Malicious PDF — malware analysis report

Static analysis result for SHA-256 a002d399ff371e6b…

MALICIOUS

PDF

24.4 KB
MD5: 3b0d694394240a0f7d1d1c382da8bb77 SHA-1: c3516dd36430342315eff8fa050f426f8e1bad43 SHA-256: a002d399ff371e6b5babe75998a890f541bd5b4de90c06c8c1e9f6c06b10bd6f
128 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file that contains an XFA form, which is a known vector for exploiting vulnerabilities. Specifically, the 'CVE_2010_0188' heuristic indicates exploitation of a LibTIFF vulnerability within Adobe Reader. The 'CLAMAV_DETECTION' heuristic for 'Js.Exploit.HTML-30' further suggests JavaScript-based exploitation. The embedded URL is likely related to the exploit or a subsequent download stage. The combination of these factors strongly suggests an exploit attempting to download and execute a second-stage payload.

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/