Malicious PDF — malware analysis report

Static analysis result for SHA-256 e22ec61f892f16aa…

MALICIOUS

PDF

11.8 KB
MD5: f6c835815b8168d66413e8b61d3b9286 SHA-1: 975e65afd5f051e67ac6279176b49b34d3e6f41f SHA-256: e22ec61f892f16aaac6741a73e83439085697a59f2566e4e775a5d96e079bdac
126 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including ML classification and ClamAV detection as 'Pdf.Exploit.Dropped-78'. The presence of an embedded script payload and an embedded file indicates the document is likely a dropper or exploit document. The ML classifier output of 0.999995 strongly supports its malicious nature.

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
137bb8bfca1d37d35ce7e89dd9b5e661a521743be750ab0ef0e486f4ca4ca437
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 11297 bytes