Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e8d7949450f508f…

MALICIOUS

PDF

16.2 KB
MD5: cf29638bde51e4b42640d75bec92b597 SHA-1: 464ac66c86f1d6472b03ad32447a0d9b12c0140d SHA-256: 0e8d7949450f508fef98b00f5e84ea6f53f4365d7fde7b63b07344a5c3805b0a
168 Risk Score

Malware Insights

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

The file is a PDF that exploits the CVE-2010-0188 vulnerability in Adobe Reader's handling of LibTIFF images within XFA forms. An embedded JavaScript payload was extracted, which is heavily obfuscated but likely responsible for executing the exploit. 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_00000359.bin
7aa7ec708ca02065d961f6d27457071c4d1952fe13d394fef3ed40ff3515ed1d
pdf-embedded-script PDF raw stream script payload at offset 0x359 15910 bytes