Malicious PDF — malware analysis report

Static analysis result for SHA-256 69dc67384d329736…

MALICIOUS

PDF

79.0 KB
MD5: ffb74cbe028ce4576f856d7b1b66c83c SHA-1: 97c21236bddb3b2c13d60f41d17b30165a0be380 SHA-256: 69dc67384d329736ef52423c7e0da5aa091ab72ff88cc4c2a905cf0e900c59f9
116 Risk Score

Malware Insights

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

This PDF file is flagged as malicious by an ML classifier and contains evidence of the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms. The exploit likely facilitates the execution of a secondary payload, although the specific nature of that payload could not be determined from the provided evidence. The embedded file and XFA structure are consistent with exploit delivery mechanisms.

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
540a7838c94c805713e841f3baf4715059ba395bb7bf0a9fb59b774f5872176c		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80116 bytes

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