PDF static analysis report

Static analysis result for SHA-256 7619be759915da83…

SUSPICIOUS

PDF

7.7 KB Created: 2012-06-29 13:21:27
MD5: e5a9559de8a142ea028563c046876949 SHA-1: 706ed6a2f307c70fb5e5b6332b0e3ef6f93773fa SHA-256: 7619be759915da8350c5a2dd4f2b193c64890e6829348e05bfe45a581546270f
58 Risk Score

Malware Insights

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

The PDF file contains embedded script content and an embedded file, strongly indicating it's designed to exploit vulnerabilities and download a secondary payload. The ML classifier's high confidence score further supports this assessment. While specific URLs were benign, the presence of an embedded file object is a critical indicator of malicious intent.

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
c1365389095ebcbb3c768aded3380030c1391baa67077fcb08d534978d68b4d0		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC5D 7037 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 4 long base64-like blob(s).

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