Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c1c2025adb9cf89…

MALICIOUS

PDF

12.8 KB
MD5: 5c8d0dfcc62ff9aafbdf11342425bf38 SHA-1: 948d1142264d35e5cb0c17af716d15b6c960cf2f SHA-256: 7c1c2025adb9cf8999a86060061c9219b4d0d74fbdb88fe7cbc5ecbc826239c2
168 Risk Score

Malware Insights

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

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms. The embedded script, identified as JavaScript, likely contains the exploit code. ClamAV detection further confirms its malicious nature. The embedded URL is benign and likely a red herring.

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_00000384.bin
a912c950f20433b9036914c2f9015e9aafe2f4903dbcd8270d6406c3610729df
pdf-embedded-script PDF raw stream script payload at offset 0x384 12312 bytes