Malicious PDF — malware analysis report

Static analysis result for SHA-256 abc79c20f848877e…

MALICIOUS

PDF

99.6 KB
MD5: fe41a63338d83c63290fd4b55f7bf9f0 SHA-1: 4bfdace2ff04aea33f2325f0540ee59eb6ad313d SHA-256: abc79c20f848877ee7d7a0d8f187ccc6a80c597da2f1916204be1290f5c153c4
96 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA forms. This exploit allows for the execution of arbitrary code. The PDF contains embedded XFA form data and an embedded script payload, indicating a multi-stage attack. The embedded URLs are related to XFA schemas but do not appear to be malicious themselves.

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
e2966704f4491e3192987d9c96c76f268342b470713b4f35cf47f208473f317e		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101233 bytes

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