Malicious PDF — malware analysis report

Static analysis result for SHA-256 15fe80f968b8126a…

MALICIOUS

PDF

87.0 KB
MD5: 66779ce74ec105813accbd951f4663a5 SHA-1: e000f0cb67427d70e9c3e118d1a665302e674a77 SHA-256: 15fe80f968b8126a8b02783d5c63810b4a6070a23f29417458c58fa518834039
116 Risk Score

Malware Insights

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

The sample is a PDF document that exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms. This exploit allows for arbitrary code execution, indicating a malicious intent to compromise the user's system. The presence of embedded XFA content and the ML classifier's high confidence further support this assessment. The benign URLs found are likely unrelated to the exploit itself.

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
93baf67736dcc5b07b5fef059bb445d23f6f83111982a70b6e265644ca1fec14		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 88379 bytes

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