Analysis

  • max time kernel
    150s
  • max time network
    114s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/09/2026, 22:36

General

  • Target
    Setup.exe
  • Size 9.6MB
  • Sample260920-2jjnvstyfv
  • SHA256 1ed96eaa40c0325cec3903cc8f8f50a12db5615f6bc5cbb21b4f61f9c4e21c8f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • stealerium

C2
  • https://discordapp.com/api/webhooks/1260240210554392698/6OTQbI2XfVEyUkQ3VwmQg2Rl76EMQY9zwhXAJ7uCLz5zYqMaTsKW19kSRwFhVD5eLQeP

Signatures

  • Family: Stealerium

    An open source info stealer written in C# first seen in May 2022.

  • Deletes Windows Defender Definitions 2 TTPs 1 IoCs

    Uses mpcmdrun utility to delete all AV definitions.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Disables one or more Microsoft Defender components 1 TTPs 1 IoCs

    Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 17 IoCs
  • Looks up external IP address via web service 1 TTPs 1 IoCs

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

  • Discovers running processes 1 TTPs 1 IoCs

    Running process information can be used to identify security tools or plan follow-on actions.

  • UPX packed file 49 IoCs

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

  • Costura .NET executable packer 1 IoCs

    Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Executes a command shell one-liner 1 TTPs 7 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4216
    • C:\Users\Admin\AppData\Local\Temp\Setup.exe
      "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:5956
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Setup.exe'"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:5060
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Setup.exe'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:5632
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "powershell Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2 & "%ProgramFiles%\Windows Defender\MpCmdRun.exe" -RemoveDefinitions -All"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:5248
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Disables one or more Microsoft Defender components
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2268
        • C:\Program Files\Windows Defender\MpCmdRun.exe
          "C:\Program Files\Windows Defender\MpCmdRun.exe" -RemoveDefinitions -All
          4⤵
          • Deletes Windows Defender Definitions
          PID:1772
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\bound.exe'"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:4912
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\bound.exe'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4816
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "start bound.exe"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:2960
        • C:\Users\Admin\AppData\Local\Temp\bound.exe
          bound.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:5416
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp552B.tmp.bat
            5⤵
            • Executes a command shell one-liner
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1724
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              6⤵
              • System Location Discovery: System Language Discovery
              PID:1208
            • C:\Windows\SysWOW64\taskkill.exe
              TaskKill /F /IM 5416
              6⤵
              • System Location Discovery: System Language Discovery
              • Kills process with taskkill
              PID:2508
            • C:\Windows\SysWOW64\timeout.exe
              Timeout /T 2 /Nobreak
              6⤵
              • System Location Discovery: System Language Discovery
              • Delays execution with timeout.exe
              PID:5836
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "tasklist /FO LIST"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:5584
        • C:\Windows\system32\tasklist.exe
          tasklist /FO LIST
          4⤵
          • Discovers running processes
          • Suspicious use of AdjustPrivilegeToken
          PID:2172
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "wmic csproduct get uuid"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:2348
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic csproduct get uuid
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2976

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 435471b87a1a97b0e29f7d5dd0878e63031511f063629d7e750852c068e7c4f5
        • MD5 SHA1 SHA512 TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 1599754af315bf45fc5c21a5d9d6289ee5d77b66ecc79c44b56e93a2e4a258b3
        • MD5 SHA1 SHA512 TLSH

        VCRUNTIME140.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\VCRUNTIME140.dll
        • Size 116KB
        • SHA256 4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _bz2.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\_bz2.pyd
        • Size 48KB
        • SHA256 88087fef2cff82a3d2d2d28a75663618271803017ea8a6fcb046a23e6cbb6ac8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _ctypes.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\_ctypes.pyd
        • Size 59KB
        • SHA256 d699e09727eefe5643e0fdf4be4600a1d021af25d8a02906ebf98c2104d3735d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _hashlib.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\_hashlib.pyd
        • Size 35KB
        • SHA256 09a0be93d58ce30fa7fb8503e9d0f83b10d985f821ce8a9659fd0bbc5156d81e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _lzma.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\_lzma.pyd
        • Size 86KB
        • SHA256 2fbc631716ffd1fd8fd3c951a1bd9ba00cc11834e856621e682799ba2ab430fd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _queue.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\_queue.pyd
        • Size 26KB
        • SHA256 d8b60222732bdcedddbf026f96bddda028c54f6ae6b71f169a4d0c35bc911846
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _socket.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\_socket.pyd
        • Size 44KB
        • SHA256 5427daade880df81169245ea2d2cc68355d34dbe907bc8c067975f805d062047
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _sqlite3.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\_sqlite3.pyd
        • Size 57KB
        • SHA256 79977cbda8d6b54868d9cfc50159a2970f9b3b0f8df0ada299c3c1ecfdc6deb0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _ssl.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\_ssl.pyd
        • Size 66KB
        • SHA256 66a0e06cce76b1e332278f84eda4c032b4befbd6710c7c7eb6f5e872a7b83f43
        • MD5 SHA1 SHA512 SSDEEP TLSH

        base_library.zip

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\base_library.zip
        • Size 1.3MB
        • SHA256 c611943f0aeb3292d049437cb03500cc2f8d12f23faf55e644bca82f43679bc0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        blank.aes

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\blank.aes
        • Size 116KB
        • SHA256 15bf02616951d67931673e852f82b7e3f7d588f032d47da674da64490a4f8a29
        • MD5 SHA1 SHA512 SSDEEP TLSH

        blank.aes

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\blank.aes
        • Size 116KB
        • SHA256 c1110ef59290cca9064289a82046b72027064d5bae42750fe49315ad17f0a206
        • MD5 SHA1 SHA512 SSDEEP TLSH

        bound.blank

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\bound.blank
        • Size 1.5MB
        • SHA256 b28069e11abe4fb4838ff634822051674257378a58f0439481275e560f806c85
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libcrypto-3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\libcrypto-3.dll
        • Size 1.6MB
        • SHA256 41201d2f29cf3bc16bf32c8cecf3b89e82fec3e5572eb38a578ae0fb0c5a2986
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libffi-8.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\libffi-8.dll
        • Size 29KB
        • SHA256 135c772b42ba6353757a4d076ce03dbf792456143b42d25a62066da46144fece
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libssl-3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\libssl-3.dll
        • Size 222KB
        • SHA256 358b59da9580e7102adfc1be9400acea18bc49474db26f2f8bacb4b8839ce49d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        python312.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\python312.dll
        • Size 1.7MB
        • SHA256 8e2c03e1ee5068c16e61d3037a10371f2e9613221a165150008bef04474a8af8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        select.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\select.pyd
        • Size 25KB
        • SHA256 b3ff47c71e1023368e94314b6d371e01328dae9f6405398c72639129b89a48d2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        sqlite3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\sqlite3.dll
        • Size 644KB
        • SHA256 ad9afd1225847ae694e091b833b35aa03445b637e35fb2873812db358d783f29
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ucrtbase.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\ucrtbase.dll
        • Size 992KB
        • SHA256 8a91052ef261b5fbf3223ae9ce789af73dfe1e9b0ba5bdbc4d564870a24f2bae
        • MD5 SHA1 SHA512 SSDEEP TLSH

        unicodedata.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI42162\unicodedata.pyd
        • Size 295KB
        • SHA256 7dc64867f466b666ff1a209b0ef92585ffb7b0cac3a87c27e6434a2d7b85594f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __PSScriptPolicyTest_t25agbiv.zce.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_t25agbiv.zce.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        bound.exe

        • Path C:\Users\Admin\AppData\Local\Temp\bound.exe
        • Size 1.6MB
        • SHA256 17917c41858cefcde6676a3149f5e11b71213cc4d55b9b4daa829fc5f2f2b165
        • MD5 SHA1 SHA512 SSDEEP TLSH

        tmp552B.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp552B.tmp.bat
        • Size 57B
        • SHA256 cc3c8b016b9798472b5a4756497b759f13e0f9193759932b915e0f4e361ff34d
        • MD5 SHA1 SHA512 TLSH

        memory/2268-135-0x0000021771900000-0x00000217719B2000-memory.dmp

        memory/2268-134-0x0000021771790000-0x00000217717AE000-memory.dmp

        memory/4816-124-0x00000198C4AE0000-0x00000198C4B02000-memory.dmp

        memory/5416-167-0x0000000005B40000-0x0000000005BD2000-memory.dmp

        memory/5416-168-0x0000000005BD0000-0x0000000005BF6000-memory.dmp

        memory/5416-129-0x00000000009B0000-0x0000000000B42000-memory.dmp

        memory/5416-131-0x0000000005520000-0x0000000005586000-memory.dmp

        memory/5416-169-0x0000000005C00000-0x0000000005C08000-memory.dmp

        memory/5632-141-0x000002C97E410000-0x000002C97E41A000-memory.dmp

        memory/5956-118-0x00007FF91AE70000-0x00007FF91AF8B000-memory.dmp

        memory/5956-113-0x00007FF922540000-0x00007FF92254D000-memory.dmp

        memory/5956-105-0x00007FF90EF90000-0x00007FF90F4B9000-memory.dmp

        memory/5956-110-0x00007FF921BA0000-0x00007FF921BB4000-memory.dmp

        memory/5956-106-0x00007FF921BC0000-0x00007FF921C8D000-memory.dmp

        memory/5956-107-0x00007FF923950000-0x00007FF923975000-memory.dmp

        memory/5956-130-0x00007FF922590000-0x00007FF9225B4000-memory.dmp

        memory/5956-104-0x00007FF9100A0000-0x00007FF910764000-memory.dmp

        memory/5956-100-0x00007FF922550000-0x00007FF922583000-memory.dmp

        memory/5956-97-0x00007FF9234D0000-0x00007FF9234DD000-memory.dmp

        memory/5956-140-0x00007FF91AF90000-0x00007FF91B10F000-memory.dmp

        memory/5956-94-0x00007FF9238C0000-0x00007FF9238D9000-memory.dmp

        memory/5956-145-0x00007FF9238E0000-0x00007FF92390D000-memory.dmp

        memory/5956-148-0x00007FF91AF90000-0x00007FF91B10F000-memory.dmp

        memory/5956-155-0x00007FF922540000-0x00007FF92254D000-memory.dmp

        memory/5956-152-0x00007FF90EF90000-0x00007FF90F4B9000-memory.dmp

        memory/5956-156-0x00007FF91AE70000-0x00007FF91AF8B000-memory.dmp

        memory/5956-154-0x00007FF921BA0000-0x00007FF921BB4000-memory.dmp

        memory/5956-153-0x00007FF921BC0000-0x00007FF921C8D000-memory.dmp

        memory/5956-151-0x00007FF922550000-0x00007FF922583000-memory.dmp

        memory/5956-150-0x00007FF9234D0000-0x00007FF9234DD000-memory.dmp

        memory/5956-149-0x00007FF9238C0000-0x00007FF9238D9000-memory.dmp

        memory/5956-147-0x00007FF922590000-0x00007FF9225B4000-memory.dmp

        memory/5956-146-0x00007FF9269E0000-0x00007FF9269FA000-memory.dmp

        memory/5956-142-0x00007FF9100A0000-0x00007FF910764000-memory.dmp

        memory/5956-143-0x00007FF923950000-0x00007FF923975000-memory.dmp

        memory/5956-144-0x00007FF9281C0000-0x00007FF9281CF000-memory.dmp

        memory/5956-90-0x00007FF91AF90000-0x00007FF91B10F000-memory.dmp

        memory/5956-82-0x00007FF9238E0000-0x00007FF92390D000-memory.dmp

        memory/5956-85-0x00007FF9269E0000-0x00007FF9269FA000-memory.dmp

        memory/5956-88-0x00007FF922590000-0x00007FF9225B4000-memory.dmp

        memory/5956-74-0x00007FF9281C0000-0x00007FF9281CF000-memory.dmp

        memory/5956-72-0x00007FF923950000-0x00007FF923975000-memory.dmp

        memory/5956-66-0x00007FF9100A0000-0x00007FF910764000-memory.dmp