Malicious PDF — malware analysis report

Static analysis result for SHA-256 00fce5955ce3cbec…

MALICIOUS

PDF

12.0 KB
MD5: 61413037abb841db4f487e81e8d75b7a SHA-1: 891d26a39b8e22db1a3ff412afe9f91f0ddfd8dd SHA-256: 00fce5955ce3cbecf325e3f7facf6e3c0b9990b03a5c9798449edf2b6105c4f7
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File

The PDF file was flagged as malicious by multiple engines, including a critical ClamAV detection for 'Pdf.Exploit.Dropped-78'. Heuristics indicate the presence of an embedded script payload and an embedded file, suggesting the PDF is designed to drop or execute additional malicious content. The ML classifier also strongly indicated maliciousness.

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
e87b2afc9cd6a0ce305a7d92cdcd07a925ad3a5f6c2cc1ed872bb25695cf2df6
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 11568 bytes