Malicious PDF — malware analysis report

Static analysis result for SHA-256 06033e2e25e305ce…

MALICIOUS

PDF

19.1 KB
MD5: 3d46a3322d1100a84886da91b49a2cb5 SHA-1: 73d31467eca08851846621beb8fb9fa3077c57ae SHA-256: 06033e2e25e305cecaeb85c682cb7a1c8f9e2860926d6bb47c4f386e432d013b
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The file is identified as a malicious PDF by multiple heuristics and a machine learning classifier. It contains an embedded script payload and is flagged by ClamAV as Pdf.Exploit.Dropped-78, indicating it's designed to exploit vulnerabilities and drop further malicious content. The presence of an embedded file further supports its role as a dropper.

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
ebeb7f5151fde1e0630c9da9c90558a3e197d8566f2d18317970d740fe386dc2
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 18750 bytes