Malicious PDF — malware analysis report

Static analysis result for SHA-256 786ae118c3d83223…

MALICIOUS

PDF

16.2 KB
MD5: b6420c138fcfa84f8390ba18c0e1ffbf SHA-1: 636e2ec64fb337df87e50cb86dadee48bea3a021 SHA-256: 786ae118c3d8322391a9b7acd6e7b91903680d67c6403f41bb78a90b2bd03f77
168 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript that is likely intended to exploit the CVE-2010-0188 vulnerability in Adobe Reader. This exploit is designed to execute arbitrary code, as indicated by the critical heuristic firings and the ML classifier. The embedded script, though truncated, appears to be constructing a string or payload, typical of exploit delivery mechanisms.

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
32d12337a3695828643c001e962f8cfa92c9ccbdf16fb5228b62447cc4361474
pdf-embedded-script PDF raw stream script payload at offset 0x359 15885 bytes