Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/06/2026, 10:25

General

  • Target
    tmpw4zgzkm_.exe
  • Size 9.1MB
  • Sample260602-mgcefaaz9w
  • SHA256 1e4c64e66d954e64ae7e3c639d851f88cdda2e81b43dff26ca7fde158a54def3
  • 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.

  • 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.

  • 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
  • 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\tmpw4zgzkm_.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpw4zgzkm_.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4200
    • 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:4104
    • C:\Users\Admin\AppData\Local\Temp\tmpw4zgzkm_.exe
      "C:\Users\Admin\AppData\Local\Temp\tmpw4zgzkm_.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:692
      • 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:1880
      • 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:3820
        • 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:4612
      • 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:5100
      • 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:4284
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1020
        • 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:2672
        • 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:2244
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1820
          • 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:4772
          • 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:1652
          • 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:1572
          • 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:1172
    • 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:3680
      • 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:1496
      • 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:564
        • 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:3896
    • 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:4464
      • 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:4584
      • 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:4980
        • 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:4452

    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 f019af2e5e74cdf13c963910500f9436c66b6f2901f5056d72f82310f20113b9
          • MD5 SHA1 SHA512 TLSH

          StartupProfileData-Interactive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 21KB
          • SHA256 70b28357d74d1ac22c47063d2712520514f8f09e5cb59888fbb2e7924a27b3f9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 21KB
          • SHA256 8df9c434126d70f3445a23154e7de437db6d501a556607ba4d77e2a06d22d537
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_me3w5tb2.pbp.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_me3w5tb2.pbp.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 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
          • MD5 SHA1 SHA512 TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 b741ccf21c7ebcc55af495b5aabb081cfdfcad33b14162a6af3d679653d844d6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 e2be0db2a0f4edc2f2196f96c851a44c58bc4c06d2def833078e5642e02c41fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 04fb9a1ae0dc37d68c0f8cd8f032e648a29111b2cc87275a2449bfadf52ed6a2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 fcb3ba50f3ccab7149604f1681cbb3422f453221de734f588230b97b4b93431e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 7c7cfe4a764fc2405f72265605cf856be75f0f1e24dbeee79f93cf16e894e62c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          csrss.exe

          • Path C:\Windows\rss\csrss.exe
          • Size 9.1MB
          • SHA256 1e4c64e66d954e64ae7e3c639d851f88cdda2e81b43dff26ca7fde158a54def3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1496-144-0x0000000070860000-0x0000000070BB4000-memory.dmp

          memory/1496-143-0x0000000074890000-0x00000000748DC000-memory.dmp

          memory/1496-154-0x0000000005A90000-0x0000000005AA4000-memory.dmp

          memory/1652-224-0x0000000070C20000-0x0000000070C6C000-memory.dmp

          memory/1652-226-0x0000000070860000-0x0000000070BB4000-memory.dmp

          memory/1880-53-0x0000000005A50000-0x0000000005DA4000-memory.dmp

          memory/1880-66-0x00000000074C0000-0x00000000074D4000-memory.dmp

          memory/1880-65-0x0000000007470000-0x0000000007481000-memory.dmp

          memory/1880-56-0x0000000070AD0000-0x0000000070E24000-memory.dmp

          memory/1880-64-0x0000000007150000-0x00000000071F3000-memory.dmp

          memory/1880-54-0x0000000005F50000-0x0000000005F9C000-memory.dmp

          memory/1880-55-0x0000000070930000-0x000000007097C000-memory.dmp

          memory/2672-141-0x0000000007C40000-0x0000000007CE3000-memory.dmp

          memory/2672-120-0x0000000006430000-0x0000000006784000-memory.dmp

          memory/2672-122-0x0000000006A10000-0x0000000006A5C000-memory.dmp

          memory/2672-133-0x0000000070860000-0x0000000070BB4000-memory.dmp

          memory/2672-132-0x0000000074890000-0x00000000748DC000-memory.dmp

          memory/2672-142-0x0000000006790000-0x00000000067A1000-memory.dmp

          memory/2672-152-0x00000000067D0000-0x00000000067E4000-memory.dmp

          memory/3896-184-0x0000000070C20000-0x0000000070C6C000-memory.dmp

          memory/3896-185-0x0000000070860000-0x0000000070BB4000-memory.dmp

          memory/4104-31-0x0000000005320000-0x0000000005330000-memory.dmp

          memory/4104-14-0x0000000006240000-0x0000000006594000-memory.dmp

          memory/4104-42-0x0000000008060000-0x000000000807A000-memory.dmp

          memory/4104-41-0x0000000008010000-0x0000000008024000-memory.dmp

          memory/4104-40-0x0000000007FF0000-0x0000000007FFE000-memory.dmp

          memory/4104-1-0x0000000005290000-0x00000000052C6000-memory.dmp

          memory/4104-39-0x0000000007FB0000-0x0000000007FC1000-memory.dmp

          memory/4104-2-0x0000000005320000-0x0000000005330000-memory.dmp

          memory/4104-3-0x0000000005960000-0x0000000005F88000-memory.dmp

          memory/4104-4-0x0000000005760000-0x0000000005782000-memory.dmp

          memory/4104-38-0x00000000080B0000-0x0000000008146000-memory.dmp

          memory/4104-5-0x0000000005F90000-0x0000000005FF6000-memory.dmp

          memory/4104-6-0x0000000006000000-0x0000000006066000-memory.dmp

          memory/4104-37-0x0000000007FA0000-0x0000000007FAA000-memory.dmp

          memory/4104-36-0x0000000007EB0000-0x0000000007F53000-memory.dmp

          memory/4104-35-0x0000000007E90000-0x0000000007EAE000-memory.dmp

          memory/4104-30-0x0000000005320000-0x0000000005330000-memory.dmp

          memory/4104-0-0x0000000005320000-0x0000000005330000-memory.dmp

          memory/4104-34-0x0000000005320000-0x0000000005330000-memory.dmp

          memory/4104-24-0x0000000070C20000-0x0000000070F74000-memory.dmp

          memory/4104-23-0x0000000070830000-0x000000007087C000-memory.dmp

          memory/4104-22-0x0000000007E50000-0x0000000007E82000-memory.dmp

          memory/4104-21-0x000000007F930000-0x000000007F940000-memory.dmp

          memory/4104-20-0x0000000007C90000-0x0000000007CAA000-memory.dmp

          memory/4104-19-0x00000000082F0000-0x000000000896A000-memory.dmp

          memory/4104-18-0x0000000007BF0000-0x0000000007C66000-memory.dmp

          memory/4104-17-0x0000000006D00000-0x0000000006D44000-memory.dmp

          memory/4104-15-0x00000000068D0000-0x00000000068EE000-memory.dmp

          memory/4104-43-0x0000000008050000-0x0000000008058000-memory.dmp

          memory/4104-16-0x0000000006910000-0x000000000695C000-memory.dmp

          memory/4284-96-0x0000000005E10000-0x0000000006164000-memory.dmp

          memory/4284-99-0x0000000070AB0000-0x0000000070E04000-memory.dmp

          memory/4284-98-0x0000000070930000-0x000000007097C000-memory.dmp

          memory/4452-244-0x0000000070860000-0x0000000070BB4000-memory.dmp

          memory/4452-243-0x0000000070C20000-0x0000000070C6C000-memory.dmp

          memory/4584-222-0x0000000007720000-0x00000000077C3000-memory.dmp

          memory/4584-223-0x0000000005AF0000-0x0000000005B04000-memory.dmp

          memory/4584-213-0x0000000070C20000-0x0000000070C6C000-memory.dmp

          memory/4584-214-0x0000000070860000-0x0000000070BB4000-memory.dmp

          memory/4772-165-0x0000000006EA0000-0x0000000006EEC000-memory.dmp

          memory/4772-172-0x0000000070860000-0x0000000070BB4000-memory.dmp

          memory/4772-186-0x0000000006740000-0x0000000006754000-memory.dmp

          memory/4772-166-0x0000000070C20000-0x0000000070C6C000-memory.dmp

          memory/4772-183-0x0000000006700000-0x0000000006711000-memory.dmp

          memory/5100-80-0x00000000710C0000-0x0000000071414000-memory.dmp

          memory/5100-79-0x0000000070930000-0x000000007097C000-memory.dmp

          memory/5100-75-0x00000000056D0000-0x0000000005A24000-memory.dmp