Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cbd1eaacbdfe155…

MALICIOUS

PDF

24.1 KB
MD5: 0af15206fe2852a7dcc4fd95f95cf045 SHA-1: 5a317454c6698f65d1d12b7e61696b3731c4ef3e SHA-256: 3cbd1eaacbdfe1550c74e2018877cd07cd699571fc2a9b115f5091b6dfd38254
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 and exhibits characteristics of an XFA form. Static analysis detected a critical heuristic for CVE-2010-0188, indicating an exploit targeting Adobe Reader's LibTIFF component within XFA forms. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure. The exploit likely leads to the download and execution of a second-stage payload.

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/