Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bfb7c302c1107fc…

MALICIOUS

PDF

12.7 KB
MD5: ed226aabab1f3ef60c3dbebbfe1cd313 SHA-1: 7f48e60dbc9f6c214dd7384c50be9b178f8c30e3 SHA-256: 0bfb7c302c1107fcda60afda60d1e99490a6cc2d70ab34ed50a9c6a4d22df4ef
168 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript that is obfuscated and likely intended to download and execute a second-stage payload. Heuristics indicate a critical vulnerability exploit (CVE-2010-0188) and a high machine learning score, confirming malicious intent. The embedded script's complexity and obfuscation suggest it is designed to bypass defenses and achieve arbitrary code execution.

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
4f661f1561e652f51ca9deee0dac8ab1f0021905c0d9046277a5e05cc5a35634
pdf-embedded-script PDF raw stream script payload at offset 0x359 12281 bytes