Malicious PDF — malware analysis report

Static analysis result for SHA-256 7182953526c70c90…

MALICIOUS

PDF

24.1 KB
MD5: 20d9bdaf89ec885b8a8468a97fe1b11c SHA-1: 345e4bb15db8c20c83d4ea831ec4e99c70c91f07 SHA-256: 7182953526c70c90975e4344231b8ba58163d7f4b2638a9203612625b3ef19d3
162 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The sample is a PDF file identified as malicious by multiple heuristics, including a critical finding for CVE-2010-0188, which targets Adobe Reader's LibTIFF component. The embedded XFA form and the obfuscated JavaScript within the document body strongly suggest an exploit designed to achieve code execution. The script appears to be assembling a URL, likely for downloading a second-stage payload, though the exact URL is heavily obfuscated.

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/