Malicious PDF — malware analysis report

Static analysis result for SHA-256 82bebb7fd62cc028…

MALICIOUS

PDF

24.1 KB
MD5: e091e8a14fff7721126d6b23f2ee547c SHA-1: 1fdcd533da061c47b05ce334aa781ed9d1d1bd99 SHA-256: 82bebb7fd62cc0282b38da0b3ab1e31c9598f79e636ec4eca367739dccf7da72
130 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by ClamAV, specifically detecting an exploit targeting CVE-2010-0188 within XFA forms. This exploit is known to target Adobe Reader and leverage the LibTIFF library. The embedded URL, while not directly malicious, is associated with XFA templates, reinforcing the exploit vector. The attack pattern involves tricking the user into opening a malicious PDF that exploits a known vulnerability.

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/