Malicious PDF — malware analysis report

Static analysis result for SHA-256 991a7575016329ac…

MALICIOUS

PDF

24.1 KB
MD5: 187d5e6572e8a1b7931db1f69ace2bf2 SHA-1: ba2f5f5b018d77e1c58965fe17efa1dc37fdec2d SHA-256: 991a7575016329acb13deb1525afb0af78b9af3effb1bd6206a77db0d81de0f2
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 file identified as malicious by ClamAV, specifically detecting an exploit targeting CVE-2010-0188 in Adobe Reader's XFA forms. The embedded URL points to an XFA template schema, further supporting the exploit vector. The file likely serves as a dropper or initial access vector for further malicious activity.

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/