Malicious PDF — malware analysis report

Static analysis result for SHA-256 762f275569bcf94d…

MALICIOUS

PDF

24.0 KB
MD5: fa8deaec0e49ced95fd4d1f5fa240d43 SHA-1: f02e244051af5fad911b90c2db68ef0a73ff3f61 SHA-256: 762f275569bcf94d5eb32adea28f512a00c2390ea512fa6a404c68fdb8ebb886
162 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is a PDF file identified as malicious by multiple heuristics and ClamAV, specifically detecting an exploit for CVE-2010-0188 related to XFA forms. The embedded URL, while seemingly benign, is present within the document's structure. The obfuscated document body content suggests an attempt to hide malicious JavaScript or other executable content, which is typical for exploit-laden PDFs aiming to download and execute further stages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/