Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    02/06/2026, 10:24

General

  • Target
    tmpjiezv4qg.exe
  • Size 9.1MB
  • Sample260602-mfd7msaz8x
  • 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
  • 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\tmpjiezv4qg.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpjiezv4qg.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1260
    • 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:5924
    • C:\Users\Admin\AppData\Local\Temp\tmpjiezv4qg.exe
      "C:\Users\Admin\AppData\Local\Temp\tmpjiezv4qg.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:5132
      • 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:5400
      • 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:1820
        • 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:5824
      • 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:1812
      • 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:6016
      • 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:1620
        • 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:3024
        • 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:4308
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2932
          • 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:5772
          • 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:4884
          • 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:4492
          • 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:1188
    • 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:4732
      • 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:3300
      • 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:5728
        • 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:4556
    • 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:2216
      • 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:4900
      • 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:3440
        • 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:5316

    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 5813321c8b4796e37093d15b315a8209e97ce982dfb9d85356d2ee0e75376b14
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 20KB
          • SHA256 ea1500c27cffb216df9eacd39d5ffdc6feb3735a21ebfd79b9266c1974ed8834
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_lwchby53.fzm.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lwchby53.fzm.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 d9ce5a145869a2a98a2945de00afdca7d28a6f3b2daf89d061e7a21f0e575309
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 c4b9b5b73e5f779e3b30ed15827920a200d0ba280255b12052c8ab11896ccdd5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 99daecb7b55fb54a1bd19e9dad7f7530ec39575e6fe8a52b59da288b80b06fdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 8ba862308f156a341c3de07a9a16d51663679f39604253649e7b5eb4bf4591e9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 c72c08834007b893be220fff5b633e9732f332444c49df1da1e3008962747fa1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 0c909acd3fea7a82fbff75ad49edfd85413deefdd2cbb2fcd55e63e56c5610ba
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 568d7d309af42ee7e5ec561f24750ddd6abdf03f3bf8ba3acfa0537c24630f3e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          csrss.exe

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

          memory/1812-74-0x0000000071270000-0x00000000715C7000-memory.dmp

          memory/1812-73-0x0000000071020000-0x000000007106C000-memory.dmp

          memory/1812-70-0x0000000005DF0000-0x0000000006147000-memory.dmp

          memory/3024-138-0x0000000006300000-0x0000000006315000-memory.dmp

          memory/3024-128-0x0000000007770000-0x0000000007814000-memory.dmp

          memory/3024-112-0x0000000006A20000-0x0000000006A6C000-memory.dmp

          memory/3024-121-0x0000000071190000-0x00000000714E7000-memory.dmp

          memory/3024-108-0x0000000005F80000-0x00000000062D7000-memory.dmp

          memory/3024-120-0x00000000710B0000-0x00000000710FC000-memory.dmp

          memory/3024-129-0x0000000007AA0000-0x0000000007AB1000-memory.dmp

          memory/3300-131-0x0000000071190000-0x00000000714E7000-memory.dmp

          memory/3300-130-0x00000000710B0000-0x00000000710FC000-memory.dmp

          memory/4556-176-0x0000000071190000-0x00000000714E7000-memory.dmp

          memory/4556-175-0x00000000710B0000-0x00000000710FC000-memory.dmp

          memory/4884-199-0x00000000710B0000-0x00000000710FC000-memory.dmp

          memory/4884-200-0x0000000071190000-0x00000000714E7000-memory.dmp

          memory/4900-189-0x00000000710B0000-0x00000000710FC000-memory.dmp

          memory/4900-190-0x0000000071190000-0x00000000714E7000-memory.dmp

          memory/5316-218-0x0000000071190000-0x00000000714E7000-memory.dmp

          memory/5316-217-0x00000000710B0000-0x00000000710FC000-memory.dmp

          memory/5400-50-0x00000000066E0000-0x000000000672C000-memory.dmp

          memory/5400-51-0x0000000071020000-0x000000007106C000-memory.dmp

          memory/5400-52-0x00000000711C0000-0x0000000071517000-memory.dmp

          memory/5400-59-0x0000000007490000-0x0000000007534000-memory.dmp

          memory/5400-60-0x00000000077C0000-0x00000000077D1000-memory.dmp

          memory/5400-61-0x0000000007810000-0x0000000007825000-memory.dmp

          memory/5400-49-0x0000000005D90000-0x00000000060E7000-memory.dmp

          memory/5772-158-0x0000000007310000-0x00000000073B4000-memory.dmp

          memory/5772-150-0x00000000710B0000-0x00000000710FC000-memory.dmp

          memory/5772-166-0x0000000005A80000-0x0000000005A95000-memory.dmp

          memory/5772-159-0x00000000076C0000-0x00000000076D1000-memory.dmp

          memory/5772-151-0x0000000071190000-0x00000000714E7000-memory.dmp

          memory/5924-6-0x0000000006340000-0x00000000063A6000-memory.dmp

          memory/5924-16-0x0000000007A10000-0x0000000007A56000-memory.dmp

          memory/5924-19-0x0000000070F10000-0x0000000070F5C000-memory.dmp

          memory/5924-14-0x0000000006890000-0x00000000068AE000-memory.dmp

          memory/5924-13-0x00000000063B0000-0x0000000006707000-memory.dmp

          memory/5924-21-0x00000000034D0000-0x00000000034E0000-memory.dmp

          memory/5924-31-0x0000000007D20000-0x0000000007DC4000-memory.dmp

          memory/5924-30-0x0000000007D00000-0x0000000007D1E000-memory.dmp

          memory/5924-40-0x0000000007F50000-0x0000000007F58000-memory.dmp

          memory/5924-39-0x0000000007F60000-0x0000000007F7A000-memory.dmp

          memory/5924-38-0x0000000007F10000-0x0000000007F25000-memory.dmp

          memory/5924-0-0x00000000034D0000-0x00000000034E0000-memory.dmp

          memory/5924-17-0x000000007F1F0000-0x000000007F200000-memory.dmp

          memory/5924-18-0x0000000007CC0000-0x0000000007CF4000-memory.dmp

          memory/5924-23-0x00000000034D0000-0x00000000034E0000-memory.dmp

          memory/5924-15-0x00000000068E0000-0x000000000692C000-memory.dmp

          memory/5924-1-0x00000000033C0000-0x00000000033F6000-memory.dmp

          memory/5924-2-0x00000000034D0000-0x00000000034E0000-memory.dmp

          memory/5924-5-0x00000000062D0000-0x0000000006336000-memory.dmp

          memory/5924-37-0x0000000007F00000-0x0000000007F0E000-memory.dmp

          memory/5924-36-0x0000000007EB0000-0x0000000007EC1000-memory.dmp

          memory/5924-35-0x0000000007FA0000-0x0000000008036000-memory.dmp

          memory/5924-34-0x0000000007E90000-0x0000000007E9A000-memory.dmp

          memory/5924-4-0x0000000005AF0000-0x0000000005B12000-memory.dmp

          memory/5924-33-0x0000000007E50000-0x0000000007E6A000-memory.dmp

          memory/5924-32-0x0000000008490000-0x0000000008B0A000-memory.dmp

          memory/5924-3-0x0000000005BF0000-0x000000000621A000-memory.dmp

          memory/5924-20-0x0000000071090000-0x00000000713E7000-memory.dmp

          memory/5924-22-0x00000000034D0000-0x00000000034E0000-memory.dmp

          memory/6016-89-0x0000000071020000-0x000000007106C000-memory.dmp

          memory/6016-90-0x0000000071270000-0x00000000715C7000-memory.dmp