Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/10/2026, 00:01

General

  • Target
    3d0f1bce791377997266a1426a514eb2304ebe44cbad21dc2b8bbbb90ba060a2.exe
  • Size 1.2MB
  • Sample261031-aa3xlahs8n
  • SHA256 3d0f1bce791377997266a1426a514eb2304ebe44cbad21dc2b8bbbb90ba060a2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • gcleaner

C2
  • 185.156.73.98

Signatures

  • Family: GCleaner

    GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 TTPs 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell and hide display window.

  • Downloads MZ/PE file 30 IoCs
  • Executes dropped EXE 30 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops desktop.ini file(s) 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • 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.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\explorer.exe
    explorer.exe /LOADSAVEDWINDOWS
    1⤵
      PID:2140
      • C:\Users\Admin\AppData\Local\Temp\3d0f1bce791377997266a1426a514eb2304ebe44cbad21dc2b8bbbb90ba060a2.exe
        "C:\Users\Admin\AppData\Local\Temp\3d0f1bce791377997266a1426a514eb2304ebe44cbad21dc2b8bbbb90ba060a2.exe"
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:5240
      • C:\Windows\SysWOW64\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\3d0f1bce791377997266a1426a514eb2304ebe44cbad21dc2b8bbbb90ba060a2.exe"
        2⤵
        • Downloads MZ/PE file
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4248
        • C:\Users\Admin\AppData\Roaming\vKtfqj4\N9VQkX8D6bRx.exe
          "C:\Users\Admin\AppData\Roaming\vKtfqj4\N9VQkX8D6bRx.exe"
          3⤵
          • Executes dropped EXE
          PID:4372
        • C:\Users\Admin\AppData\Roaming\sfdS2s\Vqdq4dGSxm6KR.exe
          "C:\Users\Admin\AppData\Roaming\sfdS2s\Vqdq4dGSxm6KR.exe"
          3⤵
          • Executes dropped EXE
          PID:1588
        • C:\Users\Admin\AppData\Roaming\MuO4XK\YguufIJeWyxa6.exe
          "C:\Users\Admin\AppData\Roaming\MuO4XK\YguufIJeWyxa6.exe"
          3⤵
          • Executes dropped EXE
          PID:3416
        • C:\Users\Admin\AppData\Roaming\kFhVwXt3\oh8TLgcTrzl6.exe
          "C:\Users\Admin\AppData\Roaming\kFhVwXt3\oh8TLgcTrzl6.exe"
          3⤵
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Executes dropped EXE
          • Identifies Wine through registry keys
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2388
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell.exe -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath 'C:\Windows\chromeupdate' -ExclusionProcess 'chromeupdate.exe' -ExclusionExtension '.exe'"
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2776
          • C:\Windows\chromeupdate\chromeupdate.exe
            "C:\Windows\chromeupdate\chromeupdate.exe"
            4⤵
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Executes dropped EXE
            • Identifies Wine through registry keys
            • Drops desktop.ini file(s)
            • Reads the TCP/IP host and domain name from the registry
            • Checks processor information in registry
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:4652
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              powershell.exe -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath 'C:\Windows\chromeupdate' -ExclusionProcess 'chromeupdate.exe' -ExclusionExtension '.exe'"
              5⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:2248
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c timeout /t 3 /nobreak > nul & del /f /q "C:\Users\Admin\AppData\Roaming\kFhVwXt3\oh8TLgcTrzl6.exe" & rmdir "C:\Users\Admin\AppData\Roaming\kFhVwXt3"
            4⤵
            • Executes a command shell one-liner
            • Suspicious use of WriteProcessMemory
            PID:5888
            • C:\Windows\system32\timeout.exe
              timeout /t 3 /nobreak
              5⤵
              • Delays execution with timeout.exe
              PID:3060
        • C:\Users\Admin\AppData\Roaming\EUpIh8AE\y4Zv6QUqfGH.exe
          "C:\Users\Admin\AppData\Roaming\EUpIh8AE\y4Zv6QUqfGH.exe"
          3⤵
          • Executes dropped EXE
          PID:3596
        • C:\Users\Admin\AppData\Roaming\C6vsATH\plkAKPuwNTS.exe
          "C:\Users\Admin\AppData\Roaming\C6vsATH\plkAKPuwNTS.exe"
          3⤵
          • Executes dropped EXE
          PID:1188
        • C:\Users\Admin\AppData\Roaming\6VHPCCX8UI\goswtyd8mvz.exe
          "C:\Users\Admin\AppData\Roaming\6VHPCCX8UI\goswtyd8mvz.exe"
          3⤵
          • Executes dropped EXE
          PID:4448
        • C:\Users\Admin\AppData\Roaming\uT9rLJaA6K\Exqq8L8SE.exe
          "C:\Users\Admin\AppData\Roaming\uT9rLJaA6K\Exqq8L8SE.exe"
          3⤵
          • Executes dropped EXE
          PID:5112
        • C:\Users\Admin\AppData\Roaming\i5nSmdTTu\IdCevKVRZM.exe
          "C:\Users\Admin\AppData\Roaming\i5nSmdTTu\IdCevKVRZM.exe"
          3⤵
          • Executes dropped EXE
          PID:1052
        • C:\Users\Admin\AppData\Roaming\gKfCy5Ty\C23wpMzbutmO.exe
          "C:\Users\Admin\AppData\Roaming\gKfCy5Ty\C23wpMzbutmO.exe"
          3⤵
          • Executes dropped EXE
          PID:2144
        • C:\Users\Admin\AppData\Roaming\P8KMlqea\uE78wQ58P.exe
          "C:\Users\Admin\AppData\Roaming\P8KMlqea\uE78wQ58P.exe"
          3⤵
          • Executes dropped EXE
          PID:3012
        • C:\Users\Admin\AppData\Roaming\DXcwSLtTfbZ\uJ5S9rst3.exe
          "C:\Users\Admin\AppData\Roaming\DXcwSLtTfbZ\uJ5S9rst3.exe"
          3⤵
          • Executes dropped EXE
          PID:5612
        • C:\Users\Admin\AppData\Roaming\rvNkpVKKPs\sjmNggNMmqs.exe
          "C:\Users\Admin\AppData\Roaming\rvNkpVKKPs\sjmNggNMmqs.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Reads the TCP/IP host and domain name from the registry
          • Suspicious behavior: EnumeratesProcesses
          PID:4700
        • C:\Users\Admin\AppData\Roaming\L07DRvFVL6\VdMZMDXWI.exe
          "C:\Users\Admin\AppData\Roaming\L07DRvFVL6\VdMZMDXWI.exe"
          3⤵
          • Executes dropped EXE
          PID:3852
        • C:\Users\Admin\AppData\Roaming\njXrG9MYx\GXHwuascTyYg.exe
          "C:\Users\Admin\AppData\Roaming\njXrG9MYx\GXHwuascTyYg.exe"
          3⤵
          • Executes dropped EXE
          PID:5392
        • C:\Users\Admin\AppData\Roaming\dMlNnaKsz\PYOPbjO8UM2.exe
          "C:\Users\Admin\AppData\Roaming\dMlNnaKsz\PYOPbjO8UM2.exe"
          3⤵
          • Executes dropped EXE
          PID:4320
        • C:\Users\Admin\AppData\Roaming\KoMcY\rE5ST1us4.exe
          "C:\Users\Admin\AppData\Roaming\KoMcY\rE5ST1us4.exe"
          3⤵
          • Executes dropped EXE
          PID:4516
        • C:\Users\Admin\AppData\Roaming\Gqq82IZdNQL\K9MxRtrzqcRRY.exe
          "C:\Users\Admin\AppData\Roaming\Gqq82IZdNQL\K9MxRtrzqcRRY.exe"
          3⤵
          • Executes dropped EXE
          PID:2988
        • C:\Users\Admin\AppData\Roaming\8y7FTbOgr7X\pM9W0hsuNVKL.exe
          "C:\Users\Admin\AppData\Roaming\8y7FTbOgr7X\pM9W0hsuNVKL.exe"
          3⤵
          • Executes dropped EXE
          PID:4272
        • C:\Users\Admin\AppData\Roaming\q2p6MQjQlh\KFelOvDlnqCa.exe
          "C:\Users\Admin\AppData\Roaming\q2p6MQjQlh\KFelOvDlnqCa.exe"
          3⤵
          • Executes dropped EXE
          PID:5696
        • C:\Users\Admin\AppData\Roaming\slAkSoZiK9\p6SIl4rnJN.exe
          "C:\Users\Admin\AppData\Roaming\slAkSoZiK9\p6SIl4rnJN.exe"
          3⤵
          • Executes dropped EXE
          PID:2136
        • C:\Users\Admin\AppData\Roaming\xWVDppOlV\ANp88vGMo8qzD.exe
          "C:\Users\Admin\AppData\Roaming\xWVDppOlV\ANp88vGMo8qzD.exe"
          3⤵
          • Executes dropped EXE
          PID:3272
        • C:\Users\Admin\AppData\Roaming\bvjioTko4\9PyCSNRX5VaQ.exe
          "C:\Users\Admin\AppData\Roaming\bvjioTko4\9PyCSNRX5VaQ.exe"
          3⤵
          • Executes dropped EXE
          PID:2164
        • C:\Users\Admin\AppData\Roaming\pCEaGYrr\EvRZFetpcjQpv.exe
          "C:\Users\Admin\AppData\Roaming\pCEaGYrr\EvRZFetpcjQpv.exe"
          3⤵
          • Executes dropped EXE
          PID:3264
        • C:\Users\Admin\AppData\Roaming\7anc370Oszr\VtkQQM5GdZQ.exe
          "C:\Users\Admin\AppData\Roaming\7anc370Oszr\VtkQQM5GdZQ.exe"
          3⤵
          • Executes dropped EXE
          PID:5944
        • C:\Users\Admin\AppData\Roaming\W63uYzSIHlL\sQHnKIfWw6d.exe
          "C:\Users\Admin\AppData\Roaming\W63uYzSIHlL\sQHnKIfWw6d.exe"
          3⤵
          • Executes dropped EXE
          PID:3756
        • C:\Users\Admin\AppData\Roaming\TnKFNG91uD\o56786sgodKfE.exe
          "C:\Users\Admin\AppData\Roaming\TnKFNG91uD\o56786sgodKfE.exe"
          3⤵
          • Executes dropped EXE
          PID:1260
        • C:\Users\Admin\AppData\Roaming\iq86Tp17o5\qbsoPshE0wO.exe
          "C:\Users\Admin\AppData\Roaming\iq86Tp17o5\qbsoPshE0wO.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:5648
    • C:\Windows\chromeupdate\chromeupdate.exe
      C:\Windows\chromeupdate\chromeupdate.exe
      1⤵
      • Executes dropped EXE
      PID:2584

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          ~2fb13d8c.dat

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\~2fb13d8c.dat
          • Size 926KB
          • SHA256 6606ea30c164992165c752ea25e997bf1e4191d008ff15edd4996ba523e8633e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 a976a31824c3a0cc2a6b0fd9ec6045c398d82990e5e96df2ad86ba09a9b05be5
          • MD5 SHA1 SHA512 TLSH

          YCL.exe

          • Path C:\Users\Admin\AppData\Local\Temp\C3vGJdJ8CEeuD4uJ\YCL.exe
          • Size 2.4MB
          • SHA256 562befc15c7530127bae89358c12bc7d902b74e747b349064c6a357cd1c49556
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_ee3vhvgy.yix.psm1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ee3vhvgy.yix.psm1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          qbsoPshE0wO.exe

          • Path C:\Users\Admin\AppData\Roaming\iq86Tp17o5\qbsoPshE0wO.exe
          • Size 874KB
          • SHA256 3eb383f192c4a3b30d7fbb6d34238a49c6969597bb286de790df2709f2a26343
          • MD5 SHA1 SHA512 SSDEEP TLSH

          oh8TLgcTrzl6.exe

          • Path C:\Users\Admin\AppData\Roaming\kFhVwXt3\oh8TLgcTrzl6.exe
          • Size 3.0MB
          • SHA256 03a7ab716438198a69e19f37a5c6696775e756f35c29f8fe6b5fc1338b22d25c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          sjmNggNMmqs.exe

          • Path C:\Users\Admin\AppData\Roaming\rvNkpVKKPs\sjmNggNMmqs.exe
          • Size 581KB
          • SHA256 b4990aa8dd771a09af9b559f334d680d2cfce5ba8da4e5319b36720c9159897b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          N9VQkX8D6bRx.exe

          • Path C:\Users\Admin\AppData\Roaming\vKtfqj4\N9VQkX8D6bRx.exe
          • Size 16KB
          • SHA256 69fe2d9f48833d84fc001182e34d1e004a1019208f261c19654598dbc390bc3c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1052-87-0x00007FF6F6070000-0x00007FF6F607C000-memory.dmp

          memory/1188-69-0x00007FF63EAE0000-0x00007FF63EAEC000-memory.dmp

          memory/1260-314-0x00007FF77B610000-0x00007FF77B61C000-memory.dmp

          memory/1588-45-0x00007FF7D5BE0000-0x00007FF7D5BEC000-memory.dmp

          memory/2136-277-0x00007FF7E63C0000-0x00007FF7E63CC000-memory.dmp

          memory/2144-93-0x00007FF6F8580000-0x00007FF6F858C000-memory.dmp

          memory/2164-290-0x00007FF7DC450000-0x00007FF7DC45C000-memory.dmp

          memory/2248-335-0x000001EBEAEC0000-0x000001EBEAF72000-memory.dmp

          memory/2776-264-0x000001EC7F8C0000-0x000001EC7F8E2000-memory.dmp

          memory/2776-269-0x000001EC7FD70000-0x000001EC7FD7A000-memory.dmp

          memory/2776-267-0x000001EC7FC90000-0x000001EC7FCAE000-memory.dmp

          memory/2776-268-0x000001EC7FCB0000-0x000001EC7FD62000-memory.dmp

          memory/2988-249-0x00007FF75D620000-0x00007FF75D62C000-memory.dmp

          memory/3012-99-0x00007FF606CA0000-0x00007FF606CAC000-memory.dmp

          memory/3264-296-0x00007FF7EAD70000-0x00007FF7EAD7C000-memory.dmp

          memory/3272-284-0x00007FF749AA0000-0x00007FF749AAC000-memory.dmp

          memory/3416-51-0x00007FF7291A0000-0x00007FF7291AC000-memory.dmp

          memory/3596-63-0x00007FF650370000-0x00007FF65037C000-memory.dmp

          memory/3756-308-0x00007FF6224E0000-0x00007FF6224EC000-memory.dmp

          memory/3852-225-0x00007FF7D1BD0000-0x00007FF7D1BDC000-memory.dmp

          memory/4248-18-0x00000000003B0000-0x00000000003E3000-memory.dmp

          memory/4248-10-0x00000000003B0000-0x00000000003E3000-memory.dmp

          memory/4248-329-0x00000000003B0000-0x00000000003E3000-memory.dmp

          memory/4248-6-0x00000000003B0000-0x00000000003E3000-memory.dmp

          memory/4248-8-0x00000000003B0000-0x00000000003E3000-memory.dmp

          memory/4248-5-0x00000000003A0000-0x00000000003A1000-memory.dmp

          memory/4248-31-0x0000000010000000-0x000000001001C000-memory.dmp

          memory/4248-17-0x00000000003B0000-0x00000000003E3000-memory.dmp

          memory/4248-16-0x00000000003B0000-0x00000000003E3000-memory.dmp

          memory/4248-13-0x00000000003B0000-0x00000000003E3000-memory.dmp

          memory/4248-9-0x00000000003B0000-0x00000000003E3000-memory.dmp

          memory/4248-7-0x00000000003B0000-0x00000000003E3000-memory.dmp

          memory/4248-14-0x00000000003B0000-0x00000000003E3000-memory.dmp

          memory/4248-15-0x00000000003B0000-0x00000000003E3000-memory.dmp

          memory/4272-255-0x00007FF67FA70000-0x00007FF67FA7C000-memory.dmp

          memory/4320-237-0x00007FF782A80000-0x00007FF782A8C000-memory.dmp

          memory/4372-39-0x00007FF6A1AE0000-0x00007FF6A1AEC000-memory.dmp

          memory/4448-75-0x00007FF7B4480000-0x00007FF7B448C000-memory.dmp

          memory/4516-243-0x00007FF77D110000-0x00007FF77D11C000-memory.dmp

          memory/4700-219-0x00007FF6D12D0000-0x00007FF6D1369000-memory.dmp

          memory/5112-81-0x00007FF735810000-0x00007FF73581C000-memory.dmp

          memory/5240-0-0x00000000022F0000-0x00000000022F1000-memory.dmp

          memory/5240-4-0x0000000002400000-0x000000000242F000-memory.dmp

          memory/5240-3-0x0000000000400000-0x0000000000538000-memory.dmp

          memory/5240-2-0x0000000002330000-0x0000000002331000-memory.dmp

          memory/5240-1-0x00000000004E5000-0x00000000004E6000-memory.dmp

          memory/5392-231-0x00007FF7D1080000-0x00007FF7D108C000-memory.dmp

          memory/5612-105-0x00007FF70BBC0000-0x00007FF70BBCC000-memory.dmp

          memory/5696-261-0x00007FF684D60000-0x00007FF684D6C000-memory.dmp

          memory/5944-302-0x00007FF7517D0000-0x00007FF7517DC000-memory.dmp