Malicious PDF — malware analysis report

Static analysis result for SHA-256 605247a35b032371…

MALICIOUS

PDF

75.8 KB
MD5: ef50f02be54abea1ca5866d979304f80 SHA-1: 7196bfde94b360938c93300e7bf1117711b3c0d0 SHA-256: 605247a35b0323713412894090a8444ac7c5fe0097cafa77d0571daebf62a7e7
168 Risk Score

Malware Insights

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

The PDF file contains embedded XFA (XML Forms Architecture) data, which is known to be a vector for exploits. Heuristics indicate a critical vulnerability, CVE-2010-0188, related to Adobe Reader's LibTIFF processing within XFA forms. The embedded script, though truncated, appears to be JavaScript and likely attempts to download and execute a second-stage payload, leveraging the identified exploit.

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
61fbff75e04b7c455fe82e3cb110c4a2bfd964ff7e72ae59517c03769e259e6d		 pdf-embedded-script PDF raw stream script payload at offset 0x286 76948 bytes

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