Malicious PDF — malware analysis report

Static analysis result for SHA-256 673912f3af95d765…

MALICIOUS

PDF

12.7 KB
MD5: 4b4831496f0506752c887277bf33215e SHA-1: 7c5f144f4a0f52b9c2c2648354dd92c09b25fe6e SHA-256: 673912f3af95d7655a7452321149eb30039ae2842899d60be513357b654f239e
168 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains embedded XFA content which is known to be exploitable via CVE-2010-0188. The embedded script, identified as JavaScript, likely contains the exploit code. The script's purpose is to download and execute a second-stage payload, although the exact URL is obfuscated within the script's logic.

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.

FilenameKindSourceSize
embedded_pdf_script_00000359.bin
5b1b42122b65ac17e9593f1a004a5bfac30ee6c536cc275ec9e754e65a0822b4
pdf-embedded-script PDF raw stream script payload at offset 0x359 12241 bytes