Malicious PDF — malware analysis report

Static analysis result for SHA-256 11f5682325fdfabb…

MALICIOUS

PDF

102.0 KB
MD5: d758b7e2eba6f3aaea6d084897a99c5e SHA-1: 2803b598d4a89c0a0e499017a5686d037957dc98 SHA-256: 11f5682325fdfabbe9b756440d057ee959f37dce1e10f01542e48492ffa5f0ae
168 Risk Score

Malware Insights

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

The PDF file contains embedded XFA (XML Forms Architecture) data, which is exploited via CVE-2010-0188. The embedded script, identified as JavaScript, is likely responsible for downloading and executing 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_00000346.bin
93224172f4d495a5393e00dd6134f91f0d4f6c67b61260f3ca6c5614b193a9bf
pdf-embedded-script PDF raw stream script payload at offset 0x346 103770 bytes