Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/08/2026, 15:06

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260808-sgzsmaea97
  • SHA256 7aee8fbe1e1c74f6128f977d9e5ebe46adce4faa1f7a61f95b02c73e5a760ceb
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • ConnectWise ScreenConnect remote access tool

    ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Boot or Logon Autostart Execution: Authentication Package 1 TTPs 1 IoCs

    Suspicious Windows Authentication Registry Modification.

  • Drops file in System32 directory 21 IoCs
  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 14 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3372
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\d65a3ebd9ec8b8a0\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:2324
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Boot or Logon Autostart Execution: Authentication Package
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1408
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding ACF189D1E7D227A6DCF1FC23EED0ED87 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4688
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI7248.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240743203 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4684
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI771B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240744250 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3752
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI70BF.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240808171 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1116
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3148
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding D2D25886ECBF6A883F8FEF0291050663
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3000
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 6F99A6DD2912DDFED718DC812E7A2018 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2368
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2080
    • C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-jvcnso-relay.screenconnect.com&p=443&s=5c3a1d5d-d02f-4c24-a523-82cddec385d5&k=BgIAAACkAABSU0ExAAgAAAEAAQBdGEsx8%2fUZoEH5I13Ql1%2f5BtNykaswgLbv0JgAWiLfEsJHzBxIyvrzXQrYdrj6bYpe2425J%2bwlwB%2b44UxUlDGHaqRSa5cxl1QuslnGXJM9AxkMedeiyLcWkgJI4DR5ZhvXgmpXuNSWP8HR0JR3eeHa3OH6R6RciquTHsZ8aRNkV5zaMiMnAaLYsyMHwjYRJ%2fj%2fN3gvlreAuLOW2d4sPkTaNEpI2BuSaiq%2f0vQQbIFoC5oJX2BMEmm3008ZZtN22%2bMJi%2fU7CyDvizv81t4SgMOXwLaM845R%2ffRpBrl2sGU0jGC6Gg0oYRrYFW3iCktI0zlQXhCaq%2fmpkP3p8wgNaz7J"
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5140
      • C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\ScreenConnect.WindowsClient.exe" "RunRole" "93488bc5-993e-477a-b2ac-1a45b64a9b5f" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1928

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5aaf9b.rbs

          • Path C:\Config.Msi\e5aaf9b.rbs
          • Size 214KB
          • SHA256 08a00bcd11c07e75e2e46fe68123e842c8133e4a16a7c7d35224090a010a66d5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (d65a3ebd9ec8b8a0)\system.config
          • Size 966B
          • SHA256 b68f9adb81564f7a0668229ed5e5d99fd6797e70bb758967054a14c204ab6be5
          • MD5 SHA1 SHA512 TLSH

          MSI7248.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7248.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7248.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7248.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7248.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI7248.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI771B.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI771B.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\d65a3ebd9ec8b8a0\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 1246a085118abe18ca5a3845912cebd36fe10e83b383181cd2b2c4ebd8fad981
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIB633.tmp

          • Path C:\Windows\Installer\MSIB633.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          40cvutww.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d65a3ebd9ec8b8a0)\40cvutww.newcfg
          • Size 882B
          • SHA256 ab8f489ae7bced53ebf2169d941a54ea2772a75e226bb5eecb3cd75a6fdd83be
          • MD5 SHA1 SHA512 TLSH

          ik4ymohy.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d65a3ebd9ec8b8a0)\ik4ymohy.newcfg
          • Size 882B
          • SHA256 5668c7a262999f93795f09bfeba73a79c38264bfd1aecf6ffddc313be0ceaeed
          • MD5 SHA1 SHA512 TLSH

          rm1yk4zd.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d65a3ebd9ec8b8a0)\rm1yk4zd.newcfg
          • Size 882B
          • SHA256 7b97f95306dc4b215c103f708d277b29d6512d0d97b18f62bd994676a989dc5f
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d65a3ebd9ec8b8a0)\user.config
          • Size 683B
          • SHA256 35be3fc4bb9214d48d6434b8d2b44629c5dcc8cfb92385efadac6e14495885a2
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d65a3ebd9ec8b8a0)\user.config
          • Size 520B
          • SHA256 ca84767d9727c32b06132f67a716c8c6d994ad483180d006e63ab62247b5dcc4
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d65a3ebd9ec8b8a0)\user.config
          • Size 882B
          • SHA256 0ac3f286c6f4a15e2274a381d81025205935da001a46cb18a4312d9721b7d240
          • MD5 SHA1 SHA512 TLSH

          xpwvuohm.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (d65a3ebd9ec8b8a0)\xpwvuohm.newcfg
          • Size 882B
          • SHA256 1098688be2ce14961cbe4897d56180ca5ae07e093fced9abd41016b2a18d8714
          • MD5 SHA1 SHA512 TLSH

          {30a27817-b7c4-4bed-8bcc-976cec88ef04}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{30a27817-b7c4-4bed-8bcc-976cec88ef04}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 bf0783e4efbd14b915607d9cb27737cdf8f2036e97e414d0e3781b4805051ec8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1928-222-0x000000001C3E0000-0x000000001C568000-memory.dmp

          memory/1928-218-0x0000000003150000-0x00000000031BC000-memory.dmp

          memory/1928-217-0x0000000000DF0000-0x0000000000E9E000-memory.dmp

          memory/1928-219-0x000000001BE50000-0x000000001BEE4000-memory.dmp

          memory/1928-220-0x000000001C0A0000-0x000000001C250000-memory.dmp

          memory/1928-221-0x0000000002FE0000-0x0000000002FFA000-memory.dmp

          memory/3372-5-0x0000000075070000-0x000000007582C000-memory.dmp

          memory/3372-6-0x00000000058F0000-0x0000000005AA0000-memory.dmp

          memory/3372-7-0x0000000075070000-0x000000007582C000-memory.dmp

          memory/3372-8-0x0000000006060000-0x000000000661A000-memory.dmp

          memory/3372-13-0x0000000075070000-0x000000007582C000-memory.dmp

          memory/3372-3-0x0000000005760000-0x00000000057F4000-memory.dmp

          memory/3372-0-0x0000000075082000-0x0000000075083000-memory.dmp

          memory/3372-4-0x00000000057F0000-0x0000000005818000-memory.dmp

          memory/3372-9-0x0000000075070000-0x000000007582C000-memory.dmp

          memory/3372-2-0x0000000001880000-0x000000000188C000-memory.dmp

          memory/3372-1-0x00000000009E0000-0x00000000009E8000-memory.dmp

          memory/3372-11-0x0000000075070000-0x000000007582C000-memory.dmp

          memory/3752-75-0x0000000005200000-0x0000000005228000-memory.dmp

          memory/4684-33-0x00000000058F0000-0x000000000591E000-memory.dmp

          memory/4684-41-0x0000000005A30000-0x0000000005AC4000-memory.dmp

          memory/4684-37-0x00000000058E0000-0x00000000058EC000-memory.dmp

          memory/4684-45-0x0000000005C80000-0x0000000005E30000-memory.dmp

          memory/5140-163-0x0000000004310000-0x00000000044C0000-memory.dmp

          memory/5140-198-0x0000000004750000-0x0000000004826000-memory.dmp

          memory/5140-159-0x0000000004010000-0x00000000040A4000-memory.dmp

          memory/5140-153-0x00000000019F0000-0x0000000001A0A000-memory.dmp

          memory/5140-196-0x00000000041B0000-0x00000000041F1000-memory.dmp

          memory/5140-193-0x0000000004220000-0x000000000428C000-memory.dmp

          memory/5140-194-0x0000000004560000-0x00000000045F2000-memory.dmp

          memory/5140-176-0x0000000004160000-0x00000000041B0000-memory.dmp