Malicious PDF — malware analysis report

Static analysis result for SHA-256 0545e0bbb296be4d…

MALICIOUS

PDF

16.1 KB
MD5: 0b66d819450c82d16644c7d73bbbb258 SHA-1: 74fff4cf4534a0c77dee9001810280f0195b04d7 SHA-256: 0545e0bbb296be4d3e5b7e712c3598759b1533d20088f97e6c075912389eed84
168 Risk Score

Malware Insights

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

The PDF sample contains embedded JavaScript and triggers a critical heuristic for CVE-2010-0188, an Adobe Reader exploit. The embedded script, though truncated, appears to be JavaScript and likely contributes to the exploitation process by downloading or executing a secondary payload. The ML classifier also strongly flagged this PDF as malicious.

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_00000354.bin
51c51c3e87bc32e5052c3663da16d52df4f476dc063504ff15c2bc6395456dcf
pdf-embedded-script PDF raw stream script payload at offset 0x354 15752 bytes