Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/05/2026, 21:40

General

  • Target
    tmpz72uqk35.exe
  • Size 9.1MB
  • Sample260522-1jdl6shw9s
  • SHA256 6b03bb79a0dc335e541567ae09f7cc689c10915a3f49aebacfb7301d1bc4ad4b
  • 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\tmpz72uqk35.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpz72uqk35.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2880
    • 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:5112
    • C:\Users\Admin\AppData\Local\Temp\tmpz72uqk35.exe
      "C:\Users\Admin\AppData\Local\Temp\tmpz72uqk35.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:2740
      • 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:3204
      • 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:3716
        • 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:4020
      • 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:2996
      • 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:3260
      • 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:2124
        • 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:1920
        • 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:3200
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3616
          • 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:1968
          • 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:2344
          • 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:2888
          • 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:1372
    • 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:964
      • 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:5084
      • 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:2060
        • 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:3704
    • 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:4424
      • 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:2100
      • 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:3092
        • 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:2216

    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 ee9cef34f8df5161374e5059bc333d3c4c3aa27e5d288de61d1f7f94628cdbe0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 20KB
          • SHA256 3441806c7f22e9c02e72db7db1ffc3902ed0d1b70d821fa9f3bbbf4ffa4f78cd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_1uvtpl0f.wgt.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1uvtpl0f.wgt.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 72e071e78fca25470253a53697c6baf115b4a0121bcd760200dcbee482ce3794
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 81a692fdb5881323187cf096f9b8b8698731367e32065a84e3930718cca51501
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 47ee80f010894bd022344733f2e0e665046622e3414b241888068105b6bc5e78
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 0cc3616e219892027a26e3734b64d1ee5c0851462f196f4f9bc571dfc6f1f71a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 724B
          • SHA256 35b93b8bda13722018d6e4895b3db6a9d3bd09eacb52b721da0a15875ab28f0a
          • MD5 SHA1 SHA512 TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 bca84a54821e059b8a72dc956475ee7045521ca401d56b793ddcd27fb78bfca6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 5b8a1072b0e8397c066d5089c6f193508b8198a77d07e8f226fca1d3a6b5647b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          csrss.exe

          • Path C:\Windows\rss\csrss.exe
          • Size 9.1MB
          • SHA256 6b03bb79a0dc335e541567ae09f7cc689c10915a3f49aebacfb7301d1bc4ad4b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1920-127-0x0000000007E00000-0x0000000007E11000-memory.dmp

          memory/1920-129-0x00000000061B0000-0x00000000061C5000-memory.dmp

          memory/1920-107-0x00000000063E0000-0x0000000006737000-memory.dmp

          memory/1920-110-0x00000000068B0000-0x00000000068FC000-memory.dmp

          memory/1920-112-0x00000000709F0000-0x0000000070A3C000-memory.dmp

          memory/1920-113-0x0000000070B70000-0x0000000070EC7000-memory.dmp

          memory/1920-120-0x0000000007A60000-0x0000000007B04000-memory.dmp

          memory/1968-158-0x00000000709F0000-0x0000000070A3C000-memory.dmp

          memory/1968-168-0x0000000005610000-0x0000000005621000-memory.dmp

          memory/1968-167-0x0000000006F30000-0x0000000006FD4000-memory.dmp

          memory/1968-159-0x0000000070B70000-0x0000000070EC7000-memory.dmp

          memory/1968-169-0x0000000005AD0000-0x0000000005AE5000-memory.dmp

          memory/2100-176-0x00000000709F0000-0x0000000070A3C000-memory.dmp

          memory/2100-177-0x0000000070B70000-0x0000000070EC7000-memory.dmp

          memory/2216-220-0x00000000709F0000-0x0000000070A3C000-memory.dmp

          memory/2216-221-0x0000000070B70000-0x0000000070EC7000-memory.dmp

          memory/2216-228-0x00000000077C0000-0x00000000077D1000-memory.dmp

          memory/2216-234-0x0000000005C70000-0x0000000005C85000-memory.dmp

          memory/2344-211-0x0000000005F20000-0x0000000005F35000-memory.dmp

          memory/2344-200-0x00000000709F0000-0x0000000070A3C000-memory.dmp

          memory/2344-201-0x0000000070B70000-0x0000000070EC7000-memory.dmp

          memory/2996-72-0x0000000070C10000-0x0000000070F67000-memory.dmp

          memory/2996-71-0x0000000070A90000-0x0000000070ADC000-memory.dmp

          memory/3204-48-0x0000000005620000-0x0000000005977000-memory.dmp

          memory/3204-59-0x0000000006FA0000-0x0000000006FB1000-memory.dmp

          memory/3204-60-0x0000000006FF0000-0x0000000007005000-memory.dmp

          memory/3204-58-0x0000000006C90000-0x0000000006D34000-memory.dmp

          memory/3204-51-0x0000000070C10000-0x0000000070F67000-memory.dmp

          memory/3204-50-0x0000000070A90000-0x0000000070ADC000-memory.dmp

          memory/3204-49-0x0000000005AA0000-0x0000000005AEC000-memory.dmp

          memory/3260-86-0x0000000005660000-0x00000000059B7000-memory.dmp

          memory/3260-88-0x0000000070A90000-0x0000000070ADC000-memory.dmp

          memory/3260-89-0x0000000070C30000-0x0000000070F87000-memory.dmp

          memory/3704-185-0x00000000709F0000-0x0000000070A3C000-memory.dmp

          memory/3704-186-0x0000000070B70000-0x0000000070EC7000-memory.dmp

          memory/5084-131-0x00000000709F0000-0x0000000070A3C000-memory.dmp

          memory/5084-148-0x0000000005B50000-0x0000000005B65000-memory.dmp

          memory/5084-140-0x0000000007380000-0x0000000007391000-memory.dmp

          memory/5084-132-0x0000000070B70000-0x0000000070EC7000-memory.dmp

          memory/5084-139-0x00000000071B0000-0x0000000007254000-memory.dmp

          memory/5112-27-0x00000000053E0000-0x00000000053F0000-memory.dmp

          memory/5112-19-0x0000000070B90000-0x0000000070EE7000-memory.dmp

          memory/5112-34-0x0000000007D90000-0x0000000007E26000-memory.dmp

          memory/5112-35-0x0000000007CA0000-0x0000000007CB1000-memory.dmp

          memory/5112-36-0x0000000007CF0000-0x0000000007CFE000-memory.dmp

          memory/5112-31-0x0000000008280000-0x00000000088FA000-memory.dmp

          memory/5112-37-0x0000000007D00000-0x0000000007D15000-memory.dmp

          memory/5112-32-0x0000000007C40000-0x0000000007C5A000-memory.dmp

          memory/5112-30-0x0000000007B10000-0x0000000007BB4000-memory.dmp

          memory/5112-29-0x0000000007AF0000-0x0000000007B0E000-memory.dmp

          memory/5112-39-0x0000000007D70000-0x0000000007D78000-memory.dmp

          memory/5112-28-0x00000000053E0000-0x00000000053F0000-memory.dmp

          memory/5112-26-0x00000000053E0000-0x00000000053F0000-memory.dmp

          memory/5112-33-0x0000000007C80000-0x0000000007C8A000-memory.dmp

          memory/5112-18-0x0000000070980000-0x00000000709CC000-memory.dmp

          memory/5112-0-0x00000000053E0000-0x00000000053F0000-memory.dmp

          memory/5112-38-0x0000000007D50000-0x0000000007D6A000-memory.dmp

          memory/5112-17-0x0000000007AB0000-0x0000000007AE4000-memory.dmp

          memory/5112-16-0x000000007F1F0000-0x000000007F200000-memory.dmp

          memory/5112-15-0x0000000006BE0000-0x0000000006C26000-memory.dmp

          memory/5112-14-0x0000000006720000-0x000000000676C000-memory.dmp

          memory/5112-13-0x0000000006690000-0x00000000066AE000-memory.dmp

          memory/5112-12-0x0000000006170000-0x00000000064C7000-memory.dmp

          memory/5112-5-0x00000000060C0000-0x0000000006126000-memory.dmp

          memory/5112-4-0x0000000005970000-0x00000000059D6000-memory.dmp

          memory/5112-3-0x00000000058C0000-0x00000000058E2000-memory.dmp

          memory/5112-2-0x0000000005A20000-0x000000000604A000-memory.dmp

          memory/5112-1-0x0000000005230000-0x0000000005266000-memory.dmp