Malicious PDF — malware analysis report

Static analysis result for SHA-256 67710ee089d17115…

MALICIOUS

PDF

99.7 KB
MD5: 44387c486018c447b2a53c8d3dc52071 SHA-1: 4623aacb637c723cc6ae11d2252c4c9cd964fd15 SHA-256: 67710ee089d17115183cc1af3cca21404bc97a608ab33520813916819c87942d
116 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by a machine learning classifier. It contains an exploit for CVE-2010-0188, targeting Adobe Reader's handling of XFA forms and embedded TIFF images. This exploit likely facilitates the execution of a secondary payload, potentially downloaded from an external source, although no specific download URLs were extracted. The presence of XFA and embedded scripts points towards JavaScript execution for payload delivery.

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
60458a5e2f2df29426113e32a5472d59a9b164f346c3a2e6fe08eb64d23ee8c7		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101312 bytes

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