Malicious PDF — malware analysis report

Static analysis result for SHA-256 a69a8b410e0bba5e…

MALICIOUS

PDF

100.5 KB
MD5: 1b787a266f7ce4d31478faa99933446c SHA-1: 82c7300787f84a4e866a7c71b85452187fcca2c1 SHA-256: a69a8b410e0bba5e0cbb74e67eb136388e78ef565e59ba4aafa08fbfd7f7e962
178 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The file is identified as a malicious PDF by multiple high-confidence heuristics, including ML classification and ClamAV detection. The presence of an XFA form and an embedded script payload indicates an attempt to execute malicious code upon opening. The embedded script is likely responsible for downloading and executing a second-stage payload, as suggested by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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.
  • 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_pdf_script_00000246.bin
b567030e100ef431c3d0ea430e623bad40e4144558856506f84ab568e1d31f2a		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102156 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely

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