Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fa3e456cfd066ba…

MALICIOUS

PDF

42.8 KB
MD5: cf691df5ea2c89649500b471f0737ec7 SHA-1: f2939c1f70386bfd4972c1835370ba2073df3a1a SHA-256: 2fa3e456cfd066ba111b636ba730a4be2963acd4b878202ccc25853ab9d94b7a
186 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ML classification and ClamAV detection, as malicious. The presence of an embedded script payload and an embedded file further indicates a malicious intent, likely to download and execute a secondary payload. The ML classifier output of 0.999995 strongly supports this assessment.

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
40f92fae7a917a6618bf10e29a168a7161e43eb65b2bbce36b3d6cbbf1df646e		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 43112 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.