Malicious PDF — malware analysis report

Static analysis result for SHA-256 729551c4c27ebc2f…

MALICIOUS

PDF

16.3 KB
MD5: 24dd8ac3a71fd1596cb11ad4664107f0 SHA-1: e7c51f3d53d8e9020e6b8b296441eb84ff819829 SHA-256: 729551c4c27ebc2f7416cd729e3d8f8b85f094eafa8745e0fe75b8ea6f1dae4d
168 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript within an XFA form, which is designed to exploit the CVE-2010-0188 vulnerability in Adobe Reader. This exploit is capable of executing arbitrary code, indicating a high likelihood of a malicious payload being delivered. The embedded script, though truncated, suggests an attempt to download and execute further malicious content.

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
b70e341cc75ce98bdd90e11b3a2b5804f5ef1f673904cac4081c6890954e693c
pdf-embedded-script PDF raw stream script payload at offset 0x359 15942 bytes