Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae04948701ba3ce0…

MALICIOUS

PDF

94.1 KB
MD5: d03ee24b53daabc5709483a8af1509c0 SHA-1: 8ad180ed1255ada2784fd4493c3a456e998555de SHA-256: ae04948701ba3ce0a3ada986da2f693aa68b475fbede9c870999dd1cc1290b14
178 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: Malicious PDF T1059 Command and Scripting Interpreter

The file is identified as a malicious PDF by multiple high-confidence heuristics, including ML classification and ClamAV detections. The presence of XFA forms and an embedded script payload indicates an attempt to exploit vulnerabilities or execute malicious code upon opening. The embedded script is likely responsible for delivering the secondary 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
4b64dbe8bfc75b3d78fc956363f2b96ea4d26fb35de4bccbb61e36b5d700d8a1
pdf-embedded-script PDF raw stream script payload at offset 0x246 95612 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely