Malicious PDF — malware analysis report

Static analysis result for SHA-256 691d8ffe93ab4c53…

MALICIOUS

PDF

24.1 KB
MD5: be300d953cc956109662fef5e7106064 SHA-1: f9ecb530df3d5dee7a5e28455d21eaf01a591c57 SHA-256: 691d8ffe93ab4c531d9191b7674ec14c123c5e11200d7949705df7c92c67e70a
162 Risk Score

Malware Insights

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

The file is identified as malicious by multiple heuristics and an ML classifier, specifically flagging the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms. This indicates an attempt to achieve arbitrary code execution upon opening the document. The embedded URL, while seemingly benign, is part of the XFA template structure and is included as a potential indicator.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/