Analysis

  • max time kernel
    27s
  • 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
    02/06/2026, 10:26

General

  • Target
    tmpnpubrevm.exe
  • Size 4.1MB
  • Sample260602-mg2dkacs6p
  • SHA256 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba payload 22 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 6 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 16 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 33 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of WriteProcessMemory 13 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\tmpnpubrevm.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpnpubrevm.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2360
    • 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:4864
    • C:\Users\Admin\AppData\Local\Temp\tmpnpubrevm.exe
      "C:\Users\Admin\AppData\Local\Temp\tmpnpubrevm.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:352
      • 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:1904
      • 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:5108
        • 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:1056
      • 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:4376
      • 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:4808
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3772
        • 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:4660
        • 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:4792
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1748
          • 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:4536
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            PID:1044
          • 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⤵
              PID:3164
            • 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:2044
      • 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:4560
        • 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:4552
        • 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:1432
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:500
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        1⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3508
        • 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:2220
        • C:\Windows\rss\csrss.exe
          "C:\Windows\rss\csrss.exe"
          2⤵
            PID:2144
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              powershell -nologo -noprofile
              3⤵
              • Command and Scripting Interpreter: PowerShell
              PID:2388

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              StartupProfileData-Interactive

              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
              • Size 20KB
              • SHA256 d345bc87a3abdfd86d33d83048352482b759ec1042519d6a8e78b36ca3a83eaa
              • MD5 SHA1 SHA512 SSDEEP TLSH

              StartupProfileData-Interactive

              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
              • Size 20KB
              • SHA256 9c0640d03de9874ca95ee3fc76842c162fdcf073eb98cfa479b80372dc65e04e
              • MD5 SHA1 SHA512 SSDEEP TLSH

              __PSScriptPolicyTest_1z1rva0k.yad.ps1

              • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1z1rva0k.yad.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 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
              • MD5 SHA1 SHA512 TLSH

              StartupProfileData-Interactive

              • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
              • Size 19KB
              • SHA256 d0891eed147d145dd7122f9c406cb1de4fd2bfa56e1697c098be18e4f46ae495
              • MD5 SHA1 SHA512 SSDEEP TLSH

              StartupProfileData-Interactive

              • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
              • Size 19KB
              • SHA256 6a0b6bdc1f3d4e429cd0f7ca6f7d26900c2a3ed648dd83f1340ed91a9a866483
              • MD5 SHA1 SHA512 SSDEEP TLSH

              StartupProfileData-Interactive

              • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
              • Size 19KB
              • SHA256 5bc2a26664746343f700756c329d72df6890bacb54a37c892f11da70ec83c901
              • MD5 SHA1 SHA512 SSDEEP TLSH

              StartupProfileData-Interactive

              • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
              • Size 19KB
              • SHA256 f74fd86d221f63c387301c90f15ec2e5eae5a6d53b3b1ba9536209b52dd83b6d
              • MD5 SHA1 SHA512 SSDEEP TLSH

              StartupProfileData-Interactive

              • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
              • Size 19KB
              • SHA256 67460af1739e7c6f10c252078c28f61ad41ffd020c008c027763f62861834757
              • MD5 SHA1 SHA512 SSDEEP TLSH

              StartupProfileData-Interactive

              • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
              • Size 19KB
              • SHA256 268ae0093d65309f7d0d1250c788e0f2621b07d478704600418a1e21ee87a91d
              • MD5 SHA1 SHA512 SSDEEP TLSH

              csrss.exe

              • Path C:\Windows\rss\csrss.exe
              • Size 4.1MB
              • SHA256 27f43c0cba4d8813a3c93021f76938916e4556a0c0806e48f4574a412df5c303
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/352-196-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/352-97-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/500-187-0x0000000070B70000-0x0000000070BBC000-memory.dmp

              memory/500-188-0x0000000070590000-0x00000000708E7000-memory.dmp

              memory/500-211-0x0000000006430000-0x0000000006445000-memory.dmp

              memory/1044-216-0x0000000070590000-0x00000000708E7000-memory.dmp

              memory/1044-215-0x0000000070B70000-0x0000000070BBC000-memory.dmp

              memory/1432-229-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/1904-66-0x00000000075A0000-0x0000000007644000-memory.dmp

              memory/1904-68-0x0000000007940000-0x0000000007955000-memory.dmp

              memory/1904-67-0x00000000078F0000-0x0000000007901000-memory.dmp

              memory/1904-50-0x0000000005E20000-0x0000000006177000-memory.dmp

              memory/1904-58-0x0000000070690000-0x00000000706DC000-memory.dmp

              memory/1904-59-0x00000000708E0000-0x0000000070C37000-memory.dmp

              memory/1904-57-0x0000000006400000-0x000000000644C000-memory.dmp

              memory/2144-248-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/2144-263-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/2220-198-0x0000000070590000-0x00000000708E7000-memory.dmp

              memory/2220-197-0x0000000070B70000-0x0000000070BBC000-memory.dmp

              memory/2360-2-0x00000000050D0000-0x00000000059BB000-memory.dmp

              memory/2360-48-0x00000000050D0000-0x00000000059BB000-memory.dmp

              memory/2360-47-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/2360-1-0x0000000004CD0000-0x00000000050CE000-memory.dmp

              memory/2360-46-0x0000000004CD0000-0x00000000050CE000-memory.dmp

              memory/2388-261-0x0000000005B20000-0x0000000005B35000-memory.dmp

              memory/2388-240-0x0000000005D60000-0x00000000060B7000-memory.dmp

              memory/2388-243-0x0000000006300000-0x000000000634C000-memory.dmp

              memory/2388-251-0x00000000705F0000-0x000000007063C000-memory.dmp

              memory/2388-252-0x0000000070770000-0x0000000070AC7000-memory.dmp

              memory/2388-259-0x00000000074F0000-0x0000000007594000-memory.dmp

              memory/2388-260-0x0000000007880000-0x0000000007891000-memory.dmp

              memory/3508-245-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/3772-295-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/3772-280-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/3772-213-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/3772-270-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/3772-265-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/3772-275-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/3772-315-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/3772-310-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/3772-285-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/3772-290-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/3772-246-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/3772-300-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/3772-305-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/4376-80-0x0000000070690000-0x00000000706DC000-memory.dmp

              memory/4376-78-0x0000000006250000-0x00000000065A7000-memory.dmp

              memory/4376-81-0x0000000070810000-0x0000000070B67000-memory.dmp

              memory/4536-171-0x0000000007610000-0x00000000076B4000-memory.dmp

              memory/4536-173-0x0000000005DD0000-0x0000000005DE5000-memory.dmp

              memory/4536-163-0x0000000070B70000-0x0000000070BBC000-memory.dmp

              memory/4536-164-0x0000000070590000-0x00000000708E7000-memory.dmp

              memory/4552-142-0x0000000070590000-0x00000000708E7000-memory.dmp

              memory/4552-151-0x0000000005960000-0x0000000005975000-memory.dmp

              memory/4552-141-0x0000000070B70000-0x0000000070BBC000-memory.dmp

              memory/4560-225-0x0000000000400000-0x0000000002F2E000-memory.dmp

              memory/4660-120-0x0000000006030000-0x0000000006387000-memory.dmp

              memory/4660-140-0x0000000007AB0000-0x0000000007AC1000-memory.dmp

              memory/4660-132-0x0000000070590000-0x00000000708E7000-memory.dmp

              memory/4660-123-0x0000000006530000-0x000000000657C000-memory.dmp

              memory/4660-131-0x0000000070B70000-0x0000000070BBC000-memory.dmp

              memory/4660-149-0x0000000005F90000-0x0000000005FA5000-memory.dmp

              memory/4660-139-0x0000000007730000-0x00000000077D4000-memory.dmp

              memory/4808-98-0x0000000070690000-0x00000000706DC000-memory.dmp

              memory/4808-99-0x00000000708A0000-0x0000000070BF7000-memory.dmp

              memory/4808-94-0x00000000063F0000-0x0000000006747000-memory.dmp

              memory/4864-7-0x0000000004F10000-0x0000000004F32000-memory.dmp

              memory/4864-8-0x0000000005610000-0x0000000005676000-memory.dmp

              memory/4864-32-0x0000000002760000-0x0000000002770000-memory.dmp

              memory/4864-5-0x0000000002760000-0x0000000002770000-memory.dmp

              memory/4864-3-0x0000000002760000-0x0000000002770000-memory.dmp

              memory/4864-30-0x0000000007190000-0x00000000071AE000-memory.dmp

              memory/4864-6-0x0000000004F70000-0x000000000559A000-memory.dmp

              memory/4864-33-0x0000000002760000-0x0000000002770000-memory.dmp

              memory/4864-17-0x0000000005CA0000-0x0000000005CBE000-memory.dmp

              memory/4864-36-0x00000000072E0000-0x00000000072FA000-memory.dmp

              memory/4864-18-0x0000000005CF0000-0x0000000005D3C000-memory.dmp

              memory/4864-34-0x0000000002760000-0x0000000002770000-memory.dmp

              memory/4864-35-0x0000000007920000-0x0000000007F9A000-memory.dmp

              memory/4864-19-0x0000000006210000-0x0000000006256000-memory.dmp

              memory/4864-20-0x000000007F340000-0x000000007F350000-memory.dmp

              memory/4864-4-0x0000000002800000-0x0000000002836000-memory.dmp

              memory/4864-9-0x0000000005680000-0x00000000056E6000-memory.dmp

              memory/4864-31-0x00000000071B0000-0x0000000007254000-memory.dmp

              memory/4864-21-0x0000000007150000-0x0000000007184000-memory.dmp

              memory/4864-16-0x0000000005770000-0x0000000005AC7000-memory.dmp

              memory/4864-22-0x0000000070580000-0x00000000705CC000-memory.dmp

              memory/4864-23-0x0000000070790000-0x0000000070AE7000-memory.dmp

              memory/4864-37-0x0000000007320000-0x000000000732A000-memory.dmp

              memory/4864-38-0x0000000007430000-0x00000000074C6000-memory.dmp

              memory/4864-39-0x0000000007340000-0x0000000007351000-memory.dmp

              memory/4864-40-0x0000000007390000-0x000000000739E000-memory.dmp

              memory/4864-41-0x00000000073A0000-0x00000000073B5000-memory.dmp

              memory/4864-42-0x00000000073F0000-0x000000000740A000-memory.dmp

              memory/4864-43-0x0000000007410000-0x0000000007418000-memory.dmp