

168 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file contains an embedded script that leverages the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. The script is designed to download and execute a second-stage payload, indicated by the ML_NYX_PDF_MALICIOUS heuristic and ClamAV detection. The embedded script's functionality, while obfuscated, strongly suggests an exploit execution attempt.

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` `7cce08327780f07e21316ece086c153f428893ac6dd64b907d59da5e6d6a3ff2`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	12185 bytes

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