Malicious PDF — malware analysis report

Static analysis result for SHA-256 acea770accd376b7…

MALICIOUS

PDF

42.3 KB
MD5: efbe5997015364e9714b6476a7eee96c SHA-1: 29bc88e0a8eb58425b3216956ec9b7deb6341a37 SHA-256: acea770accd376b7722084311256406e165ce1bc83c1fed426e3683eae997be7
186 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File

The PDF was flagged by multiple heuristics, including ML classification and ClamAV detection (Pdf.Exploit.Agent-36830), indicating it contains an exploit. The presence of an embedded script payload and an embedded file further supports this. The embedded URLs are likely part of the exploit chain or lure.

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
3b927baa48b310099a602785410d17ce28af6f0bc44244966ecc8b4befa336f1		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 42609 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.