Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d8a9a7add4a90d0…

MALICIOUS

PDF

93.6 KB
MD5: cc79e714184f57c127c48d76b2e79c18 SHA-1: 13316d46efe19c09ecb8eaf3a26b3e8c8f32ed7b SHA-256: 1d8a9a7add4a90d0c8359dedf36d829347c1b1a15dd871c17109a82f06504850
178 Risk Score

Malware Insights

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

The PDF was flagged by multiple high-severity heuristics, including ML classification and ClamAV detection, indicating it is a malicious PDF. The presence of an XFA form and an embedded script payload suggests an exploit is being leveraged. The embedded artifact, 'embedded_pdf_script_00000246.bin', likely contains the malicious code. The ClamAV detections provide specific identifiers for the threat.

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
2c60b383e1e99c2bbdcb2f856ce8d22006dec6d67e0032a84e8ac521762a23fd		 pdf-embedded-script PDF raw stream script payload at offset 0x246 95096 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.