Malicious PDF — malware analysis report

Static analysis result for SHA-256 bee5b6aedd94f448…

MALICIOUS

PDF

11.8 KB
MD5: c29e196fe3f66d5f2bf75264a82a2c0d SHA-1: 8bcc12c6f9b58639ee2bbe902df98b2151eaafbb SHA-256: bee5b6aedd94f4485adff2930cf7eb84b345a284ba4a39ba514cfac908cdd519
126 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment

The critical ClamAV detection and high ML classifier score indicate a malicious PDF. The PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic suggests the presence of an embedded script, likely responsible for delivering a secondary payload. The embedded file artifact further supports this, indicating the PDF is a dropper. The document body content is obfuscated and does not provide clear user-facing lures.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • 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_file_obj0008.bin
af0178a35998b72ed2705655ec01f2990c5ad2a5b4c9bbc5782df12c6ff1ef65		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11360 bytes

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