Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d6a6fe558e7c126…

MALICIOUS

PDF

99.6 KB
MD5: 5effdc67faa83ae17101f148b0dd5131 SHA-1: ce551d1310c2b027240330af9dfb7140a7b897b8 SHA-256: 5d6a6fe558e7c1267f8a60f7efbc6a423d4b016b79ade98d23ea304e9c314829
116 Risk Score

Malware Insights

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

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's XFA form processing. The embedded script payload and ML classifier strongly indicate malicious intent. The exploit likely leads to the execution of arbitrary code, potentially for further 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
4fe5500901b06f9ebd312c5c3a079d3faf1708665498e8f90eace26423b044ea
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101227 bytes