Malicious PDF — malware analysis report

Static analysis result for SHA-256 1967f818d49ea027…

MALICIOUS

PDF

99.8 KB
MD5: e743d0e2869ec93f5f24a0647ac0a6df SHA-1: 01d542b17d57b6a4fd57642522d23c8b4c552ad1 SHA-256: 1967f818d49ea0279f145b74129a88263f3b36c13a556e8906b8766b36c3d004
116 Risk Score

Malware Insights

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

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms. This exploit allows for the execution of arbitrary code, likely to download and run a second-stage payload. The embedded script, though obfuscated, suggests JavaScript execution, further supporting the exploitation of client-side vulnerabilities.

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.
  • 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
15f4cf44035eb41280feb72d53c0b22f95231c98f9ad68814f7656bcad649a41		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101483 bytes

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