Malicious PDF — malware analysis report

Static analysis result for SHA-256 88bba369800e80d0…

MALICIOUS

PDF

79.1 KB
MD5: ef83bc872657b92c53ff0636fe1b2e82 SHA-1: 4997d3cb97325e52864732f1574b66581c9bd714 SHA-256: 88bba369800e80d04558ed364cb9bf83216fce070e83dd9434da1015d5667ec1
178 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution

The file is identified as malicious by ClamAV and an ML classifier, with critical detections for PDF exploits and embedded script payloads. The presence of XFA form elements further indicates a potential attack vector. While specific script content is not detailed, the embedded script payload and XFA structure strongly suggest the PDF is designed to exploit vulnerabilities or trick the user into executing a malicious payload.

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_0000023e.bin
54806c3a4ef3e33cb77af5cd8a86e279cc8af8ac88fee7f2b7eb7fd42d5881c0		 pdf-embedded-script PDF raw stream script payload at offset 0x23E 80301 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely

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