Malicious PDF — malware analysis report

Static analysis result for SHA-256 73f46f22e4d2328c…

MALICIOUS

PDF

12.6 KB
MD5: 53cfd4275101a2098054aa9931875c7e SHA-1: 59fcf928f70102dd087b8f54e831bdfbb765d3a5 SHA-256: 73f46f22e4d2328c616f6b1aa5e928dc188dd8dd33853fdbb3e68014f24d6f70
168 Risk Score

Malware Insights

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

The file is a PDF that leverages the CVE-2010-0188 exploit targeting Adobe Reader's XFA functionality. Embedded JavaScript within the XFA form is likely responsible for executing the exploit payload. The ML classifier and ClamAV detection strongly indicate malicious intent, with the primary goal being initial code execution via exploitation.

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
4742b9a127adfea063fbc36a74b2d2f1b2e57bde303d32ae7fc72329d5358b3a
pdf-embedded-script PDF raw stream script payload at offset 0x359 12209 bytes