Malicious PDF — malware analysis report

Static analysis result for SHA-256 98ad267555e969e8…

MALICIOUS

PDF

24.2 KB
MD5: f2e95173fcaa4a40d5184291978c2805 SHA-1: 4b6afe210a3d928509e6f2dc936217eb72fab92f SHA-256: 98ad267555e969e87b8cd4b971f48e4dfee63883b4861fa6cd2c7e10bc8aa8af
130 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by ClamAV, specifically detecting the 'Pdf.Exploit.Agent-36821' signature. Static analysis indicates the presence of an XFA form and a critical vulnerability exploit for CVE-2010-0188, which targets Adobe Reader. The embedded script, though obfuscated, appears to be involved in the exploit execution, likely leading to the download of a second-stage payload. The presence of an embedded URL further supports this delivery mechanism.

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/