Pdf.Exploit.Agent-6136306-0 — PDF malware analysis

Static analysis result for SHA-256 261c31b6682454fe…

MALICIOUS

PDF

44.8 KB
MD5: 92ace6d5da8725a8f48fe4950182cf1c SHA-1: ec88bd336696ed08f85174eb706ac3aacb69b5e2 SHA-256: 261c31b6682454fedfbdc2c3837d6393bc06700d28606b5f1ad1906f20eaaa53
148 Risk Score

Malware Insights

Pdf.Exploit.Agent-6136306-0 · confidence 95%

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1566.002 Phishing: Spearphishing Attachment

The PDF file utilizes XFA (XML Forms Architecture) which is a known vector for exploits. A critical heuristic identified it as Pdf.Exploit.Agent-6136306-0, indicating a known malicious PDF exploit. An embedded script payload was also detected, likely responsible for executing the exploit. The embedded URLs, while not directly malicious in reputation, are part of the PDF's 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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_0000023e.bin
c43803ec429fa0900977bc26f8936f06596d306e393a83dc050f6f101b9be690
pdf-embedded-script PDF decompressed stream script payload at offset 0x23E 45852 bytes
Detection
ClamAV: Pdf.Exploit.Agent-6136306-0
Obfuscation or payload: unlikely