Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/07/2024, 12:12

General

  • Target
    231210-08-Glupteba-68a8fe.exe
  • Size 8.9MB
  • Sample240724-pc7e5aybrd
  • SHA256 8b0148744435d6298d2b73fe69019433ca6393e164af4e50709b7dda4b648891
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 7 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 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 Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 48 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\231210-08-Glupteba-68a8fe.exe
    "C:\Users\Admin\AppData\Local\Temp\231210-08-Glupteba-68a8fe.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4548
    • C:\Users\Admin\AppData\Local\Temp\pCrEUV.exe
      C:\Users\Admin\AppData\Local\Temp\pCrEUV.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1644
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\55ae6a14.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3600
    • 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:1684
    • C:\Users\Admin\AppData\Local\Temp\231210-08-Glupteba-68a8fe.exe
      "C:\Users\Admin\AppData\Local\Temp\231210-08-Glupteba-68a8fe.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
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1888
      • C:\Windows\TEMP\pCrEUV.exe
        C:\Windows\TEMP\pCrEUV.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2132
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Windows\TEMP\3c771450.bat" "
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4332
      • 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:5068
      • 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:996
        • 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:1612
      • 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:1100
      • 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:2764
      • 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:1948
        • C:\Windows\TEMP\pCrEUV.exe
          C:\Windows\TEMP\pCrEUV.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:632
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Windows\TEMP\13484dda.bat" "
            5⤵
            • System Location Discovery: System Language Discovery
            PID:3684
        • 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:4336
        • 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:1424
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4924
          • 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:2076
          • 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:1596
          • 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:1676
          • 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:1532

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          k2[1].rar

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\S5KAZR04\k2[1].rar
          • Size 4B
          • SHA256 b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c
          • MD5 SHA1 SHA512

          55ae6a14.bat

          • Path C:\Users\Admin\AppData\Local\Temp\55ae6a14.bat
          • Size 187B
          • SHA256 d1e8d996fc620c2348debf4552d60e96faa6a491c743e13c5916e615b5f036d1
          • MD5 SHA1 SHA512

          7AB40075.exe

          • Path C:\Users\Admin\AppData\Local\Temp\7AB40075.exe
          • Size 4B
          • SHA256 9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31
          • MD5 SHA1 SHA512

          __PSScriptPolicyTest_jv31el3p.0hv.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jv31el3p.0hv.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          injector.exe

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

          pCrEUV.exe

          • Path C:\Users\Admin\AppData\Local\Temp\pCrEUV.exe
          • Size 15KB
          • SHA256 4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794
          • 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 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
          • MD5 SHA1 SHA512

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 12673a9e0e22a249b2bc3c06eada10dbcc9c897837f7e75eb305edb0c2396e86
          • MD5 SHA1 SHA512 SSDEEP

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 b4b4d4d80c45a1ebce9a3aa208da21c65319647bba457bdf8cc42c7b2a15c3d4
          • MD5 SHA1 SHA512 SSDEEP

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 397fec18c7dffcb0fd96e3d57d50c5dcdee3117f63f2fd39ca7b118fa73ded37
          • MD5 SHA1 SHA512 SSDEEP

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 29b0347e1cc3e1d7e687e5cf6a0b4db0cab04e559e5df4d11228295369724865
          • MD5 SHA1 SHA512 SSDEEP

          StartupProfileData-Interactive

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
          • Size 19KB
          • SHA256 9e4656625749eb85e3b998c33290562b3ac1b4775fbd4c9717fc239afe3e184e
          • MD5 SHA1 SHA512 SSDEEP

          13484dda.bat

          • Path C:\Windows\TEMP\13484dda.bat
          • Size 133B
          • SHA256 119c77332cba2041587da7edb8352e105d926d35cf9e08a6141ab3c9bb3e3d54
          • MD5 SHA1 SHA512

          3c771450.bat

          • Path C:\Windows\TEMP\3c771450.bat
          • Size 133B
          • SHA256 ddf41241c4ef829ca4c8970f271f55651a2250477312db35956c14910791cfe0
          • MD5 SHA1 SHA512

          csrss.exe

          • Path C:\Windows\rss\csrss.exe
          • Size 8.9MB
          • SHA256 8b0148744435d6298d2b73fe69019433ca6393e164af4e50709b7dda4b648891
          • MD5 SHA1 SHA512 SSDEEP

          memory/632-194-0x00000000008C0000-0x00000000008C9000-memory.dmp

          memory/632-190-0x00000000008C0000-0x00000000008C9000-memory.dmp

          memory/1100-147-0x00000000748B0000-0x00000000748FC000-memory.dmp

          memory/1100-148-0x0000000070570000-0x00000000708C4000-memory.dmp

          memory/1100-145-0x0000000005630000-0x0000000005984000-memory.dmp

          memory/1596-261-0x0000000074740000-0x000000007478C000-memory.dmp

          memory/1596-262-0x00000000702C0000-0x0000000070614000-memory.dmp

          memory/1644-6-0x0000000000200000-0x0000000000209000-memory.dmp

          memory/1644-66-0x0000000000200000-0x0000000000209000-memory.dmp

          memory/1684-69-0x0000000007130000-0x00000000071A6000-memory.dmp

          memory/1684-54-0x0000000005EA0000-0x0000000005EEC000-memory.dmp

          memory/1684-84-0x00000000073B0000-0x00000000073CE000-memory.dmp

          memory/1684-85-0x00000000073D0000-0x0000000007473000-memory.dmp

          memory/1684-86-0x00000000074C0000-0x00000000074CA000-memory.dmp

          memory/1684-87-0x0000000007590000-0x0000000007626000-memory.dmp

          memory/1684-88-0x00000000074F0000-0x0000000007501000-memory.dmp

          memory/1684-89-0x0000000007530000-0x000000000753E000-memory.dmp

          memory/1684-90-0x0000000007540000-0x0000000007554000-memory.dmp

          memory/1684-91-0x0000000007630000-0x000000000764A000-memory.dmp

          memory/1684-92-0x0000000007570000-0x0000000007578000-memory.dmp

          memory/1684-95-0x00000000731F0000-0x00000000739A0000-memory.dmp

          memory/1684-33-0x0000000004E30000-0x0000000004E52000-memory.dmp

          memory/1684-40-0x0000000005790000-0x00000000057F6000-memory.dmp

          memory/1684-74-0x000000006FB40000-0x000000006FE94000-memory.dmp

          memory/1684-14-0x00000000731FE000-0x00000000731FF000-memory.dmp

          memory/1684-73-0x000000006FAF0000-0x000000006FB3C000-memory.dmp

          memory/1684-15-0x0000000004820000-0x0000000004856000-memory.dmp

          memory/1684-23-0x0000000005000000-0x0000000005628000-memory.dmp

          memory/1684-39-0x0000000005720000-0x0000000005786000-memory.dmp

          memory/1684-52-0x00000000059D0000-0x0000000005D24000-memory.dmp

          memory/1684-24-0x00000000731F0000-0x00000000739A0000-memory.dmp

          memory/1684-53-0x0000000005E00000-0x0000000005E1E000-memory.dmp

          memory/1684-25-0x00000000731F0000-0x00000000739A0000-memory.dmp

          memory/1684-72-0x0000000007370000-0x00000000073A2000-memory.dmp

          memory/1684-70-0x0000000007830000-0x0000000007EAA000-memory.dmp

          memory/1684-71-0x00000000071D0000-0x00000000071EA000-memory.dmp

          memory/1684-68-0x0000000006210000-0x0000000006254000-memory.dmp

          memory/1888-186-0x0000000000800000-0x0000000001121000-memory.dmp

          memory/1888-99-0x0000000000800000-0x0000000001121000-memory.dmp

          memory/1948-188-0x0000000000020000-0x0000000000941000-memory.dmp

          memory/1948-278-0x0000000000020000-0x0000000000941000-memory.dmp

          memory/2076-236-0x0000000074740000-0x000000007478C000-memory.dmp

          memory/2076-237-0x00000000702C0000-0x0000000070614000-memory.dmp

          memory/2076-235-0x0000000006BA0000-0x0000000006BEC000-memory.dmp

          memory/2076-247-0x0000000007BA0000-0x0000000007C43000-memory.dmp

          memory/2076-248-0x0000000007ED0000-0x0000000007EE1000-memory.dmp

          memory/2076-249-0x0000000006400000-0x0000000006414000-memory.dmp

          memory/2076-233-0x00000000064B0000-0x0000000006804000-memory.dmp

          memory/2132-101-0x0000000000320000-0x0000000000329000-memory.dmp

          memory/2132-106-0x0000000000320000-0x0000000000329000-memory.dmp

          memory/2764-170-0x0000000070340000-0x0000000070694000-memory.dmp

          memory/2764-169-0x00000000748B0000-0x00000000748FC000-memory.dmp

          memory/4336-221-0x00000000071E0000-0x00000000071F1000-memory.dmp

          memory/4336-209-0x0000000074780000-0x00000000747CC000-memory.dmp

          memory/4336-222-0x0000000005A30000-0x0000000005A44000-memory.dmp

          memory/4336-204-0x0000000005590000-0x00000000058E4000-memory.dmp

          memory/4336-220-0x0000000006EA0000-0x0000000006F43000-memory.dmp

          memory/4336-210-0x0000000074980000-0x0000000074CD4000-memory.dmp

          memory/4336-208-0x0000000006210000-0x000000000625C000-memory.dmp

          memory/4548-98-0x0000000000800000-0x0000000001121000-memory.dmp

          memory/4548-5-0x0000000000800000-0x0000000001121000-memory.dmp

          memory/5068-131-0x0000000007390000-0x00000000073A1000-memory.dmp

          memory/5068-119-0x00000000748B0000-0x00000000748FC000-memory.dmp

          memory/5068-118-0x0000000005F90000-0x0000000005FDC000-memory.dmp

          memory/5068-117-0x0000000005910000-0x0000000005C64000-memory.dmp

          memory/5068-120-0x0000000070340000-0x0000000070694000-memory.dmp

          memory/5068-130-0x0000000007070000-0x0000000007113000-memory.dmp

          memory/5068-132-0x00000000073E0000-0x00000000073F4000-memory.dmp