Malicious PDF — malware analysis report

Static analysis result for SHA-256 05ba14e2b6a7d89a…

MALICIOUS

PDF

11.6 KB
MD5: 934ae451f36ad15b305b01860b872f96 SHA-1: c08f546a20e13b4b2379d47bad445c0afa0dc8ae SHA-256: 05ba14e2b6a7d89a186f7ff608b6ee689ffa981d6e29fd6435da994c364759e8
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating it contains an exploit. The presence of an embedded script and an embedded file suggests the document is designed to download and execute a secondary payload. The script itself is heavily obfuscated, preventing a detailed analysis of its specific actions.

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 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 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_file_obj0008.bin
33d65b715888ebf9990f41acf02239022cabde0aaa25b23f1cebf0a8dafd9ef1		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11155 bytes

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