Malicious PDF — malware analysis report

Static analysis result for SHA-256 4856f97924c98f1d…

MALICIOUS

PDF

24.2 KB
MD5: aa139514281d2b3a0b56c5804dbce064 SHA-1: b03e7e4d8ad4bc05849224bee609bb0c14524f9e SHA-256: 4856f97924c98f1d122687e16c5b0dd1d0ed31d03e43d2d61794fc880547bc91
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The sample is a PDF file that contains XFA (XML Forms Architecture) content, which is known to be a vector for exploits. Heuristics indicate a critical vulnerability, CVE-2010-0188, which targets Adobe Reader's handling of LibTIFF images within XFA forms. This exploit is likely used to download and execute a second-stage payload. The embedded URL is likely part of this malicious chain.

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/