PDF static analysis report

Static analysis result for SHA-256 729a9fa3231b4959…

SUSPICIOUS

PDF

10.8 KB Authoring application: Ckukishverd Rleugczbbngmojdi
MD5: a54bf1b04a75e24a54d2d377d1c3730a SHA-1: 0e7538e1705430d2f13d2cf936f8d9add81dfc3f SHA-256: 729a9fa3231b4959c5ae24df5334d820f3a3bc08331a8cc24c7aa1d9ca445f5b
58 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF file contains an embedded script payload and is flagged by a machine learning classifier as malicious. The presence of XFA forms and embedded files suggests an attempt to deliver a secondary payload. While the specific script content is obfuscated, the overall structure and heuristic firings indicate a high likelihood of malicious intent, likely through spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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/xci/1.0/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://ns.adobe.com/xtd/
    • http://www.xfa.org/schema/xfa-data/1.0/
    • http://ns.adobe.com/xfdf/
    • http://www.xfa.org/schema/xfa-form/2.8/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
b19af1c02ac67f8a915f4c57b57af3c1d9e56714f9a65842ac8c94052b8c2935		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0x294 9926 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.