Malicious PDF — malware analysis report

Static analysis result for SHA-256 7039b3e0f0252700…

MALICIOUS

PDF

99.5 KB
MD5: 96dbd7c2e6881dd749bc08efd0ee7df0 SHA-1: 060271dad22bfc09330d72eef8d8914ad9aab1dd SHA-256: 7039b3e0f0252700e4fdb18f5bd0e7a12f7b7a5c61295e4d149ccbdb3bcbeeed
116 Risk Score

Malware Insights

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

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader's handling of XFA forms. The exploit payload was extracted from a raw stream within the PDF. The presence of an embedded file and script payload, combined with the critical heuristic firing for the CVE, strongly indicates malicious intent for arbitrary code execution.

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
a8a9da77269ec5b2b37d47e91ab8b63c6a94f5d991e0e6ab141b2e50d157f9ec		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101178 bytes

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