Malicious PDF — malware analysis report

Static analysis result for SHA-256 c77cfb016c676ddf…

MALICIOUS

PDF

24.1 KB
MD5: 52d4a6f06b254409e9eacb36df6902bd SHA-1: 7634fb5cabb2d7f3e980d7b02b6acecd3e0387a4 SHA-256: c77cfb016c676ddf87c9ace2b93282cdf8d7dd8134a27f9f37e2e2a4972023c2
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample is a PDF document identified as malicious by ClamAV. Static analysis detected the use of XFA forms and specifically flagged the CVE-2010-0188 exploit targeting Adobe Reader's LibTIFF component. The embedded URL, while seemingly benign, is part of the XFA template structure and likely used in the exploit chain. The document body contains obfuscated JavaScript-like content which is typical for XFA exploits.

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/