Malicious PDF — malware analysis report

Static analysis result for SHA-256 01cbbf3455c8370a…

MALICIOUS

PDF

90.0 KB
MD5: bb71d7c29f20acd9e3d5a5b8547e2805 SHA-1: 4bd37fb350063c3f63e2c7dc703a9afbc6793d17 SHA-256: 01cbbf3455c8370ae9b54164dee18605bd63e5433f70a382613c3fd3e6d8e140
180 Risk Score

Malware Insights

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

The file is a PDF that leverages the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms. Embedded JavaScript within the XFA form is used to execute the exploit payload. While the specific JavaScript code is obfuscated, its presence and the critical exploit firing indicate a clear intent to compromise the user's system upon opening the PDF. No specific malware family could be identified.

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-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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.
  • 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_pdf_script_0000023e.bin
228d13d3a20fe57b27607a6c58f469cf569eaef6931698b617b445f3a7a98861		 pdf-embedded-script PDF raw stream script payload at offset 0x23E 91393 bytes

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