Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e7d0bb48716b96b…

MALICIOUS

PDF

42.3 KB
MD5: 898d1f5458ff9471024cd6534ffb9fc1 SHA-1: 948fc71d545fec42b6d7f7e59da5c17217b1d35c SHA-256: 9e7d0bb48716b96bfc3cc1dd85cc13c083e0a470059929a6bcd672e1bc153cf1
156 Risk Score

Malware Insights

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

The critical ClamAV detection 'Pdf.Exploit.Agent-36830' indicates this PDF is malicious and likely exploits a known vulnerability. The presence of an embedded script payload and an embedded file further supports this. The document body content appears to be obfuscated or malformed, preventing a clear understanding of the lure, but the overall pattern points to a malicious PDF designed to execute an embedded exploit.

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
15e49594a765b35c3f3d446fa8004e8dde85598fceccdacdd4a4a88a7091bf40		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 42566 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely

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