Malicious PDF — malware analysis report

Static analysis result for SHA-256 02c96364f3a96291…

MALICIOUS

PDF

99.5 KB
MD5: 6d62468e33224b8deadf1c658f9fd1b7 SHA-1: 594783d84a4d8adf9dd50f14f9c9ad1697eeeb6a SHA-256: 02c96364f3a962911c50699d15dc8ca688ad1297c0ae34635212be780c3df84d
116 Risk Score

Malware Insights

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

The sample is a PDF file that exploits CVE-2010-0188, a known vulnerability in Adobe Reader's XFA form processing. This exploit is designed to execute arbitrary code, and the presence of an embedded script payload suggests it is used to download and run a secondary malicious component. The ML classifier strongly indicates maliciousness.

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
6d2fdbc03e4dc5d01d87cd1e19820dc0e4502cc7af0f3b3d6c5652fba8992373
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101189 bytes