Malicious PDF — malware analysis report

Static analysis result for SHA-256 38f738eb5b992abf…

MALICIOUS

PDF

11.8 KB
MD5: 7da9b715b3f568b11d14871d053c4c21 SHA-1: 462dda93ff77589c0aed8ec3450faad9aafd03fa SHA-256: 38f738eb5b992abfb8c73f448ca77057017618a22839a19224a0bb3f92319dd7
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.007 JavaScript

The PDF file contains embedded script content, as indicated by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic. ClamAV detection 'Pdf.Exploit.Dropped-78' strongly suggests this script is malicious and intended to exploit vulnerabilities within the PDF reader or deliver a secondary payload. The embedded file artifact further supports the delivery of malicious content. The document body is not human-readable and appears to be obfuscated script or metadata.

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
3172ee8f11c27f1dbb89bca95f002c9fdc47661118b372c4aa77471a4cf8dbc0
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 11342 bytes