Malicious PDF — malware analysis report

Static analysis result for SHA-256 867542820d7f57a7…

MALICIOUS

PDF

24.1 KB
MD5: 5c5772e002451c16f2c9a1b577bdc5c5 SHA-1: 13b5ac252183084e3383a143bd0ecad6fb2044f9 SHA-256: 867542820d7f57a73fbc13406c7818eab3dc40879cc00eebea92723c1010cb04
162 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form that triggers the CVE-2010-0188 exploit, a known vulnerability in Adobe Reader related to LibTIFF processing. This exploit is designed to achieve arbitrary code execution. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL is likely related to the exploit or a subsequent download stage.

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/