Malicious PDF — malware analysis report

Static analysis result for SHA-256 082b9ef4f1bd9177…

MALICIOUS

PDF

79.4 KB
MD5: 950ba878e0e65918544e09c82ce9ad55 SHA-1: 600bccaf13e170bbdf27c09086a28b1599ea880f SHA-256: 082b9ef4f1bd91770eaedf54b03d1a9245cb0d882956a5b64755e1c99a744bad
168 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains an XFA form and an embedded JavaScript payload, flagged by multiple heuristics and ClamAV as malicious. The embedded script, although truncated, appears to be designed to execute code, likely for downloading and running a secondary malicious component. The benign URLs present are likely decoys or standard XFA references.

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_0000023c.bin
cab9788ee0acfd02b2f79148980bbdbe4f9df4539156b7691356f3cc0f0f7487		 pdf-embedded-script PDF raw stream script payload at offset 0x23C 80545 bytes
Detection
ClamAV: Js.Exploit.HTML-29
Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.