Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b0e40070e6c119b…

MALICIOUS

PDF

90.1 KB
MD5: 6f6eb869113f39096eafb32fcb574b96 SHA-1: a2011e5fa5ce8c647b4ece508afebeebcf92085d SHA-256: 5b0e40070e6c119be1de19a94806f590d53a764b4a1ca025c30db4d0200f5b01
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) content, which is known to be a vector for exploits. Heuristics indicate a critical vulnerability, CVE-2010-0188, related to Adobe Reader's handling of XFA images. The embedded script, although obfuscated, is identified as JavaScript and likely responsible for executing the exploit payload. The benign URLs present do not appear to be malicious.

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_0000023c.bin
9b99345d1340f6335c6a912598bf84dfbbc4bf1fba9413bea2918c43d44dd741		 pdf-embedded-script PDF raw stream script payload at offset 0x23C 91530 bytes

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