Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cdc06c28b027873…

MALICIOUS

PDF

73.2 KB
MD5: 447f90b450772bd6a2fb610f3675be2a SHA-1: 7a22357fb2ee33932319c037870cdb3c1e3d353c SHA-256: 5cdc06c28b02787366e3fc7507f84807d9d40f96c1d84c69b28d1128850a4bc9
168 Risk Score

Malware Insights

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

The PDF sample contains embedded JavaScript within an XFA form, which is designed to exploit the CVE-2010-0188 vulnerability in Adobe Reader. This exploit is capable of executing arbitrary code, indicated by the critical heuristic firings and ClamAV detection. The embedded script, though truncated, appears to be obfuscated JavaScript, likely intended to download and execute a second-stage payload.

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
82042ad52e77559a850ac7d13c80f8334c78c5e4c8ecce01c338dbec2901934c
pdf-embedded-script PDF raw stream script payload at offset 0x34E 74192 bytes