Analysis

  • max time kernel
    149s
  • max time network
    159s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    02/06/2026, 09:52

General

  • Target
    tmps94jy7s6.exe
  • Size 9.1MB
  • Sample260602-lwebxaav5z
  • SHA256 7ae1e7928853d752228f3e2a6bfad1e798f0f7ed085ffb86425c33bb44b8c205
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba payload 1 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 6 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

  • Drops file in System32 directory 9 IoCs
  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 11 IoCs

    Using powershell.exe command.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Modifies trusted root certificate store through registry 1 TTPs 2 IoCs

    A root certificate was added, modified, or removed in the trusted certificate store registry paths.

  • System Location Discovery: System Language Discovery 1 TTPs 18 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 18 IoCs
  • Suspicious use of WriteProcessMemory 15 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:\Users\Admin\AppData\Local\Temp\tmps94jy7s6.exe
    "C:\Users\Admin\AppData\Local\Temp\tmps94jy7s6.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1448
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3008
    • C:\Users\Admin\AppData\Local\Temp\tmps94jy7s6.exe
      "C:\Users\Admin\AppData\Local\Temp\tmps94jy7s6.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2496
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3128
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:5016
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:3640
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2268
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4904
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Modifies trusted root certificate store through registry
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1808
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4180
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1932
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1592
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2236
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3456
          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:4088
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
            4⤵
            • Scheduled Task/Job: Scheduled Task
            PID:3304
    • C:\Windows\rss\csrss.exe
      "C:\Windows\rss\csrss.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2776
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        2⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3004
      • C:\Windows\rss\csrss.exe
        "C:\Windows\rss\csrss.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3516
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          3⤵
          • Drops file in System32 directory
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1052
    • C:\Windows\rss\csrss.exe
      C:\Windows\rss\csrss.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1844
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        2⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3344
      • C:\Windows\rss\csrss.exe
        "C:\Windows\rss\csrss.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3416
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          3⤵
          • Drops file in System32 directory
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4652

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          powershell.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
          • Size 2KB
          • SHA256 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
          • MD5 SHA1 SHA512 TLSH

          StartupProfileData-Interactive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 20KB
          • SHA256 040dbf6df178a7fbf14e9a0e1d5336950f19e081e4885ed0b0e3d07d7992c0bc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 20KB
          • SHA256 830e806392d48e1188d9c9e9860d3fcfb56ce5914e3f8733cf82fbe782952202
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_4jp3y5wn.y0b.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4jp3y5wn.y0b.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          injector.exe

          • Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
          • Size 281KB
          • SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          powershell.exe.log

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
          • Size 2KB
          • SHA256 e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
          • MD5 SHA1 SHA512 TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 f1d238d4a7f46194ee3ebd45d29b61d1cf4fb946c531d32dc58fffdea1319dc2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 d9dc4434f10ff5f967f8d179a0302c55d224d21505ae5d87463dfcbcd70b22fe
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 d1e3041c8a49b357be8f1dedc0c552c8761e4d95fe0d14f45faf6332bc0c0b55
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 d717dba53105633b1b551cbecc829b02f97d0aad237b6b099352c7349e7e62fe
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 bed27c8eb91b91099d1cd03fdfb6695c8c725981762d895298770d80b7b615ba
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 2d25358fd3bec9a228a81f9abd7597b6307cbc6f4bc9ac75d5650c6b334b8bbf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          csrss.exe

          • Path C:\Windows\rss\csrss.exe
          • Size 9.1MB
          • SHA256 7ae1e7928853d752228f3e2a6bfad1e798f0f7ed085ffb86425c33bb44b8c205
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1052-168-0x00000000704F0000-0x0000000070847000-memory.dmp

          memory/1052-167-0x0000000074CD0000-0x0000000074D1C000-memory.dmp

          memory/2236-148-0x00000000055B0000-0x0000000005907000-memory.dmp

          memory/2236-150-0x0000000005FB0000-0x0000000005FFC000-memory.dmp

          memory/2236-158-0x0000000074CD0000-0x0000000074D1C000-memory.dmp

          memory/2236-159-0x00000000704F0000-0x0000000070847000-memory.dmp

          memory/2236-166-0x0000000006CC0000-0x0000000006D64000-memory.dmp

          memory/2236-175-0x0000000005450000-0x0000000005465000-memory.dmp

          memory/2268-72-0x00000000705F0000-0x000000007063C000-memory.dmp

          memory/2268-73-0x0000000070770000-0x0000000070AC7000-memory.dmp

          memory/2268-70-0x00000000055E0000-0x0000000005937000-memory.dmp

          memory/3004-130-0x00000000706C0000-0x0000000070A17000-memory.dmp

          memory/3004-129-0x0000000070540000-0x000000007058C000-memory.dmp

          memory/3008-30-0x00000000071D0000-0x0000000007274000-memory.dmp

          memory/3008-5-0x0000000005670000-0x00000000056D6000-memory.dmp

          memory/3008-39-0x0000000007420000-0x0000000007428000-memory.dmp

          memory/3008-1-0x0000000002890000-0x00000000028C6000-memory.dmp

          memory/3008-2-0x0000000002940000-0x0000000002950000-memory.dmp

          memory/3008-3-0x0000000004FD0000-0x00000000055FA000-memory.dmp

          memory/3008-4-0x0000000004EA0000-0x0000000004EC2000-memory.dmp

          memory/3008-38-0x0000000007400000-0x000000000741A000-memory.dmp

          memory/3008-6-0x0000000005810000-0x0000000005876000-memory.dmp

          memory/3008-13-0x0000000005880000-0x0000000005BD7000-memory.dmp

          memory/3008-37-0x00000000073B0000-0x00000000073C5000-memory.dmp

          memory/3008-36-0x00000000073A0000-0x00000000073AE000-memory.dmp

          memory/3008-35-0x0000000007350000-0x0000000007361000-memory.dmp

          memory/3008-34-0x0000000007440000-0x00000000074D6000-memory.dmp

          memory/3008-33-0x0000000007330000-0x000000000733A000-memory.dmp

          memory/3008-14-0x0000000005D30000-0x0000000005D4E000-memory.dmp

          memory/3008-32-0x00000000072F0000-0x000000000730A000-memory.dmp

          memory/3008-15-0x0000000005DF0000-0x0000000005E3C000-memory.dmp

          memory/3008-16-0x0000000006250000-0x0000000006296000-memory.dmp

          memory/3008-31-0x0000000007940000-0x0000000007FBA000-memory.dmp

          memory/3008-0-0x0000000002940000-0x0000000002950000-memory.dmp

          memory/3008-17-0x000000007F410000-0x000000007F420000-memory.dmp

          memory/3008-27-0x0000000002940000-0x0000000002950000-memory.dmp

          memory/3008-29-0x00000000071B0000-0x00000000071CE000-memory.dmp

          memory/3008-18-0x0000000007150000-0x0000000007184000-memory.dmp

          memory/3008-19-0x00000000704E0000-0x000000007052C000-memory.dmp

          memory/3008-20-0x0000000070660000-0x00000000709B7000-memory.dmp

          memory/3008-28-0x0000000002940000-0x0000000002950000-memory.dmp

          memory/3128-59-0x0000000007B90000-0x0000000007BA1000-memory.dmp

          memory/3128-48-0x00000000060C0000-0x0000000006417000-memory.dmp

          memory/3128-49-0x0000000006640000-0x000000000668C000-memory.dmp

          memory/3128-50-0x00000000705F0000-0x000000007063C000-memory.dmp

          memory/3128-51-0x0000000070800000-0x0000000070B57000-memory.dmp

          memory/3128-58-0x0000000007860000-0x0000000007904000-memory.dmp

          memory/3128-60-0x0000000007BE0000-0x0000000007BF5000-memory.dmp

          memory/3344-210-0x0000000005DC0000-0x0000000005DD5000-memory.dmp

          memory/3344-201-0x0000000005D80000-0x0000000005D91000-memory.dmp

          memory/3344-187-0x00000000704F0000-0x0000000070847000-memory.dmp

          memory/3344-186-0x0000000074CD0000-0x0000000074D1C000-memory.dmp

          memory/3456-202-0x0000000074CD0000-0x0000000074D1C000-memory.dmp

          memory/3456-203-0x00000000704F0000-0x0000000070847000-memory.dmp

          memory/4180-128-0x00000000078A0000-0x0000000007944000-memory.dmp

          memory/4180-115-0x0000000006150000-0x00000000064A7000-memory.dmp

          memory/4180-119-0x0000000006690000-0x00000000066DC000-memory.dmp

          memory/4180-120-0x0000000070540000-0x000000007058C000-memory.dmp

          memory/4180-138-0x0000000005FD0000-0x0000000005FE5000-memory.dmp

          memory/4180-137-0x0000000007C40000-0x0000000007C51000-memory.dmp

          memory/4180-121-0x00000000706C0000-0x0000000070A17000-memory.dmp

          memory/4652-221-0x00000000704F0000-0x0000000070847000-memory.dmp

          memory/4652-220-0x0000000074CD0000-0x0000000074D1C000-memory.dmp

          memory/4904-90-0x0000000070840000-0x0000000070B97000-memory.dmp

          memory/4904-81-0x0000000005EC0000-0x0000000006217000-memory.dmp

          memory/4904-89-0x00000000705F0000-0x000000007063C000-memory.dmp