Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b4a05bac5b532a7…

MALICIOUS

PDF

12.8 KB
MD5: 920fead93be8d7436cd8d400643280c2 SHA-1: 0eaf7f0d6d655e007d48b09464aa61031ea50cb6 SHA-256: 0b4a05bac5b532a775e587af802c6a4f2399254c85775bdd243b022d86b42341
168 Risk Score

Malware Insights

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

The PDF sample contains an embedded XFA form that exploits CVE-2010-0188 in Adobe Reader, a known vulnerability for client-side code execution. The embedded JavaScript script, though truncated, is indicative of a malicious payload designed to run when the PDF is opened. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

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
3abcc70a064d5e774a7fc776cebba91e934716b527020366c41286f93169f098
pdf-embedded-script PDF raw stream script payload at offset 0x384 12288 bytes