Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e64a8d99a2d097d…

MALICIOUS

PDF

93.4 KB
MD5: 5d0e53411e91cfe010acb90cb69ec473 SHA-1: 5d7e8f883b2b36f88fc0de5d91449044aeace491 SHA-256: 1e64a8d99a2d097dc0180f4c564904d3f84e09ff25b1740f505d7be6c2d76a5f
148 Risk Score

Malware Insights

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

The PDF file utilizes XFA forms, a known vector for exploitation. ClamAV detections indicate it's a malicious exploit targeting PDF vulnerabilities. An embedded script payload was also identified, likely responsible for delivering the secondary stage of the attack. The exact nature of the script's execution is unclear due to obfuscation, but it is strongly suspected to be the mechanism for payload delivery.

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
3994c8df75dad9c9a06458b4b49fc218c84cd4996aeef1fe73ad716111248877		 pdf-embedded-script PDF raw stream script payload at offset 0x246 94922 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.