Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8a09aca7aa9e85d…

MALICIOUS

PDF

100.5 KB
MD5: 45cfa0b26bd212bc507ce186e6c9e133 SHA-1: 53e52714c899a9f576a9685d3584cb5cb093fc11 SHA-256: e8a09aca7aa9e85d2f4e1490014bc36077d39f8036deac6828738260da5dc8e9
148 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and triggers XFA form heuristics, indicating it's designed to exploit PDF vulnerabilities. ClamAV detections confirm its malicious nature, identifying it as Pdf.Exploit.Agent-6136306-0 and Pdf.Exploit.Agent-36769 on an extracted artifact. The embedded script is the primary mechanism for exploitation, likely downloading and executing a second-stage payload.

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
232aa8f38a91978f501f537ebd7dd25be37ce56e314250f076f608d1b7809393		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102156 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely

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