Analysis

  • user interaction
    yes
  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    13/07/2026, 01:18

General

  • Target
    JesterProcess.exe
  • Size 269KB
  • Sample260713-bpap2acy5x
  • SHA256 db5e92e0c9f871aea0fdfe446a618b9025aa4813f6644c6f96c23587d5921c9b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 4 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JesterProcess.exe
    "C:\Users\Admin\AppData\Local\Temp\JesterProcess.exe"
    1⤵
    • Adds Run key to start application
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    PID:3160
  • C:\Users\Admin\AppData\Local\Temp\JesterProcess.exe
    C:\Users\Admin\AppData\Local\Temp\JesterProcess.exe
    1⤵
      PID:2884

    Network

          MITRE ATT&CK Enterprise v16

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          Downloads