Agent — PDF malware analysis

Static analysis result for SHA-256 6ba8eb684bc52f62…

MALICIOUS

PDF

10.7 KB
MD5: a9306879d8c03d915e511f67212777af SHA-1: 64df8ccedf73aaef0be5aaa4b6dadb4e66dbbeba SHA-256: 6ba8eb684bc52f62af5b2486451c1eff9e58df3d624da127c024f18081264985
110 Risk Score

Malware Insights

Agent · confidence 95%

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and a machine learning classifier, indicating it is likely a dropper. The presence of XFA forms and an embedded file suggests it's designed to exploit PDF vulnerabilities to execute a secondary payload. The embedded file, named 'embedded_file_obj0001.bin', is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Dropper.Agent-7269843-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7269843-0
  • 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
  • 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/2.4/
    • http://www.xfa.org/schema/xfa-data/1.0/
    • http://ns.adobe.com/xtd/
    • http://www.xfa.org/schema/xfa-form/2.8/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0001.bin
2b5241921e1de0d8f5e023ea5a5acd5b4c8ed1a3cdc785f92e5d2b19acf592c5		 pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x80 13408 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).

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