Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3a0346bd21c4ff5…

MALICIOUS

PDF

24.1 KB
MD5: 1519caa7e10408966695dfafdf73660d SHA-1: 434e42e6ed33b46a497491a762d508d55dd542f3 SHA-256: b3a0346bd21c4ff5e7531442f19b4888ce7c9d23d709360863db3363c40d47ac
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Malicious File

The sample is a PDF file that triggers a critical heuristic for CVE-2010-0188, an exploit targeting XFA forms and LibTIFF in Adobe Reader. ClamAV also detected it as malicious. The embedded URL, while seemingly benign, is likely part of the exploit chain. The document body contains obfuscated JavaScript-like content which is typical for XFA exploits.

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-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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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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