Analysis

  • max time kernel
    43s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    20-10-2022 18:56

General

  • Target

    c25d29fccc7f4fc539e8b739dff5f0f638b271ea47ac1f11b0930fbcd9e979d5.exe

  • Size

    654KB

  • MD5

    96927fdee0fcc4515ef1271c0a457803

  • SHA1

    10c03d2947279f7b74362bbfa0ccdc1b40c0ee7c

  • SHA256

    c25d29fccc7f4fc539e8b739dff5f0f638b271ea47ac1f11b0930fbcd9e979d5

  • SHA512

    2a5a22837504508bbd6c17625e2f2b62ccdafc2daf13b60ebe6ba803a4c1c4225abf686d76ed0d6db4653ea2ef1c640b2f389ef8259058c98f628fc003800928

  • SSDEEP

    6144:npqoa8aLiC/2OLSAN7gNVpNleQUohBfGPOtQciXeL/XYqGlebojSP2pjNhcYYnCK:npqiC/2OGAtkCP4cejGSOpRKPC8Rsw

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Adds Run key to start application 2 TTPs 2 IoCs
  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 5 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\csrss.exe
    %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
    1⤵
      PID:384
    • C:\Windows\system32\lsass.exe
      C:\Windows\system32\lsass.exe
      1⤵
        PID:480
      • C:\Windows\system32\services.exe
        C:\Windows\system32\services.exe
        1⤵
          PID:464
          • C:\Windows\System32\svchost.exe
            C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
            2⤵
              PID:752
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k LocalService
              2⤵
                PID:840
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k NetworkService
                2⤵
                  PID:340
                • C:\Windows\system32\taskhost.exe
                  "taskhost.exe"
                  2⤵
                    PID:1108
                  • C:\Windows\system32\sppsvc.exe
                    C:\Windows\system32\sppsvc.exe
                    2⤵
                      PID:1656
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
                      2⤵
                        PID:1788
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                        2⤵
                          PID:1080
                        • C:\Windows\System32\spoolsv.exe
                          C:\Windows\System32\spoolsv.exe
                          2⤵
                            PID:836
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k netsvcs
                            2⤵
                              PID:884
                            • C:\Windows\System32\svchost.exe
                              C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
                              2⤵
                                PID:804
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k RPCSS
                                2⤵
                                  PID:668
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k DcomLaunch
                                  2⤵
                                    PID:592
                                • C:\Windows\system32\winlogon.exe
                                  winlogon.exe
                                  1⤵
                                    PID:420
                                  • C:\Windows\system32\wininit.exe
                                    wininit.exe
                                    1⤵
                                      PID:372
                                      • C:\Windows\system32\lsm.exe
                                        C:\Windows\system32\lsm.exe
                                        2⤵
                                          PID:488
                                      • C:\Windows\Explorer.EXE
                                        C:\Windows\Explorer.EXE
                                        1⤵
                                          PID:1192
                                          • C:\Users\Admin\AppData\Local\Temp\c25d29fccc7f4fc539e8b739dff5f0f638b271ea47ac1f11b0930fbcd9e979d5.exe
                                            "C:\Users\Admin\AppData\Local\Temp\c25d29fccc7f4fc539e8b739dff5f0f638b271ea47ac1f11b0930fbcd9e979d5.exe"
                                            2⤵
                                            • Modifies WinLogon for persistence
                                            • Disables RegEdit via registry modification
                                            • Adds Run key to start application
                                            • Modifies Internet Explorer settings
                                            • Modifies Internet Explorer start page
                                            • Suspicious behavior: EnumeratesProcesses
                                            • Suspicious behavior: MapViewOfSection
                                            • Suspicious use of AdjustPrivilegeToken
                                            • Suspicious use of WriteProcessMemory
                                            PID:1388
                                        • \\?\C:\Windows\system32\wbem\WMIADAP.EXE
                                          wmiadap.exe /F /T /R
                                          1⤵
                                            PID:2012
                                          • C:\Windows\system32\Dwm.exe
                                            "C:\Windows\system32\Dwm.exe"
                                            1⤵
                                              PID:1168

                                            Network

                                            MITRE ATT&CK Enterprise v6

                                            Replay Monitor

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                                            Downloads

                                            • memory/1388-54-0x0000000075711000-0x0000000075713000-memory.dmp

                                              Filesize

                                              8KB

                                            • memory/1388-55-0x0000000000400000-0x00000000004D2000-memory.dmp

                                              Filesize

                                              840KB

                                            • memory/1388-56-0x0000000000400000-0x00000000004D2000-memory.dmp

                                              Filesize

                                              840KB