PDF malware analysis — malicious · 842f1f85b74efcc8

MALICIOUS

PDF

102.4 KB

MD5: ae127e624fcb6266c7e59c4feda7cf98 SHA-1: 33d713b767eb0c63d6e35e1012050ed4a91b564a SHA-256: 842f1f85b74efcc8105c3453743f0c1416214ec2683de7fd78eff7e464146b12

168 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The sample is a PDF document that leverages the XFA form functionality to exploit CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF processing. The embedded script, identified as JavaScript, is likely responsible for downloading and executing a second-stage payload, as indicated by the critical heuristic firings and the presence of an embedded script payload. The ClamAV detection further confirms its malicious nature.

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` `35cd082086ace3c98b3e539e4e97c35ca651ff94b37bbe7b4830c901dc3bfb12`	pdf-embedded-script	PDF raw stream script payload at offset 0x346	104167 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.