Malicious PDF — malware analysis report

Static analysis result for SHA-256 73140fff43cc7cf0…

MALICIOUS

PDF

12.7 KB
MD5: 9e36ca2b5d4b2c4102c827de94d1a990 SHA-1: 36cbef2cc88bdb5cd60b5f55e25c856341b81ba7 SHA-256: 73140fff43cc7cf0b6c8a423a2ba110aa4806d0afee40655c962ca30f9f72670
168 Risk Score

Malware Insights

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

This PDF file exploits the CVE-2010-0188 vulnerability, which is known to affect Adobe Reader's handling of TIFF images within XFA forms. The embedded JavaScript, when executed, likely attempts to download and run a secondary payload. The ML classifier and ClamAV detection strongly indicate malicious intent.

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
a9972a11eee457b3377e8fc4dd701a6e97fa3a79ea4390d65ca0943c92257df9
pdf-embedded-script PDF raw stream script payload at offset 0x359 12323 bytes