Malicious PDF — malware analysis report

Static analysis result for SHA-256 3444cb787516334a…

MALICIOUS

PDF

99.6 KB
MD5: 08e505bc33dc18d5ae4ca7f5ffa0d532 SHA-1: cb22f2a6bd94d970f376ecb0bb70619cc5bf709b SHA-256: 3444cb787516334a1f2f245373b4145406624798183b210d3fad82dcd9780422
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file is identified as malicious due to the exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. The heuristic firings indicate an embedded script payload within the PDF stream, which is characteristic of exploit documents designed to download and execute further malicious content. The ML classifier strongly supports the malicious verdict.

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/
    • 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
dd94c81c1175a761a4e29dfafbe36b336c7e174de4ef36130bb7ee7b443490a6		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101293 bytes

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