Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b74edbff1d29286…

MALICIOUS

PDF

99.5 KB
MD5: f86cb1b0ef2fa25127d55a0ae550fb5d SHA-1: f48ca4113a32ba3f0fe07f6defe62c18d53c9b69 SHA-256: 6b74edbff1d29286904d7a8b8edb247e38495828b9310310d78a3979f85a40dd
116 Risk Score

Malware Insights

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

The PDF sample contains an embedded script payload and triggers a critical heuristic for CVE-2010-0188, an Adobe Reader exploit. This indicates the file is designed to exploit a known vulnerability for client-side execution. The embedded script likely facilitates the download of additional malicious content, though its exact function is obscured.

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
51561fb6e03607c18dfa8bf6e30fbea08cc1e41ea6626b51c77b05c30854d560
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101178 bytes