Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    22/05/2026, 21:58

General

  • Target
    tmprgo6xq4g.exe
  • Size 9.1MB
  • Sample260522-1vxjeshy4x
  • SHA256 d787ebd2a6568778e6715f1cd0f28ef46dd5f2e81ecd67347ab4f667d12605a1
  • 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
  • Windows security bypass 2 TTPs 7 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 6 IoCs
  • Windows security modification 2 TTPs 7 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 64 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\tmprgo6xq4g.exe
    "C:\Users\Admin\AppData\Local\Temp\tmprgo6xq4g.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1320
    • 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:1676
    • C:\Users\Admin\AppData\Local\Temp\tmprgo6xq4g.exe
      "C:\Users\Admin\AppData\Local\Temp\tmprgo6xq4g.exe"
      2⤵
      • Windows security bypass
      • Windows security modification
      • 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:772
      • 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:4784
      • 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:4668
        • 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:220
      • 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:3420
      • 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:1196
      • 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 WriteProcessMemory
        PID:2040
        • 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:4652
        • 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:4988
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3344
          • 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
            PID:4948
          • 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
            PID:4740
          • 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:2464
          • 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:4932
    • 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 WriteProcessMemory
      PID:4336
      • 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
        PID:1856
      • 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:2064
        • 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
          PID:2960
    • C:\Windows\System32\Conhost.exe
      \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
      1⤵
        PID:4784
      • 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 WriteProcessMemory
        PID:3048
        • 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
          PID:4164
        • 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:3068
          • 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
            PID:4628

      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 b0f9cae7ea248a3bc31f948a1efe46a49acce56c3070eb2585db17839175be64
            • MD5 SHA1 SHA512 TLSH

            StartupProfileData-Interactive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 23KB
            • SHA256 d61fe918d3dc8504f5d46c0c0806819fab562bd792e7b3652c1b2048b232111b
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-Interactive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 23KB
            • SHA256 cacd25e8749ac1f42b0e743b59d91270f72f106656b4f5f5ccf98c2c6bdc9159
            • MD5 SHA1 SHA512 SSDEEP TLSH

            __PSScriptPolicyTest_3l2nfq0m.1zr.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3l2nfq0m.1zr.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 883481fe331cb89fb6061e76b43acd4dd638c16f499b10088b261036c6d0547b
            • MD5 SHA1 SHA512 TLSH

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 21KB
            • SHA256 cfe838443876e305acf13026d384ffef731e82836806354a925b3ab0e90469d3
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 21KB
            • SHA256 8ba9e0e6b5d8db574503828b164d4b733ded659eb301e40dae17fd0ef4253a5a
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 21KB
            • SHA256 3e3b8900c421f08845186f5b7895b574da6eea82fa0f7fd1fa7d6da246e3f293
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 21KB
            • SHA256 5b63272be527a6881c4c44257fb1de66c6e6d7c55c4b36ba85b72e7518a05b43
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 21KB
            • SHA256 892d52a64a8d2edc2a04cf8512d655d81c2f63c2c19568e18e15bb09e5885125
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 21KB
            • SHA256 663de0a338691e1f2a2c3b2afc48fe0676141094daa878970539a050fae224f3
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 21KB
            • SHA256 3d8be518161885842fdb4d907306ffea3dce978c65e9ad9ea9fa4ec9d9dcad99
            • MD5 SHA1 SHA512 SSDEEP TLSH

            csrss.exe

            • Path C:\Windows\rss\csrss.exe
            • Size 9.1MB
            • SHA256 d787ebd2a6568778e6715f1cd0f28ef46dd5f2e81ecd67347ab4f667d12605a1
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1196-89-0x0000000071060000-0x00000000713B7000-memory.dmp

            memory/1196-88-0x0000000070D00000-0x0000000070D4C000-memory.dmp

            memory/1676-16-0x0000000006290000-0x00000000062D4000-memory.dmp

            memory/1676-20-0x000000007EF90000-0x000000007EFA0000-memory.dmp

            memory/1676-27-0x00000000022C0000-0x00000000022D0000-memory.dmp

            memory/1676-25-0x00000000022C0000-0x00000000022D0000-memory.dmp

            memory/1676-24-0x00000000022C0000-0x00000000022D0000-memory.dmp

            memory/1676-36-0x00000000073C0000-0x00000000073CA000-memory.dmp

            memory/1676-23-0x0000000070D70000-0x00000000710C7000-memory.dmp

            memory/1676-21-0x0000000007260000-0x0000000007292000-memory.dmp

            memory/1676-37-0x0000000007470000-0x0000000007506000-memory.dmp

            memory/1676-35-0x00000000072E0000-0x0000000007383000-memory.dmp

            memory/1676-22-0x0000000070BF0000-0x0000000070C3C000-memory.dmp

            memory/1676-34-0x00000000072C0000-0x00000000072DE000-memory.dmp

            memory/1676-19-0x00000000070B0000-0x00000000070CA000-memory.dmp

            memory/1676-18-0x0000000007710000-0x0000000007D8A000-memory.dmp

            memory/1676-17-0x0000000007010000-0x0000000007086000-memory.dmp

            memory/1676-15-0x0000000005D70000-0x0000000005DBC000-memory.dmp

            memory/1676-14-0x0000000005CC0000-0x0000000005CDE000-memory.dmp

            memory/1676-0-0x00000000022C0000-0x00000000022D0000-memory.dmp

            memory/1676-13-0x0000000005840000-0x0000000005B97000-memory.dmp

            memory/1676-4-0x0000000004F30000-0x0000000004F96000-memory.dmp

            memory/1676-5-0x00000000056D0000-0x0000000005736000-memory.dmp

            memory/1676-3-0x0000000004D90000-0x0000000004DB2000-memory.dmp

            memory/1676-2-0x0000000005000000-0x00000000056CA000-memory.dmp

            memory/1676-1-0x00000000022D0000-0x0000000002306000-memory.dmp

            memory/1856-142-0x0000000007400000-0x00000000074A3000-memory.dmp

            memory/1856-134-0x0000000070FC0000-0x0000000071317000-memory.dmp

            memory/1856-133-0x0000000070C60000-0x0000000070CAC000-memory.dmp

            memory/2960-189-0x0000000070C60000-0x0000000070CAC000-memory.dmp

            memory/2960-190-0x0000000070FC0000-0x0000000071317000-memory.dmp

            memory/3420-71-0x0000000071060000-0x00000000713B7000-memory.dmp

            memory/3420-70-0x0000000070D00000-0x0000000070D4C000-memory.dmp

            memory/4164-179-0x0000000070C60000-0x0000000070CAC000-memory.dmp

            memory/4164-180-0x0000000070FC0000-0x0000000071317000-memory.dmp

            memory/4628-226-0x0000000070C60000-0x0000000070CAC000-memory.dmp

            memory/4628-227-0x0000000070FC0000-0x0000000071317000-memory.dmp

            memory/4652-102-0x00000000055A0000-0x00000000058F7000-memory.dmp

            memory/4652-113-0x0000000070C60000-0x0000000070CAC000-memory.dmp

            memory/4652-111-0x0000000006160000-0x00000000061AC000-memory.dmp

            memory/4652-115-0x0000000070FC0000-0x0000000071317000-memory.dmp

            memory/4652-123-0x0000000006E70000-0x0000000006F13000-memory.dmp

            memory/4740-217-0x0000000070C60000-0x0000000070CAC000-memory.dmp

            memory/4740-218-0x0000000070FC0000-0x0000000071317000-memory.dmp

            memory/4784-49-0x0000000070D00000-0x0000000070D4C000-memory.dmp

            memory/4784-58-0x0000000007750000-0x00000000077F3000-memory.dmp

            memory/4784-50-0x0000000071060000-0x00000000713B7000-memory.dmp

            memory/4784-48-0x0000000006AA0000-0x0000000006AEC000-memory.dmp

            memory/4784-47-0x0000000005FA0000-0x00000000062F7000-memory.dmp

            memory/4948-154-0x0000000070FC0000-0x0000000071317000-memory.dmp

            memory/4948-163-0x00000000079B0000-0x0000000007A53000-memory.dmp

            memory/4948-153-0x0000000070C60000-0x0000000070CAC000-memory.dmp