Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ea9e5a7bb00f40b…

MALICIOUS

PDF

99.5 KB
MD5: 00c1e5d5c0ba8f69943072a7babc44c1 SHA-1: ff8a9dc4fa0dea6b6fe4a4972efa011ee72e169f SHA-256: 0ea9e5a7bb00f40b6a4c9a5379462e85463d896fb8fe04da26e7687815516e5f
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader's LibTIFF component, to achieve code execution. The ML classifier strongly indicates maliciousness. While no specific malware family is identified, the exploit suggests an attempt to deliver a secondary payload, likely via spearphishing.

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
17116d12e163c3f651dace126b43919641edbe7c548aa63a80cd5a5c8e4849e7
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101148 bytes