Malicious PDF — malware analysis report

Static analysis result for SHA-256 136cf74e05bc3ce3…

MALICIOUS

PDF

99.7 KB
MD5: 89a1be003aa0147205273e46792d4281 SHA-1: 2e47e798c3725d8f7c5279f7ff193bca2ee87ea0 SHA-256: 136cf74e05bc3ce3561acdf5cac9380b0b81af728cb50e3edd3a002189f16f22
116 Risk Score

Malware Insights

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

This PDF file is malicious, flagged by an ML classifier with high confidence. It exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. The exploit likely decodes and executes a payload from an embedded stream, which is characteristic of a client-side exploit designed to download and run further malicious content.

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
95bd5f7408d814c3cce14c3b15ab14b5dc55bc4366e977ee5f6116f33a873a08
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101333 bytes