Malicious PDF — malware analysis report

Static analysis result for SHA-256 cabe916a488e4de6…

MALICIOUS

PDF

11.8 KB
MD5: 8ca871a67e1799b0ec2fc47fcc71e704 SHA-1: aec86a50fa4a5b6db8d1b69663af81c0e7f79b94 SHA-256: cabe916a488e4de6450e68cf291f6010cf917ef34e79a5a368943ad56ece2190
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains embedded script content, as indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. ClamAV detection as 'Pdf.Exploit.Dropped-78' strongly suggests it's a malicious PDF designed to exploit vulnerabilities or deliver further malware. The embedded file artifact further supports the payload delivery mechanism. The embedded URLs are benign and do not contribute to the maliciousness.

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
f3d31c4185471867bc50be06f8b6494c264b714cfce3a689af1ba78d54b3f247
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11300 bytes