Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea56a752877e50bb…

MALICIOUS

PDF

79.4 KB
MD5: 658aaf7a1fc1e88b288d08c39ec92367 SHA-1: d0cc4ddec577dd0b0df50ff63f79d3f651454618 SHA-256: ea56a752877e50bbb8f4b36377e445807b3e79d3000bbf1b042cf9f34a1369e4
148 Risk Score

Malware Insights

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

The PDF file contains an XFA form and an embedded script payload, which is a common technique for exploiting PDF vulnerabilities. ClamAV detections indicate this is a known exploit targeting PDF viewers. The embedded artifact is identified as a JavaScript exploit, suggesting the PDF is designed to download and execute a second-stage payload. The confidence is high due to multiple critical heuristic firings and specific ClamAV detections.

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_0000023c.bin
46810f105573e0a683ef966acad2a4e41c4c7acfa211d656b2c07672bfbf9ad1		 pdf-embedded-script PDF raw stream script payload at offset 0x23C 80633 bytes
Detection
ClamAV: Js.Exploit.HTML-29
Obfuscation or payload: unlikely

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