Malicious PDF — malware analysis report

Static analysis result for SHA-256 11989a1a301f78f1…

MALICIOUS

PDF

24.0 KB
MD5: ac032f5e1ae83ee2f33f202e46881922 SHA-1: ad0ba7d79b97d1c5ddbc948b10c1e6d345344192 SHA-256: 11989a1a301f78f1d538d822d9630dcc63525b43ebcc569b783b7fa40c889dc4
160 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by multiple heuristics, including a critical detection for CVE-2010-0188, an exploit targeting Adobe Reader's LibTIFF component. The presence of XFA form elements and the embedded URL suggest an attempt to leverage this vulnerability for initial execution. The ML classifier also strongly indicates maliciousness. The exact nature of the dropped payload is not discernible from the provided evidence.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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/