Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f49023283645d18…

MALICIOUS

PDF

16.0 KB
MD5: e2decb5c5ff68be605a48c8e0b58ba32 SHA-1: fa80f1123780ba78164b51d53feb94cba464c789 SHA-256: 6f49023283645d186d0e89f50bd18508988713e62ed0c96cfb835aef0d58fb2e
168 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript within an XFA form, which is known to be exploited by CVE-2010-0188. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded script, although obfuscated, likely contains logic to download and execute a second-stage payload, leveraging the XFA exploit.

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_0000034e.bin
e4b6f6a02ee9bafe2b0014c1fca4129d2c168ac7af791da6e50c538c2862f666
pdf-embedded-script PDF raw stream script payload at offset 0x34E 15701 bytes