Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d4f22cb3ad7289b…

MALICIOUS

PDF

101.6 KB
MD5: fc1cfc040f05ae3b4f7dbc23e27c3105 SHA-1: 4a8009d5d4e81d781b8b89e9bc8ebd71b4da5df6 SHA-256: 6d4f22cb3ad7289b5ae20c410bb648d107cd4f3f4a3e897e999bd1ee09cf4dbb
168 Risk Score

Malware Insights

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

The PDF file 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, indicating a malicious intent to compromise the user's system. The embedded script, though truncated, suggests an attempt 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_00000346.bin
15b6aefa5b98b1fd1a73f85db7d80e0d7de2d482ae5a6f7e8e7cb6c0864db8db
pdf-embedded-script PDF raw stream script payload at offset 0x346 103353 bytes