Analysis

  • max time kernel
    299s
  • max time network
    300s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    16/05/2024, 23:26

General

  • Target
    74ea64addfd2c94f94ba572ae504cc18a66b96b8f74c5c437dc4b48033ab37e3.exe
  • Size 4.1MB
  • Sample240516-3ethyaeb6s
  • SHA256 74ea64addfd2c94f94ba572ae504cc18a66b96b8f74c5c437dc4b48033ab37e3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 32 IoCs
  • Windows security bypass 2 TTPs 7 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 4 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 7 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 4 IoCs
  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

    Using powershell.exe command.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of WriteProcessMemory 36 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\74ea64addfd2c94f94ba572ae504cc18a66b96b8f74c5c437dc4b48033ab37e3.exe
    "C:\Users\Admin\AppData\Local\Temp\74ea64addfd2c94f94ba572ae504cc18a66b96b8f74c5c437dc4b48033ab37e3.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2772
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1676
    • C:\Users\Admin\AppData\Local\Temp\74ea64addfd2c94f94ba572ae504cc18a66b96b8f74c5c437dc4b48033ab37e3.exe
      "C:\Users\Admin\AppData\Local\Temp\74ea64addfd2c94f94ba572ae504cc18a66b96b8f74c5c437dc4b48033ab37e3.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
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2120
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4224
      • 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:1060
        • 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
          • Modifies data under HKEY_USERS
          PID:988
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3668
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4288
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4888
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Command and Scripting Interpreter: PowerShell
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3904
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Creates scheduled task(s)
          PID:4504
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4764
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1972
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4776
          • 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:3988
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
            4⤵
            • Creates scheduled task(s)
            PID:356
          • C:\Windows\windefender.exe
            "C:\Windows\windefender.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4700
            • C:\Windows\SysWOW64\cmd.exe
              cmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:2268
              • C:\Windows\SysWOW64\sc.exe
                sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
                6⤵
                • Launches sc.exe
                • Suspicious use of AdjustPrivilegeToken
                PID:292
    • C:\Windows\windefender.exe
      C:\Windows\windefender.exe
      1⤵
      • Executes dropped EXE
      • Modifies data under HKEY_USERS
      PID:1440

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          __PSScriptPolicyTest_xbxhkei4.3nr.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xbxhkei4.3nr.ps1
          • Size 1B
          • SHA256 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
          • MD5 SHA1 SHA512

          injector.exe

          • Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
          • Size 281KB
          • SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
          • MD5 SHA1 SHA512 SSDEEP

          powershell.exe.log

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
          • Size 2KB
          • SHA256 1bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05
          • MD5 SHA1 SHA512

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 18KB
          • SHA256 559fb657e382f36ebfb1d59eb45f22ceaec7ae5cd8e8079b4a4136c0b94f4d5e
          • MD5 SHA1 SHA512 SSDEEP

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 18KB
          • SHA256 ce8b5813d5cc0398a246217ee37011bb0f81da012a151e4bb10d42cf8ceefb3f
          • MD5 SHA1 SHA512 SSDEEP

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 18KB
          • SHA256 0dc93225c1b931fd32c580fb600cb0700224cb391e7d9b301e62107762e38431
          • MD5 SHA1 SHA512 SSDEEP

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 18KB
          • SHA256 7e6fe1d0b4d01e2c3430e0c3a8c98db034da7790f8c343657daf3e87fcb37d6a
          • MD5 SHA1 SHA512 SSDEEP

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 18KB
          • SHA256 30d34e505717ea56b06043f539e99fa2a23f1b27b25e89e06f06fe6cf19c8fc9
          • MD5 SHA1 SHA512 SSDEEP

          csrss.exe

          • Path C:\Windows\rss\csrss.exe
          • Size 4.1MB
          • SHA256 74ea64addfd2c94f94ba572ae504cc18a66b96b8f74c5c437dc4b48033ab37e3
          • MD5 SHA1 SHA512 SSDEEP

          windefender.exe

          • Path C:\Windows\windefender.exe
          • Size 2.0MB
          • SHA256 166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
          • MD5 SHA1 SHA512 SSDEEP

          memory/1440-1749-0x0000000000400000-0x00000000008DF000-memory.dmp

          memory/1440-1751-0x0000000000400000-0x00000000008DF000-memory.dmp

          memory/1440-1755-0x0000000000400000-0x00000000008DF000-memory.dmp

          memory/1676-275-0x0000000009ED0000-0x0000000009EEA000-memory.dmp

          memory/1676-13-0x00000000078A0000-0x0000000007906000-memory.dmp

          memory/1676-35-0x0000000008E10000-0x0000000008E4C000-memory.dmp

          memory/1676-66-0x0000000008ED0000-0x0000000008F46000-memory.dmp

          memory/1676-75-0x00000000707F0000-0x0000000070B40000-memory.dmp

          memory/1676-74-0x00000000707A0000-0x00000000707EB000-memory.dmp

          memory/1676-81-0x0000000009D50000-0x0000000009DF5000-memory.dmp

          memory/1676-76-0x0000000009CF0000-0x0000000009D0E000-memory.dmp

          memory/1676-73-0x0000000009D10000-0x0000000009D43000-memory.dmp

          memory/1676-82-0x0000000009F30000-0x0000000009FC4000-memory.dmp

          memory/1676-280-0x0000000009EC0000-0x0000000009EC8000-memory.dmp

          memory/1676-15-0x0000000007D70000-0x0000000007D8C000-memory.dmp

          memory/1676-298-0x0000000073A90000-0x000000007417E000-memory.dmp

          memory/1676-6-0x0000000073A9E000-0x0000000073A9F000-memory.dmp

          memory/1676-7-0x0000000001150000-0x0000000001186000-memory.dmp

          memory/1676-9-0x0000000073A90000-0x000000007417E000-memory.dmp

          memory/1676-14-0x0000000007A00000-0x0000000007D50000-memory.dmp

          memory/1676-16-0x0000000008340000-0x000000000838B000-memory.dmp

          memory/1676-12-0x0000000007020000-0x0000000007086000-memory.dmp

          memory/1676-11-0x00000000071D0000-0x00000000071F2000-memory.dmp

          memory/1676-10-0x0000000073A90000-0x000000007417E000-memory.dmp

          memory/1676-8-0x0000000007200000-0x0000000007828000-memory.dmp

          memory/1972-1290-0x00000000096B0000-0x0000000009755000-memory.dmp

          memory/1972-1263-0x0000000007A90000-0x0000000007DE0000-memory.dmp

          memory/1972-1265-0x0000000007FB0000-0x0000000007FFB000-memory.dmp

          memory/1972-1284-0x0000000070770000-0x00000000707BB000-memory.dmp

          memory/1972-1285-0x00000000707E0000-0x0000000070B30000-memory.dmp

          memory/2120-1020-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/2772-300-0x0000000000400000-0x0000000000D1C000-memory.dmp

          memory/2772-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

          memory/2772-301-0x0000000004960000-0x000000000524B000-memory.dmp

          memory/2772-2-0x0000000004960000-0x000000000524B000-memory.dmp

          memory/2772-299-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/2772-1-0x0000000004560000-0x000000000495E000-memory.dmp

          memory/3668-563-0x00000000708C0000-0x000000007090B000-memory.dmp

          memory/3668-564-0x0000000070910000-0x0000000070C60000-memory.dmp

          memory/3904-1027-0x0000000008420000-0x000000000846B000-memory.dmp

          memory/3904-1047-0x0000000070870000-0x0000000070BC0000-memory.dmp

          memory/3904-1052-0x0000000009500000-0x00000000095A5000-memory.dmp

          memory/3904-1025-0x0000000007AC0000-0x0000000007E10000-memory.dmp

          memory/3904-1046-0x0000000070820000-0x000000007086B000-memory.dmp

          memory/4224-326-0x0000000070910000-0x0000000070C60000-memory.dmp

          memory/4224-306-0x0000000008290000-0x00000000082DB000-memory.dmp

          memory/4224-305-0x0000000007EB0000-0x0000000008200000-memory.dmp

          memory/4224-325-0x00000000708C0000-0x000000007090B000-memory.dmp

          memory/4224-331-0x00000000097F0000-0x0000000009895000-memory.dmp

          memory/4288-803-0x00000000708C0000-0x000000007090B000-memory.dmp

          memory/4288-783-0x00000000074D0000-0x0000000007820000-memory.dmp

          memory/4288-804-0x0000000070930000-0x0000000070C80000-memory.dmp

          memory/4700-1745-0x0000000000400000-0x00000000008DF000-memory.dmp

          memory/4700-1748-0x0000000000400000-0x00000000008DF000-memory.dmp

          memory/4776-1521-0x0000000070770000-0x00000000707BB000-memory.dmp

          memory/4776-1522-0x00000000707C0000-0x0000000070B10000-memory.dmp

          memory/4776-1501-0x0000000007AC0000-0x0000000007E10000-memory.dmp

          memory/4888-1758-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1774-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1754-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1750-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1756-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1740-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1760-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1762-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1764-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1766-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1768-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1770-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1772-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1752-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1776-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1778-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1780-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1782-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1784-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1786-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1788-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1790-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1792-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1794-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1796-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1798-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1800-0x0000000000400000-0x000000000295C000-memory.dmp

          memory/4888-1802-0x0000000000400000-0x000000000295C000-memory.dmp