Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ab2883c87e369b0…

MALICIOUS

PDF

93.5 KB
MD5: cede277132cc8546c223a22c0ec3a07c SHA-1: b746a28b454c33cabe93aace0f151dcf9090d01c SHA-256: 0ab2883c87e369b09ba91ad140e426a653d8dd88964cdb1a9d9e761e65f8f8f3
168 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The sample is identified as malicious by multiple heuristics, including a critical ClamAV detection (Pdf.Exploit.Agent-6136306-0) and an ML classifier. It contains an embedded PDF script that appears to be JavaScript, which is likely responsible for executing the exploit. The script's obfuscated nature and truncated content prevent a full analysis of its specific actions, but its presence strongly suggests it's designed to download and execute a secondary 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.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low 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.
  • 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
814d22b6aeda413ff3387cb1aeaca671291f9eb83c7de03085a5d6d27cb6153d		 pdf-embedded-script PDF raw stream script payload at offset 0x246 95028 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely

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