Malicious PDF — malware analysis report

Static analysis result for SHA-256 1823fd16c073893e…

MALICIOUS

PDF

75.8 KB
MD5: 2473f6cc06cd644fb1d2a5967ac1e0f7 SHA-1: 1c7624cc63a7339191a6305b21306b7daf380196 SHA-256: 1823fd16c073893e01fbb3295fdce66048e259143373facc11f0be9b26376e42
168 Risk Score

Malware Insights

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

The file is a PDF that leverages the XFA form functionality to exploit CVE-2010-0188 in Adobe Reader. An embedded JavaScript script is present, which is likely responsible for executing a malicious payload. The script's obfuscated nature and the exploit's presence indicate a high likelihood of malicious intent, aiming to compromise the user's system.

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
  • 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_pdf_script_00000286.bin
8590ccd2c30830fa737cb0161ea05634c7a0f32a578bae67fee1f5f2bbd1292f		 pdf-embedded-script PDF raw stream script payload at offset 0x286 76948 bytes

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