Malicious PDF — malware analysis report

Static analysis result for SHA-256 85d8947b7decf17d…

MALICIOUS

PDF

79.3 KB
MD5: eee916d3ff2081f1e9ccb660a8ae6ee2 SHA-1: c1b49287fdf5041e029e7c814ada80ec94fc5efe SHA-256: 85d8947b7decf17d9bb22a49f3065b64322e4deb075492c6e0267490498a0a1d
116 Risk Score

Malware Insights

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

This PDF file is identified as malicious due to the presence of the CVE-2010-0188 exploit targeting Adobe Reader's LibTIFF component. The XFA form structure and embedded script payload indicate an attempt to execute code. The exploit likely serves to download and execute a secondary payload, though the specific nature of that payload cannot be determined from the provided evidence.

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
d498486dc8862ea0cfeb3afe2c3ca8d6365a43a4bcd62f44d5217468a33b097c		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80411 bytes

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