Malicious PDF — malware analysis report

Static analysis result for SHA-256 004672a612e057c0…

MALICIOUS

PDF

78.7 KB
MD5: 09ee122d3b26da2dbccfbc9ebe526eb4 SHA-1: 6dde16ff217bcd4c5209a7a3c6cb1cbc30160a28 SHA-256: 004672a612e057c0e165809d8b0b79da72dda2130d7930cac031d9eb3a73fa1a
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Exploitation for Public-Facing Application T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. This exploit likely leads to the execution of a malicious payload, as indicated by the critical heuristic firing and the ML classifier's high confidence. The embedded file and script payload markers further suggest the file's malicious intent 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.
  • Embedded script payload in PDF stream medium 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 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 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/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
07e229bcb5f5afe47b4edcd55782b7be601d913eaaac2b995553ef1179895fe0		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 79815 bytes

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