Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e84f33cef8a7827…

MALICIOUS

PDF

12.8 KB
MD5: 611550c58c3a5e1edee23f9c36608027 SHA-1: 92fc0bd2577ba1414a2dc7ed0cf64c1718c52c96 SHA-256: 0e84f33cef8a782736c905eccc9eb4312e30b6b71b9983c56143e190ad729c4f
168 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form that exploits CVE-2010-0188 in Adobe Reader. This exploit likely leads to the execution of embedded JavaScript, which is 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
243c0d8e4350cd47c85ee75b3d2b4f8d4f1d24be6cce828f318b89680e9ff5a1
pdf-embedded-script PDF raw stream script payload at offset 0x384 12312 bytes