Overview

overview

8

Static

static

3

2026-04-21...ti.exe

windows10-2004-x64

8

2026-04-21...ti.exe

windows11-21h2-x64

8

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    21/04/2026, 11:19

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General

  • Target
    2026-04-21_c233267d1f928146217b38837357bba3_conti.exe
  • Size 461KB
  • Sample260421-nfct9agy7x
  • SHA256 2106a01024bd02b5272407ac8d44bb36f3b501b2564adb55c19f8b043df68f62
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
persistenceransomware

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Checks SCSI registry key(s) 3 TTPs 58 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 5 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of FindShellTrayWindow 57 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:2856
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
      1⤵
        PID:780
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:3160
          • C:\Users\Admin\AppData\Local\Temp\2026-04-21_c233267d1f928146217b38837357bba3_conti.exe
            "C:\Users\Admin\AppData\Local\Temp\2026-04-21_c233267d1f928146217b38837357bba3_conti.exe"
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:3268
            • C:\Windows\System32\Conhost.exe
              \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
              3⤵
                PID:1804
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
            1⤵
              PID:3280
            • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
              "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
              1⤵
                PID:3532
              • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                1⤵
                  PID:3568
                • C:\Windows\System32\RuntimeBroker.exe
                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                  1⤵
                    PID:3652
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:3708
                    • C:\Windows\system32\DllHost.exe
                      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                      1⤵
                        PID:3776
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k UdkSvcGroup -s UdkUserSvc
                        1⤵
                          PID:3788
                        • C:\Windows\system32\DllHost.exe
                          C:\Windows\system32\DllHost.exe /Processid:{973D20D7-562D-44B9-B70B-5A0F49CCDF3F}
                          1⤵
                            PID:3344
                          • C:\Windows\system32\sihost.exe
                            sihost.exe
                            1⤵
                            • Suspicious use of WriteProcessMemory
                            PID:3112
                            • C:\Windows\explorer.exe
                              explorer.exe /LOADSAVEDWINDOWS
                              2⤵
                              • Boot or Logon Autostart Execution: Active Setup
                              • Enumerates connected drives
                              • Checks SCSI registry key(s)
                              • Modifies registry class
                              • Suspicious behavior: EnumeratesProcesses
                              • Suspicious use of AdjustPrivilegeToken
                              • Suspicious use of FindShellTrayWindow
                              • Suspicious use of SendNotifyMessage
                              • Suspicious use of SetWindowsHookEx
                              PID:3852
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                            1⤵
                            • Suspicious behavior: AddClipboardFormatListener
                            PID:6100
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                            1⤵
                              PID:4376
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k UdkSvcGroup -s UdkUserSvc
                              1⤵
                                PID:2152
                              • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                                "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                                1⤵
                                • Suspicious use of SetWindowsHookEx
                                PID:4860
                              • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
                                "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
                                1⤵
                                • Enumerates system info in registry
                                • Modifies data under HKEY_USERS
                                • Modifies registry class
                                • Suspicious use of SetWindowsHookEx
                                PID:2952

                              Network

                                    MITRE ATT&CK Enterprise v16

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                                    Downloads

                                    microsoftwindows.client[1].xml
                                    • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\ZX7UM3C4\microsoftwindows.client[1].xml
                                    • Size 97B
                                    • SHA256 fa96410f14ae8a1ae3a57b91b093d2c928c157d4f8316cb27639852b923bcacc
                                    • MD5 SHA1 SHA512 TLSH
                                    Submit Download

                                    memory/2856-0-0x000002AB091D0000-0x000002AB091D1000-memory.dmp
                                    Download

                                    memory/2952-75-0x000002409F3D0000-0x000002409F3F0000-memory.dmp
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                                    memory/2952-59-0x000002409FB20000-0x000002409FB40000-memory.dmp
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                                    memory/2952-93-0x000002409FF90000-0x000002409FFB0000-memory.dmp
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                                    memory/2952-94-0x000002409FF70000-0x000002409FF90000-memory.dmp
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                                    memory/2952-156-0x000002409ED30000-0x000002409EE30000-memory.dmp
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                                    memory/3160-24-0x00000000009C0000-0x00000000009C1000-memory.dmp
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                                    memory/3268-22-0x00007FF65DD70000-0x00007FF65DDD0000-memory.dmp
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