Malicious PDF — malware analysis report

Static analysis result for SHA-256 facaa31f6a0a1cc1…

MALICIOUS

PDF

24.1 KB
MD5: 870d6543188c6738142f9343b0d52fcc SHA-1: 6fea6c30db53eb76a4f21b903a46d84cd8d05e86 SHA-256: facaa31f6a0a1cc149ac0c86b1c8a6d62f2369f27cea862ba2c19f100fed5f46
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment

The sample is a PDF file identified as malicious by ClamAV, specifically detecting an exploit targeting CVE-2010-0188. This exploit leverages XFA forms and a vulnerability in LibTIFF processing within Adobe Reader. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure, indicating a potential delivery vector for further malicious content.

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/