Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8e0b66b28cb75fd…

MALICIOUS

PDF

24.1 KB
MD5: f1238d9141a7b0baf25137f9c7611709 SHA-1: e9fa9d8cd3edaa7a94d4b3b389c033e76f08d7a9 SHA-256: d8e0b66b28cb75fd429beabed4b61300593affb99f2b6b5019d7e53415094971
130 Risk Score

Malware Insights

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

The sample is a PDF file that contains an XFA form and exploits the CVE-2010-0188 vulnerability. This exploit targets Adobe Reader and is known to be used for arbitrary code execution. The embedded URL, while not directly malicious in reputation, is associated with XFA templates, further supporting the exploit vector. The heuristic firings strongly indicate a client-side exploit targeting a known Adobe Reader vulnerability.

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/