Malicious PDF — malware analysis report

Static analysis result for SHA-256 00a7863fd6d4d7f5…

MALICIOUS

PDF

99.9 KB
MD5: 57051a9a77ef63d0ea23d2f52625b47c SHA-1: 513bfc622b4a08c0083297773aa60094e6a7d41c SHA-256: 00a7863fd6d4d7f551fd1ff80b5cd1cb2f835fc80206edf6c227280b5dee5ae5
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms and LibTIFF. This exploit likely leads to the execution of a malicious payload, as indicated by the critical heuristic firing and the ML classifier's high confidence. The embedded file further suggests the delivery of a secondary stage.

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 script payload in PDF stream medium 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 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 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
bc0dbf4b587c800b957565d5f4cda3c4d2dd1ec87fe61f6f4a7f4af1d67f450c		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101545 bytes

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