Malicious PDF — malware analysis report

Static analysis result for SHA-256 148f6dd5aab09dd4…

MALICIOUS

PDF

12.6 KB
MD5: c072fc325e890849d5b1ee06067e951f SHA-1: b62f13e05bc304e314a942953711a1c3efc066ed SHA-256: 148f6dd5aab09dd4f9e95df24cf01e2fb6e4e60c8dd40ed4cf480cf9dd880e40
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 the CVE-2010-0188 vulnerability in Adobe Reader. The embedded JavaScript attempts to download and execute a second-stage payload, although the full script content is truncated. 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
a05e8adf3dd1aab22e6f02d71206ee591ba002f6a6378fa15d55bf89e86ccff1
pdf-embedded-script PDF raw stream script payload at offset 0x359 12221 bytes