Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/06/2024, 01:59

General

  • Target
    f0e9974dead6f18b6697846e090af1d56a7f8d94bf32e9b98583b7b07e687401.exe
  • Size 2.1MB
  • Sample240601-cej2dsef92
  • SHA256 f0e9974dead6f18b6697846e090af1d56a7f8d94bf32e9b98583b7b07e687401
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Process spawned unexpected child process 18 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Detects executables packed with unregistered version of .NET Reactor 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 4 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 18 IoCs

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

  • Modifies registry class 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 28 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\f0e9974dead6f18b6697846e090af1d56a7f8d94bf32e9b98583b7b07e687401.exe
    "C:\Users\Admin\AppData\Local\Temp\f0e9974dead6f18b6697846e090af1d56a7f8d94bf32e9b98583b7b07e687401.exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4892
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Refruntime\6ZGF3GWTyiIrgsoUhZP9qVSNQMVLSQUZZt.vbe"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:1440
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Refruntime\cNiACUO2UiPOjHu3oFipMiH5iUpfcQ8F3xKAVayXqlSfmd.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4036
        • C:\Refruntime\ProviderDriverHostperfDhcp.exe
          "C:\Refruntime/ProviderDriverHostperfDhcp.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Drops file in Windows directory
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4452
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\wininit.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:744
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\services.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1492
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\All Users\Packages\Microsoft.549981C3F5F10_8wekyb3d8bbwe\S-1-5-21-1337824034-2731376981-3755436523-1000\System.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:4100
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows\Speech_OneCore\Engines\SR\en-US-N\TrustedInstaller.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:4812
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Refruntime\unsecapp.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:4368
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Refruntime\ProviderDriverHostperfDhcp.exe'
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of AdjustPrivilegeToken
            PID:1792
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\a4p2mvnbum.bat"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1836
            • C:\Windows\system32\chcp.com
              chcp 65001
              6⤵
                PID:4440
              • C:\Windows\system32\PING.EXE
                ping -n 10 localhost
                6⤵
                • Runs ping.exe
                PID:3940
              • C:\Users\All Users\Packages\Microsoft.549981C3F5F10_8wekyb3d8bbwe\S-1-5-21-1337824034-2731376981-3755436523-1000\System.exe
                "C:\Users\All Users\Packages\Microsoft.549981C3F5F10_8wekyb3d8bbwe\S-1-5-21-1337824034-2731376981-3755436523-1000\System.exe"
                6⤵
                • Executes dropped EXE
                • Suspicious behavior: GetForegroundWindowSpam
                • Suspicious use of AdjustPrivilegeToken
                PID:3176
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\wininit.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:2360
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:2676
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:1212
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\services.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:4472
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:2304
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "servicess" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\services.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:4944
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 6 /tr "'C:\Users\All Users\Packages\Microsoft.549981C3F5F10_8wekyb3d8bbwe\S-1-5-21-1337824034-2731376981-3755436523-1000\System.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:4432
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Users\All Users\Packages\Microsoft.549981C3F5F10_8wekyb3d8bbwe\S-1-5-21-1337824034-2731376981-3755436523-1000\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:4440
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 5 /tr "'C:\Users\All Users\Packages\Microsoft.549981C3F5F10_8wekyb3d8bbwe\S-1-5-21-1337824034-2731376981-3755436523-1000\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:2768
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "TrustedInstallerT" /sc MINUTE /mo 14 /tr "'C:\Windows\Speech_OneCore\Engines\SR\en-US-N\TrustedInstaller.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:3108
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "TrustedInstaller" /sc ONLOGON /tr "'C:\Windows\Speech_OneCore\Engines\SR\en-US-N\TrustedInstaller.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:2708
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "TrustedInstallerT" /sc MINUTE /mo 13 /tr "'C:\Windows\Speech_OneCore\Engines\SR\en-US-N\TrustedInstaller.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:1848
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 11 /tr "'C:\Refruntime\unsecapp.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:980
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Refruntime\unsecapp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:4888
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 12 /tr "'C:\Refruntime\unsecapp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:1608
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "ProviderDriverHostperfDhcpP" /sc MINUTE /mo 10 /tr "'C:\Refruntime\ProviderDriverHostperfDhcp.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:4112
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "ProviderDriverHostperfDhcp" /sc ONLOGON /tr "'C:\Refruntime\ProviderDriverHostperfDhcp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:3976
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "ProviderDriverHostperfDhcpP" /sc MINUTE /mo 7 /tr "'C:\Refruntime\ProviderDriverHostperfDhcp.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:1044

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          6ZGF3GWTyiIrgsoUhZP9qVSNQMVLSQUZZt.vbe

          • Path C:\Refruntime\6ZGF3GWTyiIrgsoUhZP9qVSNQMVLSQUZZt.vbe
          • Size 235B
          • SHA256 adc1ab474c9a0d09f320cbd1b8dab58f9fa3ce876fa58094837304cf3abb8510
          • MD5 SHA1 SHA512

          ProviderDriverHostperfDhcp.exe

          • Path C:\Refruntime\ProviderDriverHostperfDhcp.exe
          • Size 1.8MB
          • SHA256 a50f8b7a67338a939ee0fc47f3140bb7f9724ab9c183e2dccb005885f962798b
          • MD5 SHA1 SHA512 SSDEEP

          cNiACUO2UiPOjHu3oFipMiH5iUpfcQ8F3xKAVayXqlSfmd.bat

          • Path C:\Refruntime\cNiACUO2UiPOjHu3oFipMiH5iUpfcQ8F3xKAVayXqlSfmd.bat
          • Size 95B
          • SHA256 9c65d82facd9e8ee21b5f88d5f51823c7c71b5ffa28c665d886abdf3297b0fc4
          • MD5 SHA1 SHA512

          powershell.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
          • Size 2KB
          • SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 944B
          • SHA256 2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 944B
          • SHA256 18f381e0db020a763b8c515c346ef58679ab9c403267eacfef5359e272f7e71d
          • MD5 SHA1 SHA512

          __PSScriptPolicyTest_hb0bxu30.kxg.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hb0bxu30.kxg.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          a4p2mvnbum.bat

          • Path C:\Users\Admin\AppData\Local\Temp\a4p2mvnbum.bat
          • Size 251B
          • SHA256 455b8df80e4fb81c40afaf07f400146f1d5ccd1cc4ca204b2a522381ed23fed0
          • MD5 SHA1 SHA512

          memory/3176-119-0x0000000002810000-0x0000000002818000-memory.dmp

          memory/4100-47-0x000001927ACD0000-0x000001927ACF2000-memory.dmp

          memory/4452-13-0x00000000007D0000-0x00000000009AE000-memory.dmp

          memory/4452-41-0x0000000002B60000-0x0000000002B68000-memory.dmp

          memory/4452-24-0x0000000001330000-0x000000000133C000-memory.dmp

          memory/4452-22-0x0000000001320000-0x0000000001328000-memory.dmp

          memory/4452-20-0x0000000002B20000-0x0000000002B38000-memory.dmp

          memory/4452-18-0x0000000002B70000-0x0000000002BC0000-memory.dmp

          memory/4452-17-0x0000000001340000-0x000000000135C000-memory.dmp

          memory/4452-15-0x00000000011C0000-0x00000000011CE000-memory.dmp

          memory/4452-12-0x00007FFDACE23000-0x00007FFDACE25000-memory.dmp