Analysis

  • max time kernel
    149s
  • 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
    22/05/2026, 21:32

General

  • Target
    tmpycfygk05.exe
  • Size 9.1MB
  • Sample260522-1d2rtahw5v
  • SHA256 ded8b2fd7871bfdde3ebc26b9f38068ff1a468d7789e3a7b522d42dbda6e971e
  • 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\tmpycfygk05.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpycfygk05.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:868
    • 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:4836
    • C:\Users\Admin\AppData\Local\Temp\tmpycfygk05.exe
      "C:\Users\Admin\AppData\Local\Temp\tmpycfygk05.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:3352
      • 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:4408
      • 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:3104
        • 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:4512
      • 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:1088
      • 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:4152
      • 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:888
        • 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:2428
        • 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:2980
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3320
          • 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:\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:3544
          • 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:3132
          • 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:820
    • 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:3924
      • 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:1360
      • 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:2900
        • 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:4440
    • 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:4076
      • 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:5100
      • 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:4600
        • 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:2984
    • C:\Windows\System32\WaaSMedicAgent.exe
      C:\Windows\System32\WaaSMedicAgent.exe ddd0f8bdc1fa35d640c423e07d7cbca8 nUzHdlfPFEqKhdnzZAi00g.0.1.0.0.0
      1⤵
        PID:4716

      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 c580066a21400e0d4e1caa900111c87a5cc635b37aacc322e8425e9aec1f4ffa
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-Interactive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 21KB
            • SHA256 46e627bd5be20115c81f298813be57cc63611ca8e6a245f72e984c4c504ab829
            • MD5 SHA1 SHA512 SSDEEP TLSH

            __PSScriptPolicyTest_1yrof0pr.uaw.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1yrof0pr.uaw.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 6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
            • MD5 SHA1 SHA512 TLSH

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 19KB
            • SHA256 8865e1fd351732e078f09d60c8a3698b95074a84a25fce49f597db6cf1a05e10
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 19KB
            • SHA256 6c6f1e8e560a4581219980db4beb69368c278c38ad2832e943975a02daab6961
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 19KB
            • SHA256 dda61a956fb28bd37537eab677e62d8acd87ad11146f2a05cf602e40cc566f06
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 19KB
            • SHA256 4996cd4a179cdaff71df3c92cac81fe2395b302564ade289046e071466f2fa08
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 19KB
            • SHA256 5519ef01dae299ccdbbcb1e80bc0cd70f6824235eaff00d8ac59ca0d18ae543b
            • MD5 SHA1 SHA512 SSDEEP TLSH

            StartupProfileData-Interactive

            • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
            • Size 19KB
            • SHA256 27f9f0e5e89225d33d15acfc8ca986f5561f4df36789928a47218cc63d33a964
            • MD5 SHA1 SHA512 SSDEEP TLSH

            csrss.exe

            • Path C:\Windows\rss\csrss.exe
            • Size 9.1MB
            • SHA256 ded8b2fd7871bfdde3ebc26b9f38068ff1a468d7789e3a7b522d42dbda6e971e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1088-79-0x0000000070670000-0x00000000709C4000-memory.dmp

            memory/1088-78-0x00000000704F0000-0x000000007053C000-memory.dmp

            memory/1360-142-0x0000000071C20000-0x0000000071C6C000-memory.dmp

            memory/1360-143-0x0000000070400000-0x0000000070754000-memory.dmp

            memory/2428-141-0x0000000005CB0000-0x0000000005CC1000-memory.dmp

            memory/2428-151-0x0000000005CF0000-0x0000000005D04000-memory.dmp

            memory/2428-121-0x00000000067E0000-0x000000000682C000-memory.dmp

            memory/2428-119-0x0000000005DC0000-0x0000000006114000-memory.dmp

            memory/2428-132-0x0000000070400000-0x0000000070754000-memory.dmp

            memory/2428-140-0x00000000074C0000-0x0000000007563000-memory.dmp

            memory/2428-131-0x0000000071C20000-0x0000000071C6C000-memory.dmp

            memory/2984-252-0x0000000070440000-0x000000007048C000-memory.dmp

            memory/2984-261-0x00000000071B0000-0x0000000007253000-memory.dmp

            memory/2984-253-0x0000000070AF0000-0x0000000070E44000-memory.dmp

            memory/2984-246-0x0000000005FE0000-0x000000000602C000-memory.dmp

            memory/2984-262-0x00000000074E0000-0x00000000074F1000-memory.dmp

            memory/2984-263-0x0000000005D80000-0x0000000005D94000-memory.dmp

            memory/3544-224-0x0000000070280000-0x00000000702CC000-memory.dmp

            memory/3544-235-0x00000000062C0000-0x00000000062D4000-memory.dmp

            memory/3544-225-0x0000000070AF0000-0x0000000070E44000-memory.dmp

            memory/4152-97-0x00000000704F0000-0x000000007053C000-memory.dmp

            memory/4152-98-0x0000000070C80000-0x0000000070FD4000-memory.dmp

            memory/4152-88-0x0000000005820000-0x0000000005B74000-memory.dmp

            memory/4408-54-0x00000000066D0000-0x000000000671C000-memory.dmp

            memory/4408-55-0x00000000704F0000-0x000000007053C000-memory.dmp

            memory/4408-56-0x0000000070670000-0x00000000709C4000-memory.dmp

            memory/4408-64-0x00000000073B0000-0x0000000007453000-memory.dmp

            memory/4408-65-0x00000000076D0000-0x00000000076E1000-memory.dmp

            memory/4408-66-0x0000000007720000-0x0000000007734000-memory.dmp

            memory/4408-53-0x0000000005C60000-0x0000000005FB4000-memory.dmp

            memory/4440-195-0x0000000070AF0000-0x0000000070E44000-memory.dmp

            memory/4440-214-0x0000000005A10000-0x0000000005A24000-memory.dmp

            memory/4440-211-0x00000000059D0000-0x00000000059E1000-memory.dmp

            memory/4440-203-0x00000000072A0000-0x0000000007343000-memory.dmp

            memory/4440-194-0x0000000070280000-0x00000000702CC000-memory.dmp

            memory/4716-166-0x0000000070280000-0x00000000702CC000-memory.dmp

            memory/4716-155-0x0000000005D10000-0x0000000006064000-memory.dmp

            memory/4716-191-0x00000000062A0000-0x00000000062B4000-memory.dmp

            memory/4716-183-0x0000000007A50000-0x0000000007A61000-memory.dmp

            memory/4716-175-0x00000000076E0000-0x0000000007783000-memory.dmp

            memory/4716-167-0x0000000070AF0000-0x0000000070E44000-memory.dmp

            memory/4716-164-0x0000000006630000-0x000000000667C000-memory.dmp

            memory/4836-33-0x0000000003130000-0x0000000003140000-memory.dmp

            memory/4836-22-0x0000000007CE0000-0x0000000007D12000-memory.dmp

            memory/4836-36-0x0000000007D40000-0x0000000007DE3000-memory.dmp

            memory/4836-23-0x00000000703F0000-0x000000007043C000-memory.dmp

            memory/4836-37-0x0000000007E30000-0x0000000007E3A000-memory.dmp

            memory/4836-30-0x0000000003130000-0x0000000003140000-memory.dmp

            memory/4836-38-0x0000000007F40000-0x0000000007FD6000-memory.dmp

            memory/4836-39-0x0000000007E40000-0x0000000007E51000-memory.dmp

            memory/4836-0-0x0000000003130000-0x0000000003140000-memory.dmp

            memory/4836-40-0x0000000007E80000-0x0000000007E8E000-memory.dmp

            memory/4836-41-0x0000000007EA0000-0x0000000007EB4000-memory.dmp

            memory/4836-42-0x0000000007EE0000-0x0000000007EFA000-memory.dmp

            memory/4836-43-0x0000000007ED0000-0x0000000007ED8000-memory.dmp

            memory/4836-34-0x0000000003130000-0x0000000003140000-memory.dmp

            memory/4836-24-0x00000000709A0000-0x0000000070CF4000-memory.dmp

            memory/4836-35-0x0000000007D20000-0x0000000007D3E000-memory.dmp

            memory/4836-21-0x000000007FD50000-0x000000007FD60000-memory.dmp

            memory/4836-20-0x0000000007B30000-0x0000000007B4A000-memory.dmp

            memory/4836-1-0x00000000051B0000-0x00000000051E6000-memory.dmp

            memory/4836-2-0x0000000003130000-0x0000000003140000-memory.dmp

            memory/4836-19-0x0000000008190000-0x000000000880A000-memory.dmp

            memory/4836-18-0x0000000007A90000-0x0000000007B06000-memory.dmp

            memory/4836-17-0x0000000006CB0000-0x0000000006CF4000-memory.dmp

            memory/4836-16-0x00000000067A0000-0x00000000067EC000-memory.dmp

            memory/4836-15-0x0000000006760000-0x000000000677E000-memory.dmp

            memory/4836-14-0x0000000006120000-0x0000000006474000-memory.dmp

            memory/4836-6-0x0000000006030000-0x0000000006096000-memory.dmp

            memory/4836-5-0x0000000005FC0000-0x0000000006026000-memory.dmp

            memory/4836-4-0x0000000005790000-0x00000000057B2000-memory.dmp

            memory/4836-3-0x0000000005820000-0x0000000005E48000-memory.dmp

            memory/5100-215-0x0000000070AF0000-0x0000000070E44000-memory.dmp

            memory/5100-213-0x0000000070280000-0x00000000702CC000-memory.dmp