Malicious PDF — malware analysis report

Static analysis result for SHA-256 109afc7628b56c23…

MALICIOUS

PDF

99.9 KB
MD5: edfedd3f40246052e4dfa85efd992ef7 SHA-1: d750bb839fb4bca10f8125324795add5109a77fc SHA-256: 109afc7628b56c2343a5e70e9b16d6507702c43a02eea7b3f396012f0ea62109
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. The exploit is embedded within the XFA form structure and is designed to execute arbitrary code. While no specific malicious URLs or scripts were directly extracted, the nature of the exploit suggests it is intended to download and execute a secondary payload, characteristic of a dropper or initial access exploit.

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
4c3ca892495864be38b7e9bd3c0b94ef2d3138df2c39eb7264e751e159a2a0a5		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101541 bytes

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