Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b1e600353b47aa0…

MALICIOUS

PDF

12.6 KB
MD5: e27d3d715aa5d2167a557e483267e7b0 SHA-1: 900a689ece8ac7cc4792935e63e6421cf295903e SHA-256: 0b1e600353b47aa04d47cdf49c0c767760b43826fa01c7c1948118b827155e05
168 Risk Score

Malware Insights

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

The file is a PDF that exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. The embedded JavaScript, though heavily obfuscated, is likely responsible for executing the exploit. The ClamAV detection and ML classifier strongly indicate malicious intent, pointing towards a client-side exploit for 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
8f6da60b9d0196afa6ed3196b321870b014a0b8fb06f2f2da68d8f707319d741
pdf-embedded-script PDF raw stream script payload at offset 0x359 12185 bytes