Analysis

  • max time kernel
    150s
  • max time network
    150s
  • 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, 09:38

General

  • Target
    tmpgs2fssd_.exe
  • Size 4.2MB
  • Sample260602-ll3lrabt5n
  • SHA256 1e146ab127759a07a58c869ea63459fb611607750ea7c023ffe36a56079658c9
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Glupteba

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

  • Glupteba payload 22 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\tmpgs2fssd_.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpgs2fssd_.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3532
    • 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:4272
    • C:\Users\Admin\AppData\Local\Temp\tmpgs2fssd_.exe
      "C:\Users\Admin\AppData\Local\Temp\tmpgs2fssd_.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:3708
      • 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:1616
      • 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:4712
        • 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:4716
      • 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:452
      • 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:4996
      • 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:3728
        • 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:2408
        • 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:1684
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4516
          • 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:2940
          • 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:4716
          • 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:2748
          • 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:4376
    • 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:1596
      • 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:312
      • 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:3844
        • 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:2440
    • 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:2672
      • 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:4984
      • 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:820
        • 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:3412

    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 2c7e20db11abe315cbe07f3a7aa3f0465e560dd5f1f348f9399ed4c308eeb8a3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 21KB
          • SHA256 e1ed60f072ac458e028b49479a4b8f1d6f79ca3bceb4b247372186fa6fef2440
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_klooa3cg.m5n.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_klooa3cg.m5n.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 2cfd1ad359775a9a4d6067e23f3e6455db3a4764350cf7dbccc7219fa397671b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 8d12dec910dd37f5d2603a8d95d60a8f2cc8b1c380e962dc452c98fc7552c6dd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 b9e376b5db4044c7c4325c92f3f4ef583333cb67e040932a22a86335d556a8f3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 1e0819b44d4b187b8c9a2cee22523db6ae6691f7de683bcbdcf1167802606d55
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 6565c061d8b77045c6652b48469965501fd688556ec928ccf8a368418d9b0292
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 6afd81bc4ba7bd8e2206ff8a25af9e4df922bbb8925ecbd6c4e1da15d038958f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          csrss.exe

          • Path C:\Windows\rss\csrss.exe
          • Size 4.2MB
          • SHA256 1e146ab127759a07a58c869ea63459fb611607750ea7c023ffe36a56079658c9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/312-123-0x0000000005420000-0x0000000005774000-memory.dmp

          memory/312-132-0x00000000061E0000-0x000000000622C000-memory.dmp

          memory/312-152-0x0000000005AE0000-0x0000000005AF4000-memory.dmp

          memory/312-144-0x0000000005AA0000-0x0000000005AB1000-memory.dmp

          memory/312-133-0x0000000070C50000-0x0000000070C9C000-memory.dmp

          memory/312-142-0x00000000072B0000-0x0000000007353000-memory.dmp

          memory/312-134-0x0000000071A50000-0x0000000071DA4000-memory.dmp

          memory/452-85-0x0000000070CF0000-0x0000000070D3C000-memory.dmp

          memory/452-86-0x0000000070E70000-0x00000000711C4000-memory.dmp

          memory/452-83-0x00000000062F0000-0x0000000006644000-memory.dmp

          memory/820-285-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/1596-171-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/1616-70-0x0000000007290000-0x0000000007333000-memory.dmp

          memory/1616-61-0x0000000070CF0000-0x0000000070D3C000-memory.dmp

          memory/1616-72-0x00000000075F0000-0x0000000007604000-memory.dmp

          memory/1616-71-0x00000000075A0000-0x00000000075B1000-memory.dmp

          memory/1616-62-0x0000000070EA0000-0x00000000711F4000-memory.dmp

          memory/1616-59-0x00000000059F0000-0x0000000005D44000-memory.dmp

          memory/1616-60-0x00000000060E0000-0x000000000612C000-memory.dmp

          memory/2408-169-0x0000000005960000-0x0000000005974000-memory.dmp

          memory/2408-168-0x0000000007120000-0x0000000007131000-memory.dmp

          memory/2408-156-0x0000000070C50000-0x0000000070C9C000-memory.dmp

          memory/2408-157-0x0000000071A50000-0x0000000071DA4000-memory.dmp

          memory/2408-165-0x0000000006DE0000-0x0000000006E83000-memory.dmp

          memory/2440-203-0x0000000070B70000-0x0000000070BBC000-memory.dmp

          memory/2440-223-0x00000000067F0000-0x0000000006804000-memory.dmp

          memory/2440-214-0x0000000008000000-0x0000000008011000-memory.dmp

          memory/2440-204-0x0000000071310000-0x0000000071664000-memory.dmp

          memory/2672-284-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/2940-200-0x00000000079C0000-0x0000000007A63000-memory.dmp

          memory/2940-184-0x0000000070B70000-0x0000000070BBC000-memory.dmp

          memory/2940-201-0x0000000006570000-0x0000000006581000-memory.dmp

          memory/2940-185-0x0000000071310000-0x0000000071664000-memory.dmp

          memory/2940-212-0x00000000065B0000-0x00000000065C4000-memory.dmp

          memory/2940-172-0x0000000006110000-0x0000000006464000-memory.dmp

          memory/2940-182-0x0000000006CD0000-0x0000000006D1C000-memory.dmp

          memory/3412-270-0x0000000070B70000-0x0000000070BBC000-memory.dmp

          memory/3412-271-0x0000000071310000-0x0000000071664000-memory.dmp

          memory/3532-2-0x0000000003040000-0x000000000392B000-memory.dmp

          memory/3532-1-0x0000000002C30000-0x0000000003032000-memory.dmp

          memory/3532-48-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3532-49-0x0000000003040000-0x000000000392B000-memory.dmp

          memory/3708-120-0x0000000002C10000-0x000000000300D000-memory.dmp

          memory/3708-51-0x0000000002C10000-0x000000000300D000-memory.dmp

          memory/3708-119-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3728-167-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3728-329-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3728-305-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3728-311-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3728-317-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3728-280-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3728-323-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3728-299-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3728-335-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3728-287-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3728-341-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3728-347-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3728-293-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/3844-281-0x0000000000400000-0x0000000000D1B000-memory.dmp

          memory/4272-35-0x0000000005390000-0x00000000053A0000-memory.dmp

          memory/4272-3-0x0000000005390000-0x00000000053A0000-memory.dmp

          memory/4272-8-0x0000000006210000-0x0000000006276000-memory.dmp

          memory/4272-16-0x0000000006280000-0x00000000065D4000-memory.dmp

          memory/4272-17-0x0000000006850000-0x000000000686E000-memory.dmp

          memory/4272-18-0x0000000006880000-0x00000000068CC000-memory.dmp

          memory/4272-19-0x0000000006DB0000-0x0000000006DF4000-memory.dmp

          memory/4272-20-0x0000000007B60000-0x0000000007BD6000-memory.dmp

          memory/4272-21-0x0000000008260000-0x00000000088DA000-memory.dmp

          memory/4272-22-0x0000000007C00000-0x0000000007C1A000-memory.dmp

          memory/4272-6-0x0000000005970000-0x0000000005992000-memory.dmp

          memory/4272-23-0x000000007FCB0000-0x000000007FCC0000-memory.dmp

          memory/4272-5-0x00000000059D0000-0x0000000005FF8000-memory.dmp

          memory/4272-45-0x0000000007FC0000-0x0000000007FC8000-memory.dmp

          memory/4272-44-0x0000000008070000-0x000000000808A000-memory.dmp

          memory/4272-43-0x0000000007F80000-0x0000000007F94000-memory.dmp

          memory/4272-4-0x0000000005290000-0x00000000052C6000-memory.dmp

          memory/4272-42-0x0000000007F70000-0x0000000007F7E000-memory.dmp

          memory/4272-41-0x0000000007F30000-0x0000000007F41000-memory.dmp

          memory/4272-7-0x0000000006070000-0x00000000060D6000-memory.dmp

          memory/4272-25-0x0000000070BF0000-0x0000000070C3C000-memory.dmp

          memory/4272-24-0x0000000007DC0000-0x0000000007DF2000-memory.dmp

          memory/4272-26-0x0000000070D70000-0x00000000710C4000-memory.dmp

          memory/4272-37-0x0000000005390000-0x00000000053A0000-memory.dmp

          memory/4272-36-0x0000000005390000-0x00000000053A0000-memory.dmp

          memory/4272-38-0x0000000007E20000-0x0000000007EC3000-memory.dmp

          memory/4272-34-0x0000000007E00000-0x0000000007E1E000-memory.dmp

          memory/4272-40-0x0000000007FD0000-0x0000000008066000-memory.dmp

          memory/4272-39-0x0000000007F10000-0x0000000007F1A000-memory.dmp

          memory/4716-232-0x0000000070B70000-0x0000000070BBC000-memory.dmp

          memory/4716-233-0x0000000071310000-0x0000000071664000-memory.dmp

          memory/4984-242-0x0000000070B70000-0x0000000070BBC000-memory.dmp

          memory/4984-253-0x00000000078D0000-0x00000000078E1000-memory.dmp

          memory/4984-243-0x0000000071310000-0x0000000071664000-memory.dmp

          memory/4996-104-0x0000000070CF0000-0x0000000070D3C000-memory.dmp

          memory/4996-100-0x0000000005440000-0x0000000005794000-memory.dmp

          memory/4996-105-0x0000000071490000-0x00000000717E4000-memory.dmp