Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ff2c6f08c588a49…

MALICIOUS

PDF

93.2 KB
MD5: dd395a22167a7dee0edb07daa76a738b SHA-1: 03191b273182f1f82739588a34626642ca2f8772 SHA-256: 7ff2c6f08c588a49eb43d8de7e083edbf70d839c58a6cdc022bb4c93bdd90856
178 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of malicious activity, including the presence of an XFA form and an embedded script payload. ML classifiers and ClamAV detections strongly indicate this is a malicious PDF, likely exploiting vulnerabilities within XFA forms. The embedded artifact, identified by ClamAV as Pdf.Exploit.Agent-6136306-0 and its extracted component as Pdf.Exploit.Agent-36769, suggests a known exploit or dropper.

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.
  • 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
77243bf20491460f46d6ef8fbcd660974394f2ae4909be31ee2b997706fe5ac0		 pdf-embedded-script PDF raw stream script payload at offset 0x246 94714 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely

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