Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    02/06/2026, 10:25

General

  • Target
    tmp7ybsnp4h.exe
  • Size 9.1MB
  • Sample260602-mf9csacs6n
  • SHA256 6aff74b947b1221353d631fd11d218527f9613fd7735a6f13a706156fedf2bc5
  • 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\tmp7ybsnp4h.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp7ybsnp4h.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4812
    • 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:4828
    • C:\Users\Admin\AppData\Local\Temp\tmp7ybsnp4h.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp7ybsnp4h.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:6080
      • 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:6096
      • 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:412
        • 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:3232
      • 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:4300
      • 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:2872
      • 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:4208
        • 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:1068
        • 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:1448
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3516
          • 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:640
          • 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:2120
          • 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:5804
          • 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:5236
    • 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:5352
      • 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:3840
      • 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:2728
        • 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:3148
    • 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:4568
      • 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:5444
      • 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:2936
        • 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:2256

    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 c485090255365c45e20c88df1c46414b1ec21448acf488ccda9ee2e26a5b7a91
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 23KB
          • SHA256 523256c0cf1cf8b879ac22eb029627b6a4b5b148b91992bd1e87b4ffb1eb8da2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_ax0pini5.c23.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ax0pini5.c23.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 0e4845cd1c5ca5cff979c23ec5a0f070f1746c8ead7dfd080f133e61be918f29
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 21KB
          • SHA256 24792e2456febc80e30fbebb88593338c9545dc534f42b21669129591a06401f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 21KB
          • SHA256 9776c578055748e18660e486f07b7cfff08e4aed8cd024377774bf1ccf7d42e3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 21KB
          • SHA256 e0a8c8ab669a2c5db596a2fd034cf99233a1bab700bf8b39ac445f57f68dd7d7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 21KB
          • SHA256 9403dfb646082e50e629e8c643a382f51f99ef789412f537f8971264b37296bf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 21KB
          • SHA256 abaefed36d494d15402d9fbcf2e020bd5332e16c3640573c63714ccdaa098614
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 21KB
          • SHA256 29f5aecfec35f266e4ddda6c2f9011a4604ea0e7bd7236007ca0ad1d5bfcba8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          csrss.exe

          • Path C:\Windows\rss\csrss.exe
          • Size 9.1MB
          • SHA256 6aff74b947b1221353d631fd11d218527f9613fd7735a6f13a706156fedf2bc5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/640-156-0x00000000707D0000-0x0000000070B27000-memory.dmp

          memory/640-155-0x0000000070520000-0x000000007056C000-memory.dmp

          memory/640-164-0x00000000078E0000-0x0000000007983000-memory.dmp

          memory/1068-115-0x0000000006EE0000-0x0000000006F2C000-memory.dmp

          memory/1068-133-0x0000000007C20000-0x0000000007CC3000-memory.dmp

          memory/1068-124-0x0000000070520000-0x000000007056C000-memory.dmp

          memory/1068-125-0x00000000707D0000-0x0000000070B27000-memory.dmp

          memory/1068-112-0x0000000006360000-0x00000000066B7000-memory.dmp

          memory/2120-210-0x0000000070520000-0x000000007056C000-memory.dmp

          memory/2120-211-0x00000000707D0000-0x0000000070B27000-memory.dmp

          memory/2256-228-0x0000000070520000-0x000000007056C000-memory.dmp

          memory/2256-229-0x00000000707D0000-0x0000000070B27000-memory.dmp

          memory/2872-91-0x0000000070950000-0x0000000070CA7000-memory.dmp

          memory/2872-90-0x00000000705F0000-0x000000007063C000-memory.dmp

          memory/3148-181-0x0000000070520000-0x000000007056C000-memory.dmp

          memory/3148-182-0x00000000707D0000-0x0000000070B27000-memory.dmp

          memory/3840-134-0x0000000070520000-0x000000007056C000-memory.dmp

          memory/3840-135-0x00000000707D0000-0x0000000070B27000-memory.dmp

          memory/4300-72-0x00000000705F0000-0x000000007063C000-memory.dmp

          memory/4300-70-0x0000000005840000-0x0000000005B97000-memory.dmp

          memory/4300-73-0x0000000070770000-0x0000000070AC7000-memory.dmp

          memory/4828-37-0x0000000007840000-0x000000000784A000-memory.dmp

          memory/4828-22-0x00000000076E0000-0x0000000007712000-memory.dmp

          memory/4828-1-0x0000000004B60000-0x0000000004B96000-memory.dmp

          memory/4828-2-0x0000000002760000-0x0000000002770000-memory.dmp

          memory/4828-38-0x00000000078F0000-0x0000000007986000-memory.dmp

          memory/4828-3-0x0000000005270000-0x000000000593A000-memory.dmp

          memory/4828-36-0x0000000007760000-0x0000000007803000-memory.dmp

          memory/4828-35-0x0000000007740000-0x000000000775E000-memory.dmp

          memory/4828-32-0x0000000002760000-0x0000000002770000-memory.dmp

          memory/4828-33-0x0000000002760000-0x0000000002770000-memory.dmp

          memory/4828-34-0x0000000002760000-0x0000000002770000-memory.dmp

          memory/4828-24-0x0000000070840000-0x0000000070B97000-memory.dmp

          memory/4828-23-0x00000000704E0000-0x000000007052C000-memory.dmp

          memory/4828-0-0x0000000002760000-0x0000000002770000-memory.dmp

          memory/4828-4-0x0000000005110000-0x0000000005132000-memory.dmp

          memory/4828-5-0x0000000005AB0000-0x0000000005B16000-memory.dmp

          memory/4828-21-0x000000007F850000-0x000000007F860000-memory.dmp

          memory/4828-20-0x0000000007530000-0x000000000754A000-memory.dmp

          memory/4828-19-0x0000000007B90000-0x000000000820A000-memory.dmp

          memory/4828-18-0x0000000007490000-0x0000000007506000-memory.dmp

          memory/4828-17-0x0000000006730000-0x0000000006774000-memory.dmp

          memory/4828-16-0x0000000006180000-0x00000000061CC000-memory.dmp

          memory/4828-15-0x0000000006130000-0x000000000614E000-memory.dmp

          memory/4828-6-0x0000000005B20000-0x0000000005B86000-memory.dmp

          memory/4828-14-0x0000000005B90000-0x0000000005EE7000-memory.dmp

          memory/5444-199-0x00000000707D0000-0x0000000070B27000-memory.dmp

          memory/5444-198-0x0000000070520000-0x000000007056C000-memory.dmp

          memory/6096-50-0x00000000705F0000-0x000000007063C000-memory.dmp

          memory/6096-51-0x0000000070950000-0x0000000070CA7000-memory.dmp

          memory/6096-59-0x00000000070B0000-0x0000000007153000-memory.dmp

          memory/6096-48-0x0000000005850000-0x0000000005BA7000-memory.dmp

          memory/6096-49-0x0000000005ED0000-0x0000000005F1C000-memory.dmp