Malicious PDF — malware analysis report

Static analysis result for SHA-256 09d190b1054082a3…

MALICIOUS

PDF

81.9 KB
MD5: b05ac7499eb5cb9ca68bc09a6eed0316 SHA-1: 377ac3d1b35880f787a72ab351ab605d4f8267e6 SHA-256: 09d190b1054082a3ad62951cc221f6496d33fd6ef5b65c203deb3339a3be4bec
156 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 vulnerable to CVE-2010-0188, a critical vulnerability in Adobe Reader. The embedded script within the XFA form is likely responsible for triggering this exploit, which typically leads to the execution of a secondary payload. No specific malware family could be identified.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • 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_file_obj0008.bin
ab10c1961ab68b47b00c935356632ec186f41e879138d16d567939eed6abbf91		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 83167 bytes

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