Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc167b8dd21a3f40…

MALICIOUS

PDF

24.0 KB
MD5: 10b4c1113e10ae9c8a382a5a936d496a SHA-1: 6a572854262a8380fb7a7362509072e6579c4aeb SHA-256: bc167b8dd21a3f4044b30056c81c47eb4f5cc705606491727b8ec0e2c5a7a1e8
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1190 Exploit Public-Facing Application

The PDF file contains an XFA form that exploits CVE-2010-0188 in Adobe Reader. ClamAV also detected this file as Pdf.Exploit.Dropped-78. The embedded URL is likely related to the exploit delivery mechanism. The exploit targets a known vulnerability in older versions of Adobe Reader, commonly used for initial access.

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.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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/

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