Analysis

  • user interaction
    yes
  • max time kernel
    148s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 04:48

General

  • Target
    malware.ps1
  • Size 38KB
  • Sample261102-fffbdaez4y
  • SHA256 56cd2667640d9293d092917af43bc815789ede4000b6d3dcb434a84e734098c9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Modifies file permissions 1 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\malware.ps1
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:6056
    • C:\Windows\system32\icacls.exe
      "C:\Windows\system32\icacls.exe" C:\Users\Admin\AppData\Roaming\.jesterlocker\jesterlocker.key /inheritance:r /grant:r Admin:(R,W)
      2⤵
      • Modifies file permissions
      PID:716

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        jesterlocker.key

        • Path C:\Users\Admin\AppData\Roaming\.jesterlocker\jesterlocker.key
        • Size 103B
        • SHA256 4a5ad584ebaecefcce9f222a07804c86db8bff705b0a1314d013d67219500555
        • MD5 SHA1 SHA512 TLSH

        jesterlocker.log

        • Path C:\Users\Admin\AppData\Roaming\.jesterlocker\jesterlocker.log
        • Size 5KB
        • SHA256 cca801eaca7f4b6d05ebcb279e143ac3991ed4040f78c3f47161ef3626f23259
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/6056-15-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-17-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-6-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-7-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-8-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-9-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-10-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-13-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-0-0x00007FFEDFBFF000-0x00007FFEDFC00000-memory.dmp

        memory/6056-5-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-21-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-24-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-4-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-22-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-3-0x0000019A34650000-0x0000019A34672000-memory.dmp

        memory/6056-94-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-95-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-96-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp

        memory/6056-98-0x00007FFEDFA70000-0x00007FFEE0414000-memory.dmp