Malicious PDF — malware analysis report

Static analysis result for SHA-256 04074ea5987ebe0b…

MALICIOUS

PDF

24.1 KB
MD5: 44ccd9ae26de65d25afbc8734a0891b5 SHA-1: 0afe0492052682ad801c379bf4c4beeaa9427125 SHA-256: 04074ea5987ebe0bed6b547ffb2f0e90771c002c5713cdfa02ffc3439defe47c
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 in Adobe Reader's XFA forms. The embedded URL, while seemingly benign, is part of the XFA structure and could potentially be used in conjunction with the exploit. The primary attack vector is likely spearphishing attachment, leading to client-side exploitation.

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/