Malicious PDF — malware analysis report

Static analysis result for SHA-256 62d75b60f8419d8b…

MALICIOUS

PDF

24.1 KB
MD5: e0bbfc63a4d50147e6471dc60e679568 SHA-1: 5d7c1cfed9e729083297c2f43b0041db95734418 SHA-256: 62d75b60f8419d8bb155f83abcfda87e6393d085ab5469908f1b2989f344673a
162 Risk Score

Malware Insights

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

The file is a PDF that contains XFA (XML Forms Architecture) content, which is known to be a vector for exploits. Static analysis detected a critical vulnerability (CVE-2010-0188) related to LibTIFF and XFA forms, indicating exploitation for client execution. The embedded JavaScript, although obfuscated, likely contributes to the execution of a secondary payload. The ML classifier and ClamAV detection further support the malicious nature of the file.

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/