Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d3a6611fc49c6f8…

MALICIOUS

PDF

79.1 KB
MD5: 1e114ebb6aeea3a0152d9de764b8a58b SHA-1: 6dbecfd6933539a4cd28aafc19443de6f5ae0e05 SHA-256: 6d3a6611fc49c6f8c22bdfcdef6074a8ff053d5e47f8969e44c62ad4f51ee98b
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains an embedded script payload and triggers the CVE-2010-0188 exploit, indicating it is designed to execute arbitrary code upon opening. The ML classifier strongly flags this PDF as malicious. The exploit likely facilitates the download and execution of a secondary payload, though no specific URLs for this are present in the extracted evidence.

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
5af8626c7fc09256d65f4afe2a0dcc2dc2bc0af23ecab1b506a80f3011e660c0		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80229 bytes

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