Malicious PDF — malware analysis report

Static analysis result for SHA-256 8258299a71f57b4b…

MALICIOUS

PDF

99.8 KB
MD5: 7cef6d1a922f90715d699582ac622801 SHA-1: deb575df8c6d1c456f8d3c37b65cabc572530a14 SHA-256: 8258299a71f57b4b9c07662f41c0320854eca2ec7416ae0066b32f06c555da7f
116 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. This exploit allows for the execution of arbitrary code, likely to download and run a second-stage payload. The presence of XFA and embedded script markers indicates a malicious intent to compromise the user's system through this exploit.

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
fe1fdbf1daf880c9a00e1b3c2e9d19f75484c3d3099bae9e0da9c8e7947f0b3b
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101430 bytes