Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f91b7d0ae431a0c…

MALICIOUS

PDF

24.2 KB
MD5: ceaa09076389bf2905f67cd318cdf569 SHA-1: aa851df19e9599d9093605e2ef4e6bb378638303 SHA-256: 8f91b7d0ae431a0ccdc736faf659f4f75b7b5d17326aac435bbc60695598766e
130 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ClamAV. Static analysis detected the use of XFA forms and a critical vulnerability, CVE-2010-0188, which is known to be exploited by Adobe Reader. The embedded URL, though seemingly benign, is part of the XFA template structure and likely used to load the exploit. The document body contains obfuscated JavaScript-like content which is typical for exploit delivery.

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/