Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a55f140afa2671c…

MALICIOUS

PDF

12.8 KB
MD5: 5bb2870fdb43bfa37de494e9d5a87f1f SHA-1: 44c16af2fd8ff44a6eb409d785beb4aec48da939 SHA-256: 2a55f140afa2671c8e84f896b518ea4e3414e5744845714977458d7d7f1d1287
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.001 Phishing: Spearphishing Attachment

The sample is a PDF file that leverages an XFA form to trigger the CVE-2010-0188 exploit, targeting Adobe Reader. ClamAV identified it as Js.Exploit.HTML-30, indicating a JavaScript-based exploit. The embedded URL is likely related to the XFA template, but the primary malicious action is the exploit execution.

Heuristics 4

  • 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: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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/