Malicious PDF — malware analysis report

Static analysis result for SHA-256 0de9ae376b4519fa…

MALICIOUS

PDF

99.8 KB
MD5: 62df2685aca0619518ab3809098852d7 SHA-1: 47e21825ac9e4e3391ec95aef1dd957e1efd2ba2 SHA-256: 0de9ae376b4519fa4e09d28d04d0f16f2fdf2a81e9d92bb43a1a91dba51e86c8
116 Risk Score

Malware Insights

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

This PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms and LibTIFF images. The heuristic firings indicate the presence of an embedded exploit payload within the XFA stream. The ML classifier strongly flags this PDF as malicious. The exploit likely facilitates the execution of a secondary payload, although no specific download URLs or script content were directly extracted.

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
9af7d9bed10243eb7303deeff9767d5aefc6f600b9bfea1215bca2925a5b3361		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101454 bytes

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