Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e971517ee27320a…

MALICIOUS

PDF

41.9 KB
MD5: dbf420ae0362ed54c75a95f2a919562e SHA-1: 58127c4fea48bad23c41cb15fe5ba4ad876078d4 SHA-256: 9e971517ee27320aa70b483eb4c1e2f86da9e39d973dc24da2732b2517d369ff
186 Risk Score

Malware Insights

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

The PDF file was flagged by multiple high-severity heuristics, including ML classification and ClamAV detection, indicating it contains a malicious exploit. An embedded file artifact was also extracted, suggesting it's a dropper for a secondary payload. The ML classifier output of 0.999995 strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • ClamAV: Pdf.Exploit.Agent-36830 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36830
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • 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
ec2adea0de9a7ae74cc5ce09d1f9840d7edb6c34274b79e7f83ee41036b0ee89		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 42178 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.