Malicious PDF — malware analysis report

Static analysis result for SHA-256 0386f93a59e18b1f…

MALICIOUS

PDF

12.7 KB
MD5: a785e89c5f0f9ab90b0c6260fb707776 SHA-1: 8e0c8492f47eaa0eb865336472bc4887df6f9322 SHA-256: 0386f93a59e18b1fe850d7da0fd9e0d159e327fb425e4f526c033d6ba944395e
168 Risk Score

Malware Insights

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

The PDF file contains embedded XFA content that exploits CVE-2010-0188 in Adobe Reader. The embedded JavaScript, when reconstructed, appears to be designed to download and execute a second-stage payload. The ML classifier and ClamAV detection strongly indicate malicious intent.

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
ec92af023ffe99f45cdba7b2c7582aa9b57742503e803d0a11b7ab50b9385928
pdf-embedded-script PDF raw stream script payload at offset 0x384 12276 bytes