Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c06ad0c8c60a37e…

MALICIOUS

PDF

100.5 KB
MD5: 3df3060d2ba7d97cafb11c0353a41aaa SHA-1: dd7f2dc36b5421a74bfb7afeb6ff48bccd9a4bf1 SHA-256: 3c06ad0c8c60a37e498e7e4fbc55421cb5cffc2334c8dc6b49012421b140e718
148 Risk Score

Malware Insights

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

The PDF file utilizes XFA forms, a known vector for exploitation. ClamAV detections indicate the presence of an embedded script payload, likely responsible for delivering a secondary malicious artifact. The embedded script is the primary mechanism for the attack, and its exact function is obscured by the PDF structure.

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
c967df41f89293f6f92a6badb5e7804db0da55de1f844aa85ea64b0519f2467c		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102154 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely

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