Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d79c9731170f538…

MALICIOUS

PDF

102.0 KB
MD5: d7211c5bac7f1135e4b2d9291455857e SHA-1: 35a5589e40ef9d3aca24f496e1cf0a7db744edf1 SHA-256: 5d79c9731170f538be73eb7e042cbc482a397d75cc0a6598cf193e6d84ca7526
168 Risk Score

Malware Insights

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

The PDF file contains embedded XFA content and triggers the CVE-2010-0188 exploit, indicating it's designed to execute arbitrary code. The embedded JavaScript, though obfuscated, likely contributes to the exploitation process by downloading or executing a second-stage payload. ClamAV also detected this as a malicious PDF 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_00000346.bin
8db483232c7a897ddd5a7dd27809bb5467485cdf57d6a97f7ef76bb353ffc2c1
pdf-embedded-script PDF raw stream script payload at offset 0x346 103722 bytes