Analysis

  • max time kernel
    37s
  • max time network
    30s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/03/2024, 17:19

General

  • Target
    Build.exe
  • Size 11.9MB
  • Sample240302-vvtvmsfc9v
  • SHA256 8eeda0849b8bffc5d26ee56f02162f2e75e4271c4257c309197f3645fac47c03
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Creates new service(s) 1 TTPs
  • Drops file in Drivers directory 1 IoCs
  • Stops running service(s) 3 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Launches sc.exe 9 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).

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:612
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        2⤵
          PID:1020
      • C:\Windows\system32\lsass.exe
        C:\Windows\system32\lsass.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:660
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
        1⤵
          PID:952
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
          1⤵
            PID:508
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k netsvcs -p -s DsmSvc
            1⤵
              PID:432
            • C:\Windows\System32\svchost.exe
              C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
              1⤵
                PID:608
              • C:\Windows\System32\svchost.exe
                C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
                1⤵
                  PID:1036
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
                  1⤵
                    PID:1060
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
                    1⤵
                      PID:1168
                    • C:\Windows\System32\svchost.exe
                      C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
                      1⤵
                        PID:1232
                      • C:\Windows\sysmon.exe
                        C:\Windows\sysmon.exe
                        1⤵
                          PID:2640
                        • C:\Users\Admin\AppData\Local\Temp\Build.exe
                          "C:\Users\Admin\AppData\Local\Temp\Build.exe"
                          1⤵
                          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
                          • Checks BIOS information in registry
                          • Checks computer location settings
                          • Checks whether UAC is enabled
                          • Suspicious use of NtSetInformationThreadHideFromDebugger
                          • Modifies registry class
                          • Suspicious behavior: EnumeratesProcesses
                          • Suspicious use of WriteProcessMemory
                          PID:1724
                          • C:\Users\Admin\AppData\Local\Temp\Setup.exe
                            "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
                            2⤵
                            • Drops file in Drivers directory
                            • Executes dropped EXE
                            • Drops file in System32 directory
                            • Suspicious use of NtSetInformationThreadHideFromDebugger
                            • Suspicious use of SetThreadContext
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of WriteProcessMemory
                            PID:2272
                            • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
                              C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
                              3⤵
                              • Suspicious behavior: EnumeratesProcesses
                              • Suspicious use of AdjustPrivilegeToken
                              PID:2120
                            • C:\Windows\system32\cmd.exe
                              C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
                              3⤵
                              • Suspicious use of WriteProcessMemory
                              PID:2032
                              • C:\Windows\system32\wusa.exe
                                wusa /uninstall /kb:890830 /quiet /norestart
                                4⤵
                                  PID:1104
                              • C:\Windows\system32\sc.exe
                                C:\Windows\system32\sc.exe stop UsoSvc
                                3⤵
                                • Launches sc.exe
                                PID:4444
                              • C:\Windows\system32\sc.exe
                                C:\Windows\system32\sc.exe stop WaaSMedicSvc
                                3⤵
                                • Launches sc.exe
                                PID:4352
                              • C:\Windows\system32\sc.exe
                                C:\Windows\system32\sc.exe stop wuauserv
                                3⤵
                                • Launches sc.exe
                                PID:2920
                              • C:\Windows\system32\sc.exe
                                C:\Windows\system32\sc.exe stop bits
                                3⤵
                                • Launches sc.exe
                                PID:980
                              • C:\Windows\system32\sc.exe
                                C:\Windows\system32\sc.exe stop dosvc
                                3⤵
                                • Launches sc.exe
                                PID:4600
                              • C:\Windows\system32\powercfg.exe
                                C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
                                3⤵
                                • Suspicious use of AdjustPrivilegeToken
                                PID:5116
                              • C:\Windows\system32\powercfg.exe
                                C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
                                3⤵
                                • Suspicious use of AdjustPrivilegeToken
                                PID:1284
                              • C:\Windows\system32\powercfg.exe
                                C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
                                3⤵
                                • Suspicious use of AdjustPrivilegeToken
                                PID:3280
                              • C:\Windows\system32\powercfg.exe
                                C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
                                3⤵
                                • Suspicious use of AdjustPrivilegeToken
                                PID:2556
                              • C:\Windows\system32\dialer.exe
                                C:\Windows\system32\dialer.exe
                                3⤵
                                • Suspicious behavior: EnumeratesProcesses
                                • Suspicious use of AdjustPrivilegeToken
                                • Suspicious use of WriteProcessMemory
                                PID:1624
                              • C:\Windows\system32\sc.exe
                                C:\Windows\system32\sc.exe delete "WindowsComplite"
                                3⤵
                                • Launches sc.exe
                                PID:2848
                              • C:\Windows\system32\sc.exe
                                C:\Windows\system32\sc.exe create "WindowsComplite" binpath= "C:\ProgramData\hmtufamemhvn\kvkinxkledtt.exe" start= "auto"
                                3⤵
                                • Launches sc.exe
                                PID:4052
                              • C:\Windows\system32\sc.exe
                                C:\Windows\system32\sc.exe stop eventlog
                                3⤵
                                • Launches sc.exe
                                PID:1628
                              • C:\Windows\system32\sc.exe
                                C:\Windows\system32\sc.exe start "WindowsComplite"
                                3⤵
                                • Launches sc.exe
                                PID:1648
                            • C:\Users\Admin\AppData\Local\Temp\Updater.exe
                              "C:\Users\Admin\AppData\Local\Temp\Updater.exe"
                              2⤵
                              • Executes dropped EXE
                              • Suspicious use of AdjustPrivilegeToken
                              PID:4024
                          • C:\ProgramData\hmtufamemhvn\kvkinxkledtt.exe
                            C:\ProgramData\hmtufamemhvn\kvkinxkledtt.exe
                            1⤵
                            • Executes dropped EXE
                            • Suspicious use of NtSetInformationThreadHideFromDebugger
                            • Suspicious behavior: EnumeratesProcesses
                            PID:1452
                            • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
                              C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
                              2⤵
                                PID:5072
                            • C:\Windows\system32\sihost.exe
                              sihost.exe
                              1⤵
                                PID:3560
                              • C:\Windows\system32\sihost.exe
                                sihost.exe
                                1⤵
                                  PID:2820
                                • C:\Windows\system32\sihost.exe
                                  sihost.exe
                                  1⤵
                                    PID:3924
                                  • C:\Windows\system32\sihost.exe
                                    sihost.exe
                                    1⤵
                                      PID:4624
                                    • C:\Windows\system32\sihost.exe
                                      sihost.exe
                                      1⤵
                                        PID:3500

                                      Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

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                                            Downloads

                                            kvkinxkledtt.exe

                                            • Path C:\ProgramData\hmtufamemhvn\kvkinxkledtt.exe
                                            • Size 768KB
                                            • SHA256 e2ab6738b98397ae73821b40010df0147de8f07fa1379348ab0172c2dada68a4
                                            • MD5 SHA1 SHA512 SSDEEP

                                            kvkinxkledtt.exe

                                            • Path C:\ProgramData\hmtufamemhvn\kvkinxkledtt.exe
                                            • Size 832KB
                                            • SHA256 8cb013b239bee9f9ed998d4dac74d05b49e998d1f0d40559d2f9ae291b8e0a76
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Setup.exe

                                            • Path C:\Users\Admin\AppData\Local\Temp\Setup.exe
                                            • Size 2.0MB
                                            • SHA256 723ba9213bd78093c17d3e42599cc22c7cfc95a6953518bcadcbaad891289afc
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Setup.exe

                                            • Path C:\Users\Admin\AppData\Local\Temp\Setup.exe
                                            • Size 1.1MB
                                            • SHA256 a93a353ca8473b9fc9b194223110b022dc7ca4e0dfab5bec79971a0ee1df5c03
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Setup.exe

                                            • Path C:\Users\Admin\AppData\Local\Temp\Setup.exe
                                            • Size 8.5MB
                                            • SHA256 e49aec48358a65ac8d93539528d239cf5b9346e83efe7e67a8fa434283fa2d25
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Updater.exe

                                            • Path C:\Users\Admin\AppData\Local\Temp\Updater.exe
                                            • Size 755KB
                                            • SHA256 556150647d272430bdf82d860796a167f1737a53e0df19def62220f32eef58ea
                                            • MD5 SHA1 SHA512 SSDEEP

                                            Updater.exe

                                            • Path C:\Users\Admin\AppData\Local\Temp\Updater.exe
                                            • Size 984KB
                                            • SHA256 2e5a498e9299a5a6d7ca9d36def6d2f546812a34db0fe91528ab586dd9d07a18
                                            • MD5 SHA1 SHA512 SSDEEP

                                            __PSScriptPolicyTest_h2uvcqmn.ivw.ps1

                                            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_h2uvcqmn.ivw.ps1
                                            • Size 60B
                                            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                                            • MD5 SHA1 SHA512

                                            memory/432-173-0x000002BCAB370000-0x000002BCAB39B000-memory.dmp

                                            memory/432-181-0x000002BCAB370000-0x000002BCAB39B000-memory.dmp

                                            memory/432-176-0x00007FF861CF0000-0x00007FF861D00000-memory.dmp

                                            memory/508-180-0x000001ABAA320000-0x000001ABAA34B000-memory.dmp

                                            memory/508-170-0x000001ABAA320000-0x000001ABAA34B000-memory.dmp

                                            memory/508-172-0x00007FF861CF0000-0x00007FF861D00000-memory.dmp

                                            memory/608-188-0x000001D61BFC0000-0x000001D61BFEB000-memory.dmp

                                            memory/608-191-0x00007FF861CF0000-0x00007FF861D00000-memory.dmp

                                            memory/612-150-0x00000175D8EE0000-0x00000175D8F0B000-memory.dmp

                                            memory/612-209-0x00007FF861CF0000-0x00007FF861D00000-memory.dmp

                                            memory/612-147-0x00000175D8EB0000-0x00000175D8ED4000-memory.dmp

                                            memory/612-148-0x00000175D8EE0000-0x00000175D8F0B000-memory.dmp

                                            memory/612-155-0x00007FF8A1D0D000-0x00007FF8A1D0E000-memory.dmp

                                            memory/612-210-0x00000175D8EE0000-0x00000175D8F0B000-memory.dmp

                                            memory/660-167-0x00007FF8A1D0F000-0x00007FF8A1D10000-memory.dmp

                                            memory/660-158-0x0000018951C30000-0x0000018951C5B000-memory.dmp

                                            memory/660-208-0x0000018951C30000-0x0000018951C5B000-memory.dmp

                                            memory/660-153-0x0000018951C30000-0x0000018951C5B000-memory.dmp

                                            memory/660-156-0x00007FF861CF0000-0x00007FF861D00000-memory.dmp

                                            memory/660-163-0x00007FF8A1D0D000-0x00007FF8A1D0E000-memory.dmp

                                            memory/952-179-0x00007FF8A1D0C000-0x00007FF8A1D0D000-memory.dmp

                                            memory/952-174-0x0000027B755F0000-0x0000027B7561B000-memory.dmp

                                            memory/952-164-0x00007FF861CF0000-0x00007FF861D00000-memory.dmp

                                            memory/952-160-0x0000027B755F0000-0x0000027B7561B000-memory.dmp

                                            memory/1020-165-0x00007FF861CF0000-0x00007FF861D00000-memory.dmp

                                            memory/1020-161-0x000001E46A0D0000-0x000001E46A0FB000-memory.dmp

                                            memory/1020-177-0x000001E46A0D0000-0x000001E46A0FB000-memory.dmp

                                            memory/1036-192-0x0000016100570000-0x000001610059B000-memory.dmp

                                            memory/1036-195-0x00007FF861CF0000-0x00007FF861D00000-memory.dmp

                                            memory/1060-198-0x00007FF861CF0000-0x00007FF861D00000-memory.dmp

                                            memory/1060-193-0x000002289E120000-0x000002289E14B000-memory.dmp

                                            memory/1168-200-0x00007FF861CF0000-0x00007FF861D00000-memory.dmp

                                            memory/1168-197-0x000001339A3C0000-0x000001339A3EB000-memory.dmp

                                            memory/1232-203-0x0000027E34650000-0x0000027E3467B000-memory.dmp

                                            memory/1232-205-0x00007FF861CF0000-0x00007FF861D00000-memory.dmp

                                            memory/1264-228-0x00000229CA3D0000-0x00000229CA3FB000-memory.dmp

                                            memory/1308-232-0x0000022C5CD30000-0x0000022C5CD5B000-memory.dmp

                                            memory/1344-236-0x000001C762090000-0x000001C7620BB000-memory.dmp

                                            memory/1444-240-0x0000018EAAF40000-0x0000018EAAF6B000-memory.dmp

                                            memory/1452-289-0x00007FF728EE0000-0x00007FF72A417000-memory.dmp

                                            memory/1452-171-0x00007FF46E0E0000-0x00007FF46E4B1000-memory.dmp

                                            memory/1452-206-0x00007FF728EE0000-0x00007FF72A417000-memory.dmp

                                            memory/1452-182-0x00007FF728EE0000-0x00007FF72A417000-memory.dmp

                                            memory/1452-184-0x00007FF728EE0000-0x00007FF72A417000-memory.dmp

                                            memory/1452-273-0x00007FF46E0E0000-0x00007FF46E4B1000-memory.dmp

                                            memory/1456-248-0x0000011E32A40000-0x0000011E32A6B000-memory.dmp

                                            memory/1528-244-0x000002732C9B0000-0x000002732C9DB000-memory.dmp

                                            memory/1548-257-0x00000215D9600000-0x00000215D962B000-memory.dmp

                                            memory/1624-139-0x00007FF8A1C70000-0x00007FF8A1E65000-memory.dmp

                                            memory/1624-135-0x0000000140000000-0x000000014002B000-memory.dmp

                                            memory/1624-133-0x0000000140000000-0x000000014002B000-memory.dmp

                                            memory/1624-134-0x0000000140000000-0x000000014002B000-memory.dmp

                                            memory/1624-144-0x0000000140000000-0x000000014002B000-memory.dmp

                                            memory/1624-140-0x00007FF8A1B50000-0x00007FF8A1C0E000-memory.dmp

                                            memory/1624-138-0x0000000140000000-0x000000014002B000-memory.dmp

                                            memory/1624-136-0x0000000140000000-0x000000014002B000-memory.dmp

                                            memory/1664-253-0x000002A995180000-0x000002A9951AB000-memory.dmp

                                            memory/1708-294-0x0000024E00FB0000-0x0000024E00FDB000-memory.dmp

                                            memory/1724-83-0x0000000000400000-0x000000000141D000-memory.dmp

                                            memory/1724-0-0x0000000000400000-0x000000000141D000-memory.dmp

                                            memory/1724-1-0x00000000774F4000-0x00000000774F6000-memory.dmp

                                            memory/2120-111-0x000001C8D7440000-0x000001C8D7462000-memory.dmp

                                            memory/2120-124-0x000001C8BCD60000-0x000001C8BCD70000-memory.dmp

                                            memory/2120-122-0x000001C8BCD60000-0x000001C8BCD70000-memory.dmp

                                            memory/2120-125-0x000001C8BCD60000-0x000001C8BCD70000-memory.dmp

                                            memory/2120-123-0x000001C8BCD60000-0x000001C8BCD70000-memory.dmp

                                            memory/2120-131-0x00007FF882DF0000-0x00007FF8838B1000-memory.dmp

                                            memory/2120-121-0x00007FF882DF0000-0x00007FF8838B1000-memory.dmp

                                            memory/2272-143-0x00007FF4D2530000-0x00007FF4D2901000-memory.dmp

                                            memory/2272-91-0x00007FF68B500000-0x00007FF68CA37000-memory.dmp

                                            memory/2272-84-0x00007FF4D2530000-0x00007FF4D2901000-memory.dmp

                                            memory/2272-45-0x00007FF68B500000-0x00007FF68CA37000-memory.dmp

                                            memory/2272-142-0x00007FF68B500000-0x00007FF68CA37000-memory.dmp

                                            memory/2272-105-0x00007FF68B500000-0x00007FF68CA37000-memory.dmp

                                            memory/4024-110-0x0000000007E30000-0x0000000008184000-memory.dmp

                                            memory/4024-102-0x0000000006EB0000-0x0000000006ECE000-memory.dmp

                                            memory/4024-87-0x0000000074A40000-0x00000000751F0000-memory.dmp

                                            memory/4024-88-0x0000000002FF0000-0x0000000003000000-memory.dmp

                                            memory/4024-89-0x00000000055C0000-0x0000000005624000-memory.dmp

                                            memory/4024-90-0x0000000005640000-0x000000000565A000-memory.dmp

                                            memory/4024-92-0x0000000005660000-0x000000000567C000-memory.dmp

                                            memory/4024-93-0x0000000005720000-0x00000000057B2000-memory.dmp

                                            memory/4024-94-0x0000000006A30000-0x0000000006A4E000-memory.dmp

                                            memory/4024-95-0x0000000006D30000-0x0000000006DB2000-memory.dmp

                                            memory/4024-96-0x0000000006DB0000-0x0000000006DD6000-memory.dmp

                                            memory/4024-97-0x0000000006DE0000-0x0000000006DE8000-memory.dmp

                                            memory/4024-130-0x0000000074A40000-0x00000000751F0000-memory.dmp

                                            memory/4024-109-0x0000000007520000-0x0000000007542000-memory.dmp

                                            memory/4024-98-0x0000000006E10000-0x0000000006E18000-memory.dmp

                                            memory/4024-108-0x0000000007410000-0x00000000074C0000-memory.dmp

                                            memory/4024-99-0x0000000006E20000-0x0000000006E2A000-memory.dmp

                                            memory/4024-100-0x0000000006E60000-0x0000000006E76000-memory.dmp

                                            memory/4024-101-0x0000000006E80000-0x0000000006E8A000-memory.dmp

                                            memory/4024-86-0x0000000000B60000-0x0000000000C5C000-memory.dmp

                                            memory/4024-103-0x0000000006F80000-0x0000000006FE6000-memory.dmp

                                            memory/4024-104-0x0000000007880000-0x0000000007E24000-memory.dmp

                                            memory/4024-107-0x0000000007070000-0x000000000707A000-memory.dmp

                                            memory/5072-224-0x000001BAF9140000-0x000001BAF9150000-memory.dmp

                                            memory/5072-222-0x000001BAF9140000-0x000001BAF9150000-memory.dmp

                                            memory/5072-212-0x00007FF882DF0000-0x00007FF8838B1000-memory.dmp