Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c4b70eb1f6baf63…

MALICIOUS

PDF

24.2 KB
MD5: f065e9b47337aa36b02e59d8abbf8391 SHA-1: b21036995d9179ca32eb0b8c2716d6e40544fb65 SHA-256: 0c4b70eb1f6baf63d86aa9c8b69cbb62fb40cd1071e54dc23c3b65633c95e2b5
162 Risk Score

Malware Insights

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

The file is identified as malicious by multiple heuristics, including a critical finding for CVE-2010-0188, which targets Adobe Reader's handling of XFA forms and LibTIFF. An ML classifier also strongly flagged the PDF. The embedded URL, while seemingly benign, is present within the document structure.

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/

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