Malicious PDF — malware analysis report

Static analysis result for SHA-256 10b51a76a23e5b26…

MALICIOUS

PDF

12.8 KB
MD5: 0d64bd2b5bddc5151b768011fa348148 SHA-1: 17cc67040cc2372ef4e328c1b41ac778f416e15c SHA-256: 10b51a76a23e5b26d1eab6339542ffa26adb17442accfabedbe2d2d8cf294fda
168 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript that exploits the CVE-2010-0188 vulnerability in Adobe Reader. The script's purpose is to download and execute a secondary payload, as indicated by the ML classifier and ClamAV detection. The embedded URL, while benign, is present in the document structure.

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_00000384.bin
3437fa54ced0a42bd584ed345a2f27ad122707970ab2e29fa3bf69bc50a2e9d3
pdf-embedded-script PDF raw stream script payload at offset 0x384 12312 bytes