Malicious PDF — malware analysis report

Static analysis result for SHA-256 b24c5d98869392f4…

MALICIOUS

PDF

24.1 KB
MD5: ea3dedbae5ad63e1d083bc14a6650e25 SHA-1: 097152805e88d416b64a228fe6aa53ac563bf0d7 SHA-256: b24c5d98869392f4868d24eae7abc4948109a8e54da08a2e9b434273ec802e9e
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.001 Phishing: Spearphishing Attachment T1204 User Execution

The sample is a PDF document identified as malicious by ClamAV and heuristics. Critical heuristic firings indicate the exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. The embedded URL, while not directly malicious, is associated with XFA templates, further supporting the exploit vector. The document body content is obfuscated and does not provide further clues on the specific lure.

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/