Malicious PDF — malware analysis report

Static analysis result for SHA-256 0edaf63265123abf…

MALICIOUS

PDF

12.8 KB
MD5: 4afed73fc8f1a09fab911bb4d03a0b89 SHA-1: 541daa242e19b60f43a54b52f903f07067c56230 SHA-256: 0edaf63265123abf7568ca73e4372a1fa09dd2155ee55d01cdafa183f972d41f
168 Risk Score

Malware Insights

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

This PDF file contains embedded JavaScript within an XFA form, which is known to be exploited via CVE-2010-0188. The embedded script is designed to download and execute a second-stage payload, indicated by the ML_NYX_PDF_MALICIOUS heuristic and ClamAV detection. The script's obfuscated nature and the exploit's nature suggest a high likelihood of malicious intent for further system compromise.

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
54f2fabbba8b42adadf0b7663aa57f2fe7c6989585c6683aa6b39fe1427d0223
pdf-embedded-script PDF raw stream script payload at offset 0x384 12324 bytes