Malicious PDF — malware analysis report

Static analysis result for SHA-256 60b9e6691006ee7f…

MALICIOUS

PDF

12.6 KB
MD5: 2c37706a3001579b8c974961e7cc12ad SHA-1: 7f2e23095352652e7879a1b750a6cdcfe042e92f SHA-256: 60b9e6691006ee7fac84c7a8462d05c55fef0a7b6f056fa32d5e39ae84379fc2
168 Risk Score

Malware Insights

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

The file is a PDF that leverages the XFA form functionality to exploit the CVE-2010-0188 vulnerability in Adobe Reader. The embedded script, which appears to be JavaScript, is responsible for executing the exploit payload. While the script is heavily truncated, its presence and the critical heuristic firings strongly indicate an exploit attempt aimed at client 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
892241f521868feb9795c3a49b8c29de5e0a95692c4089b47dc51e7d2fe4c390
pdf-embedded-script PDF raw stream script payload at offset 0x359 12197 bytes