Malicious PDF — malware analysis report

Static analysis result for SHA-256 8066152e1d56b483…

MALICIOUS

PDF

12.6 KB
MD5: b01b03676430615e30cb3c1d518b43d8 SHA-1: 3e7f5bd74921efdb7fd13a04e42a3465702ba9cc SHA-256: 8066152e1d56b483cf3aa06a6cec0f5c42494597cef6207d4b69717728ace119
168 Risk Score

Malware Insights

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

The sample is a PDF file that leverages the CVE-2010-0188 vulnerability, known to affect Adobe Reader's LibTIFF component, to execute embedded code. The embedded script, identified as JavaScript, is responsible for initiating the exploit. While the script's full functionality is truncated, its presence and the critical heuristic firings strongly indicate an exploit attempt.

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
386098223fcf9c08f297e0033fe1925e8b3f0f154f0289fea578688e8601f737
pdf-embedded-script PDF raw stream script payload at offset 0x359 12185 bytes