Malicious PDF — malware analysis report

Static analysis result for SHA-256 74c1fe51c99d7494…

MALICIOUS

PDF

4.1 KB
MD5: 3a5b7d4bd7f4d9dd817e9b0246664318 SHA-1: 54298b44db4a18e283918c1280920f5f6be1a56f SHA-256: 74c1fe51c99d74941b0f7aca2fdcb65144d19ff6770a7c8407385686f43423c3
116 Risk Score

Malware Insights

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

The critical heuristic firing for CVE-2010-0188 indicates the PDF exploits a known vulnerability in Adobe Reader's handling of XFA forms. This exploit is designed to achieve arbitrary code execution, which is typically used to download and run additional malicious content. The presence of an embedded file further supports this, suggesting it contains the secondary payload.

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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • 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://ns.adobe.com/xdp/1.0\ In PDF document text
    • http://www.xfa.org/schema/xfa-template/2.5/In PDF document text
    • http://www.xfa.org/schema/xfa-data/1.0/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
c02befe3a7982dda7f8d4689c135068ec122d38816da3750040be3fbf04e2a46		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xEA 12579 bytes

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