Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e9b97061e3ecdd4…

MALICIOUS

PDF

101.9 KB
MD5: 478c1b773fcc4d19314b493588012ddf SHA-1: 6cec0ddc34b5fa3b29d60b2f4bb87f77b7dcffbb SHA-256: 0e9b97061e3ecdd4a8101270a1987d6d75d72a78c96b10f9d38c5f3662dff167
168 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by multiple heuristics, including a critical alert for CVE-2010-0188, an Adobe Reader LibTIFF XFA image exploit. The embedded script, although truncated, contains JavaScript code that appears to be part of the exploit mechanism. The ML classifier also strongly flagged this PDF as malicious.

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_00000346.bin
7a0a166ea9364e9653c8c2cb32cc589ac904e2ecc758e234f57cbe5a4e4d3b0f
pdf-embedded-script PDF raw stream script payload at offset 0x346 103592 bytes