Malicious PDF — malware analysis report

Static analysis result for SHA-256 24b541670f7f8f3b…

MALICIOUS

PDF

14.3 KB
MD5: 33a56f19882eba5b55a56dbec6c27d15 SHA-1: da66d37f27826f5b93bf9465d50196adbb64669e SHA-256: 24b541670f7f8f3b221a4199aeee09961c3da42c64c90743d001adc69e44f9fa
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The sample is a PDF file that leverages XFA forms to exploit CVE-2010-0188 in Adobe Reader. The embedded JavaScript, when decoded, appears to be designed to download and execute a second-stage payload. The ClamAV detection 'Js.Exploit.HTML-30' further supports the malicious nature of the embedded script.

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/

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