Malicious PDF — malware analysis report

Static analysis result for SHA-256 0adc5247816d22b5…

MALICIOUS

PDF

75.8 KB
MD5: 36f83354bf75106ce6226e5cc65967f8 SHA-1: cec7579f347d8384e39867c3fbc6de2229aa9449 SHA-256: 0adc5247816d22b59d03f7346c933c5aaf8be06d5c48600b2f774800a627b7d9
168 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 LibTIFF component. The embedded XFA script contains obfuscated JavaScript, which is likely responsible for downloading and executing a second-stage payload. The script's complexity and the critical nature of the exploit indicate a malicious intent 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
5aaac9867b7037633e4d2dd269f84ace71a95132d925afcda980afd9fbf43c99		 pdf-embedded-script PDF raw stream script payload at offset 0x286 76870 bytes

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