Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c96fa8da98e1372…

MALICIOUS

PDF

100.4 KB
MD5: 370510c7746b70ab35f8d620d754f73c SHA-1: 7ac215b8309e1be64846860219878d53d9250ae0 SHA-256: 2c96fa8da98e13720ae36e9dcddf9c0c4ae4e2fc8937a696ebed223f59ad655f
178 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains an embedded script payload and triggers a critical ClamAV detection (Pdf.Exploit.Agent-6136306-0), indicating it is designed to exploit vulnerabilities. The presence of XFA form elements further supports this. The embedded script is likely responsible for downloading and executing a second-stage payload, a common technique for delivering malware.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Embedded script payload in PDF stream medium 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.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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_pdf_script_00000246.bin
717dc66c5fff2d23ed4606667d4bb2105ab9cce72995550c47f9717acb266f95
pdf-embedded-script PDF raw stream script payload at offset 0x246 102042 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely