Malicious PDF — malware analysis report

Static analysis result for SHA-256 16ca28c1f97d3c25…

MALICIOUS

PDF

99.8 KB
MD5: 4bb293251977a988f626d88c83d1b6bc SHA-1: 5892554787a25746a034462b52926ad5140951e9 SHA-256: 16ca28c1f97d3c25d12e2449c813639f4c878b02d9c34a3e110c609b3180d3e9
116 Risk Score

Malware Insights

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

The PDF sample contains an embedded XFA form and triggers the CVE-2010-0188 exploit, which targets a vulnerability in Adobe Reader's LibTIFF component. This exploit is designed to execute arbitrary code, indicating the file's primary purpose is to compromise the user's system. No specific malware family was identified, but the exploit suggests a downloader or dropper functionality.

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
7403522fd402a9aaaf80b8fc74d7c7b2a64f92bb257cd2b284d0459f10cd7431		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101438 bytes

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