Malicious PDF — malware analysis report

Static analysis result for SHA-256 af0a3377614c84a6…

MALICIOUS

PDF

24.0 KB
MD5: cc3b5c2d4a40714a010fddf6b985ab6e SHA-1: 834afe2990d9cf8545b94e3caf8a3d8916b09d8e SHA-256: af0a3377614c84a69db717debb9558e4aa4b5848a69a93842441f2929c8e87f9
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Malicious File

The sample is a PDF file that contains an XFA form, which is known to be a vector for exploits. Specifically, the CVE-2010-0188 heuristic indicates a vulnerability in Adobe Reader related to LibTIFF processing within XFA forms. The embedded URL, while not directly malicious, is associated with XFA templates. The document body contains obfuscated JavaScript-like content, likely part of the exploit chain, which attempts to leverage the 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/