Malicious PDF — malware analysis report

Static analysis result for SHA-256 b94a54844c416a6f…

MALICIOUS

PDF

24.2 KB
MD5: d5817ee174d85bbee4cf2271f9e7992f SHA-1: 9eb997e928f57466a2a0d9a9203038a1f0b8ae29 SHA-256: b94a54844c416a6fceb4ea7eb025572ad23fd11921c44886c5c1256268b96a22
128 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Phishing: Spearphishing Attachment

The sample is a PDF document identified as malicious by ClamAV. Static analysis detected the use of XFA forms and specifically flagged the CVE-2010-0188 exploit, which targets a vulnerability in Adobe Reader's handling of XFA form data. The embedded URL, while seemingly benign, is part of the XFA structure and likely related to the exploit chain. The document body contains obfuscated JavaScript-like code, further indicating malicious intent.

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: Pdf.Exploit.Agent-36821 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36821
  • 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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