Malicious PDF — malware analysis report

Static analysis result for SHA-256 68067c91f79f309a…

MALICIOUS

PDF

99.9 KB
MD5: 2849ca15dd8231ec2f85cf367cbaed39 SHA-1: fe60a7ab2383070489252b8c6bf74aa4a064342a SHA-256: 68067c91f79f309a1fbb7a253fb3351e78a9b2a8755d45d6e366f9370a711b77
116 Risk Score

Malware Insights

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

This PDF file is identified as malicious due to the critical heuristic firing for CVE-2010-0188, an exploit targeting Adobe Reader's LibTIFF component. The presence of an embedded script payload and the ML classifier's high confidence further support this assessment. The exploit likely facilitates the execution of a secondary payload, although the specific nature of that payload cannot be determined from the provided 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
9c1311c272942bf978f126f943b5429f3ca102f21f360925e1cd66f80ca67877		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101542 bytes

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