Resubmissions

24/10/2026, 23:32

261024-3jpqjssx5k8

24/10/2026, 23:01

261024-2zls6afh858

Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260911-en
  • resource tags

    arch:x64arch:x86image:win11-20260911-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    24/10/2026, 23:01

General

  • Target
    LunarLoader/Checker/CarbonChecker.exe
  • Size 1.7MB
  • Sample261024-2zls6afh85
  • SHA256 769f6f0d241428069a1f6fc289a7ed1ebdde6e908bc580d5f6c6f235b6d6389e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to get system information as a root user.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LunarLoader\Checker\CarbonChecker.exe
    "C:\Users\Admin\AppData\Local\Temp\LunarLoader\Checker\CarbonChecker.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Reads the TCP/IP host and domain name from the registry
    • Checks processor information in registry
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:540
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -ExecutionPolicy Bypass -Command "Get-CimInstance -Namespace root/wmi -ClassName WmiMonitorID | ForEach-Object { $name = [System.Text.Encoding]::ASCII.GetString($_.UserFriendlyName).Trim([char]0); $pc = [System.Text.Encoding]::ASCII.GetString($_.ProductCodeID).Trim([char]0); $sn = [System.Text.Encoding]::ASCII.GetString($_.SerialNumberID).Trim([char]0); '{0}|{1}|{2}' -f $name, $pc, $sn }"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5772
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -ExecutionPolicy Bypass -Command "Get-CimInstance -Namespace root/StandardCimv2 -ClassName MSFT_NetAdapter -Filter 'HardwareInterface=TRUE' | ForEach-Object { $mac = if ($_.MacAddress) { $_.MacAddress } else { $_.PermanentAddress }; '{0}|{1}' -f $_.Name, $mac }"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5336

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
        • Size 3KB
        • SHA256 7f8f97ee615f534fb3a3d4ab1d554cd33b788f10c559754714d1e7ce0726b362
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 3aefde46e083e91df5137feac534ebaa7d1d9cf6aaf96e151f6afd402c0c565e
        • MD5 SHA1 SHA512 TLSH

        __PSScriptPolicyTest_op0tzdsi.4sb.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_op0tzdsi.4sb.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        memory/5336-53-0x0000021C4C880000-0x0000021C4C933000-memory.dmp

        memory/5772-27-0x00000293F1240000-0x00000293F126A000-memory.dmp

        memory/5772-30-0x00000293F0EC0000-0x00000293F0ED0000-memory.dmp

        memory/5772-25-0x00000293F1290000-0x00000293F1343000-memory.dmp

        memory/5772-26-0x00000293F11E0000-0x00000293F11EA000-memory.dmp

        memory/5772-8-0x00000293F0EC0000-0x00000293F0ED0000-memory.dmp

        memory/5772-28-0x00000293F1240000-0x00000293F1264000-memory.dmp

        memory/5772-29-0x00000293F0EC0000-0x00000293F0ED0000-memory.dmp

        memory/5772-24-0x00000293F11F0000-0x00000293F120C000-memory.dmp

        memory/5772-31-0x00000293F0EC0000-0x00000293F0ED0000-memory.dmp

        memory/5772-32-0x00007FF48C270000-0x00007FF48C280000-memory.dmp

        memory/5772-33-0x00000293F0EC0000-0x00000293F0ED0000-memory.dmp

        memory/5772-34-0x00000293F0EC0000-0x00000293F0ED0000-memory.dmp

        memory/5772-17-0x00007FF48C270000-0x00007FF48C280000-memory.dmp

        memory/5772-16-0x00000293F0EC0000-0x00000293F0ED0000-memory.dmp

        memory/5772-9-0x00000293F0D40000-0x00000293F0D62000-memory.dmp