Analysis

  • max time kernel
    150s
  • 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
    22/05/2026, 21:50

General

  • Target
    tmpimu4b6l1.exe
  • Size 9.1MB
  • Sample260522-1p9lsshx71
  • SHA256 a6f28f4025e36b67edeae2ff846b402bd34b1a541572e38de2b007429d3fc401
  • 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\tmpimu4b6l1.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpimu4b6l1.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2328
    • 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:532
    • C:\Users\Admin\AppData\Local\Temp\tmpimu4b6l1.exe
      "C:\Users\Admin\AppData\Local\Temp\tmpimu4b6l1.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:3564
      • 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:3220
      • 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:4892
        • 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:4736
      • 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:5020
      • 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:4752
      • 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:4116
        • 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:4468
        • 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:4400
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4972
          • 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:1584
          • 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:4924
          • 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:2636
          • 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:4940
    • 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:4668
      • 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:2296
      • 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:3048
        • 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:2204
    • 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:4368
      • 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:4952
      • 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:1428
        • 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:4984

    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 1f668545b0cdeff4d671441514f241efbc0a9eb792b94d44743f8388fd4df72c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 21KB
          • SHA256 7e8407c891aaaac7837f4dac7b8251b4d1fcf3ce03314219ef9c51361e3928ef
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_ttaawbbr.xqg.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ttaawbbr.xqg.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 c6de67800dd62632cfb8d3959ef2fd707789910076f2040e504b5053f88c3876
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 4515aab6979048c617bbaff9819f7954101c2ebfd970288bd0e06a8029baf679
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 644fbb8c88c430a043d69497179127eb3d32253fb27287cfb6f94096c7b12ce8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 7873c1d0299bc1cb0f66aafb4af2181c7aee0ce289a3f61e0ec0b7a768d084ee
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 50f0aa9d33fe316eee1d46bf42b4b21eacde4317cd8bf5b6ac556b63922e645d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 e20ab692c3d103a5393ed40d4f59a611a5d82a183cea27a39cb741775d3fe7de
          • MD5 SHA1 SHA512 SSDEEP TLSH

          csrss.exe

          • Path C:\Windows\rss\csrss.exe
          • Size 9.1MB
          • SHA256 a6f28f4025e36b67edeae2ff846b402bd34b1a541572e38de2b007429d3fc401
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/532-35-0x00000000074E0000-0x0000000007583000-memory.dmp

          memory/532-41-0x0000000007730000-0x000000000774A000-memory.dmp

          memory/532-21-0x0000000007480000-0x00000000074B2000-memory.dmp

          memory/532-22-0x0000000070540000-0x000000007058C000-memory.dmp

          memory/532-26-0x0000000004A60000-0x0000000004A70000-memory.dmp

          memory/532-25-0x0000000004A60000-0x0000000004A70000-memory.dmp

          memory/532-24-0x0000000004A60000-0x0000000004A70000-memory.dmp

          memory/532-23-0x0000000070AF0000-0x0000000070E44000-memory.dmp

          memory/532-34-0x00000000074C0000-0x00000000074DE000-memory.dmp

          memory/532-18-0x0000000007920000-0x0000000007F9A000-memory.dmp

          memory/532-36-0x00000000075D0000-0x00000000075DA000-memory.dmp

          memory/532-37-0x0000000007690000-0x0000000007726000-memory.dmp

          memory/532-38-0x00000000075F0000-0x0000000007601000-memory.dmp

          memory/532-39-0x0000000007630000-0x000000000763E000-memory.dmp

          memory/532-40-0x0000000007640000-0x0000000007654000-memory.dmp

          memory/532-20-0x000000007F4F0000-0x000000007F500000-memory.dmp

          memory/532-42-0x0000000007670000-0x0000000007678000-memory.dmp

          memory/532-19-0x00000000072C0000-0x00000000072DA000-memory.dmp

          memory/532-17-0x0000000007220000-0x0000000007296000-memory.dmp

          memory/532-16-0x0000000006450000-0x0000000006494000-memory.dmp

          memory/532-1-0x0000000004930000-0x0000000004966000-memory.dmp

          memory/532-15-0x0000000005F40000-0x0000000005F8C000-memory.dmp

          memory/532-2-0x00000000050A0000-0x00000000056C8000-memory.dmp

          memory/532-4-0x0000000005740000-0x00000000057A6000-memory.dmp

          memory/532-14-0x0000000005F00000-0x0000000005F1E000-memory.dmp

          memory/532-0-0x0000000004A60000-0x0000000004A70000-memory.dmp

          memory/532-13-0x00000000058E0000-0x0000000005C34000-memory.dmp

          memory/532-3-0x0000000005030000-0x0000000005052000-memory.dmp

          memory/532-5-0x00000000057B0000-0x0000000005816000-memory.dmp

          memory/1584-183-0x00000000704C0000-0x000000007050C000-memory.dmp

          memory/1584-184-0x0000000070660000-0x00000000709B4000-memory.dmp

          memory/1584-202-0x0000000005830000-0x0000000005844000-memory.dmp

          memory/2204-163-0x00000000064E0000-0x000000000652C000-memory.dmp

          memory/2204-161-0x0000000005F30000-0x0000000006284000-memory.dmp

          memory/2204-192-0x00000000062B0000-0x00000000062C4000-memory.dmp

          memory/2204-182-0x0000000007A40000-0x0000000007A51000-memory.dmp

          memory/2204-171-0x00000000704C0000-0x000000007050C000-memory.dmp

          memory/2204-180-0x00000000076D0000-0x0000000007773000-memory.dmp

          memory/2204-172-0x0000000070660000-0x00000000709B4000-memory.dmp

          memory/2296-141-0x0000000070C50000-0x0000000070FA4000-memory.dmp

          memory/2296-140-0x00000000705A0000-0x00000000705EC000-memory.dmp

          memory/2296-150-0x00000000053F0000-0x0000000005404000-memory.dmp

          memory/2296-129-0x00000000061E0000-0x000000000622C000-memory.dmp

          memory/3220-65-0x00000000076F0000-0x0000000007704000-memory.dmp

          memory/3220-54-0x0000000070640000-0x000000007068C000-memory.dmp

          memory/3220-55-0x0000000070DE0000-0x0000000071134000-memory.dmp

          memory/3220-63-0x0000000007380000-0x0000000007423000-memory.dmp

          memory/3220-52-0x0000000005B80000-0x0000000005ED4000-memory.dmp

          memory/3220-53-0x00000000061D0000-0x000000000621C000-memory.dmp

          memory/3220-64-0x00000000076A0000-0x00000000076B1000-memory.dmp

          memory/4468-139-0x00000000076D0000-0x0000000007773000-memory.dmp

          memory/4468-131-0x0000000070C50000-0x0000000070FA4000-memory.dmp

          memory/4468-130-0x00000000705A0000-0x00000000705EC000-memory.dmp

          memory/4468-149-0x0000000006270000-0x0000000006281000-memory.dmp

          memory/4468-112-0x0000000005DD0000-0x0000000006124000-memory.dmp

          memory/4752-96-0x0000000070640000-0x000000007068C000-memory.dmp

          memory/4752-97-0x0000000070DE0000-0x0000000071134000-memory.dmp

          memory/4924-243-0x0000000005790000-0x00000000057A4000-memory.dmp

          memory/4924-224-0x00000000704C0000-0x000000007050C000-memory.dmp

          memory/4924-225-0x0000000070660000-0x00000000709B4000-memory.dmp

          memory/4952-223-0x0000000007E20000-0x0000000007E31000-memory.dmp

          memory/4952-222-0x0000000007CF0000-0x0000000007D93000-memory.dmp

          memory/4952-214-0x0000000070660000-0x00000000709B4000-memory.dmp

          memory/4952-213-0x00000000704C0000-0x000000007050C000-memory.dmp

          memory/4952-233-0x0000000006510000-0x0000000006524000-memory.dmp

          memory/4984-245-0x00000000704C0000-0x000000007050C000-memory.dmp

          memory/4984-246-0x0000000070660000-0x00000000709B4000-memory.dmp

          memory/5020-78-0x0000000070640000-0x000000007068C000-memory.dmp

          memory/5020-76-0x00000000064E0000-0x0000000006834000-memory.dmp

          memory/5020-79-0x00000000707C0000-0x0000000070B14000-memory.dmp