Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeabfa665429d4b1…

MALICIOUS

PDF

24.1 KB
MD5: 2b922e85ac95e09c667ee3c7323216c3 SHA-1: 1575ffb0429ab784fc59809128648c568f1a5445 SHA-256: eeabfa665429d4b15b1d18988fcf5e93b44bf653a82d4dc96e705bab41b9b422
130 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file identified as malicious by ClamAV, specifically detecting 'Pdf.Exploit.Agent-36821'. Static analysis reveals the exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF and XFA forms. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure. The primary attack vector is the exploitation of the client-side vulnerability to execute arbitrary code.

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/