Analysis

  • max time kernel
    148s
  • max time network
    119s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/08/2026, 10:15

General

  • Target
    ScreenConnectSetup.exe
  • Size 4.7MB
  • Sample260820-l984favbnd
  • SHA256 f441d8c38bd0161b00a765fe08101e26928ca7fcb7547e16f6bdfddefb780770
  • 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 4 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 4 IoCs
  • Loads dropped DLL 22 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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 20 IoCs
  • Drops file in Windows directory 17 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Inno Setup is an open-source installation builder for Windows applications. 3 IoCs

    Inno Setup installer

  • 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 8 IoCs
  • Suspicious use of SendNotifyMessage 5 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\ScreenConnectSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\ScreenConnectSetup.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4448
    • C:\Users\Admin\AppData\Local\Temp\is-MT5UJJTJAD.tmp\ScreenConnectSetup.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-MT5UJJTJAD.tmp\ScreenConnectSetup.tmp" /SL5="$40116,3687059,893952,C:\Users\Admin\AppData\Local\Temp\ScreenConnectSetup.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:684
      • C:\Windows\SysWOW64\msiexec.exe
        "msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\is-DLAMN9UNZY.tmp\ScreenConnect.ClientSetup.msi"
        3⤵
        • Enumerates connected drives
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        PID:4572
  • 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:5928
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E15F07217C7511F2A58117E5E3934611 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1628
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI381.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240714796 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1488
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:5804
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 5A34CBAF011675D853D00CAD2BA0674D
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2468
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 0C200120602DDCD0C3CF7B7FF38500E9 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5072
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:6128
    • C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=82.21.185.95&p=8041&s=aad1d1e0-42b3-4528-9fb9-09d5d544e3b7&k=BgIAAACkAABSU0ExAAgAAAEAAQC14Pvo8IimXAd%2bqMoBClkrxUZpilcJ8W5aJVCopI6Ul5pLHZGEYmoujofE47LpOSpNhO4WvjJPSDA5308OHPubGAD8rMeUtOedIKsHWUu5%2bAqcrGBf8SenwE05sm5XAInOoaF%2bsQUjBmadbRCM%2f0NTDPKA%2bHQF2L574JkXoau%2bev92JUAIHO0Jb46lHXsQhSKmLFra7v9yrUfl6Rar7c2bXALfIXUuP6QKU4m%2bsc9UhrSCiK0h9tyA4gRVcmnynvsV7kkTyrCz2lD8PybqoM0yLG%2fbNWH7bYarGqiWe57bt3iPpe0EY5Zoupb0h5u7wMftIZr72h%2bOhmF1VVMh4NTm"
      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:4352
      • C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\ScreenConnect.WindowsClient.exe" "RunRole" "6c153f52-c0f5-406e-ba1a-bc07dc6dac02" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5116
      • C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\ScreenConnect.WindowsClient.exe" "RunRole" "63c0e922-1491-41c7-b8b6-36a2e46fc7a9" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5736

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59697f.rbs

          • Path C:\Config.Msi\e59697f.rbs
          • Size 214KB
          • SHA256 51876696b6d67dd9873e4f6b9607ce94ef2fe66d571b702772f89e940ad16269
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\Client.en-US.resources
          • Size 48KB
          • SHA256 6a000a67799a071883b6e25f86d91c2c513aae0b34b3643be77e5b889335fb95
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\Client.resources
          • Size 28KB
          • SHA256 95b299c8c163731707e8134946059a28c668c2b65b48f57eac2847dbe4beb63e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\ScreenConnect.Client.dll
          • Size 192KB
          • SHA256 6526705b685c2f221a6675118c73cba98c47d948169d81ea4544c3e3336b8f2b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\ScreenConnect.ClientService.dll
          • Size 66KB
          • SHA256 319ba24115e64ea4b714caf4e88d3d5a658defd51d714c2291b9758466925281
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 f048400c23add8c75abe189393d33c873c02c74eeaf43d47b950c8d643763b35
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\ScreenConnect.WindowsClient.exe
          • Size 593KB
          • SHA256 b80d07610b81bddb3d7f30a207a2e134b559e06b8440598a926f3a9c1d439218
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 36ad3b4858ee84fd2a73522a9ad25d177f492a65e1cbc6630169dc820dc2b63d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          app.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\app.config
          • Size 508B
          • SHA256 779c074d07a35de132ade25762da935077cf6a7da2c3812cc4f432d5dad73394
          • MD5 SHA1 SHA512 TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (e8503caab65bdab5)\system.config
          • Size 936B
          • SHA256 32de590655198bd61622a3499396bdb93cf999268aa1bdbbeb3397c19c1986db
          • MD5 SHA1 SHA512 TLSH

          MSI381.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI381.tmp
          • Size 1.0MB
          • SHA256 a45ba86c5d13aa8e814e4cb0860b5b2a39ce9677b0d980947f6fe31676051cb2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI381.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI381.tmp-\ScreenConnect.Core.dll
          • Size 538KB
          • SHA256 b8100e5ab07983cbf82d721cf719576ca3f60e352628dcaabd42d428011fdedf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI381.tmp-\ScreenConnect.InstallerActions.dll
          • Size 11KB
          • SHA256 c79a22accadb1f8a716669ca68c6d6f4e9a21c0d639e2846f288b60bc8adc770
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI381.tmp-\ScreenConnect.Windows.dll
          • Size 1.6MB
          • SHA256 da29455a64858fda773319c32c0a6cd40edbe8042ed005aa2befb8a4f0fb0522
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\is-DLAMN9UNZY.tmp\ScreenConnect.ClientSetup.msi
          • Size 9.5MB
          • SHA256 b8d5562fc5734a186492c99ea984b2ac932cd4a2b1613fb3c375c2538108b562
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnectSetup.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\is-MT5UJJTJAD.tmp\ScreenConnectSetup.tmp
          • Size 4.2MB
          • SHA256 b34f4bd06cd802ceaaf96529a4c87666901f8383ef125e6f8fe7a184819a34df
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI6FD8.tmp

          • Path C:\Windows\Installer\MSI6FD8.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 36fcae7c7732aa94849e67a299f24446f241173b32f34bddcc5c289517302233
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {6df68dec-23be-4aff-993f-23019abcd0f3}_OnDiskSnapshotProp

          • Path \??\Volume{c576ab2f-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{6df68dec-23be-4aff-993f-23019abcd0f3}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 6968e79ba784ab9eb5e1782942cb6f26a13ab83a0e2e9ee137c49ba8ff641ffa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/684-57-0x0000000000D10000-0x000000000115C000-memory.dmp

          memory/684-62-0x0000000000D10000-0x000000000115C000-memory.dmp

          memory/684-55-0x0000000000D10000-0x000000000115C000-memory.dmp

          memory/684-9-0x0000000000D10000-0x000000000115C000-memory.dmp

          memory/684-121-0x0000000000D10000-0x000000000115C000-memory.dmp

          memory/684-6-0x0000000001CF0000-0x0000000001CF1000-memory.dmp

          memory/684-10-0x0000000001CF0000-0x0000000001CF1000-memory.dmp

          memory/1488-36-0x0000000004010000-0x000000000403E000-memory.dmp

          memory/1488-40-0x0000000004050000-0x000000000405A000-memory.dmp

          memory/1488-49-0x0000000006B00000-0x00000000070BA000-memory.dmp

          memory/1488-48-0x0000000006390000-0x000000000653C000-memory.dmp

          memory/1488-44-0x0000000006150000-0x00000000061DC000-memory.dmp

          memory/4352-124-0x0000000003D20000-0x0000000003D56000-memory.dmp

          memory/4352-129-0x00000000041C0000-0x0000000004295000-memory.dmp

          memory/4352-125-0x0000000003FD0000-0x0000000004062000-memory.dmp

          memory/4352-119-0x0000000003CD0000-0x0000000003D20000-memory.dmp

          memory/4352-127-0x0000000003F30000-0x0000000003F71000-memory.dmp

          memory/4352-97-0x0000000001520000-0x0000000001538000-memory.dmp

          memory/4448-0-0x0000000000E70000-0x0000000000F59000-memory.dmp

          memory/4448-8-0x0000000000E70000-0x0000000000F59000-memory.dmp

          memory/4448-134-0x0000000000E70000-0x0000000000F59000-memory.dmp

          memory/5116-138-0x00000000007C0000-0x0000000000858000-memory.dmp

          memory/5116-141-0x000000001BB20000-0x000000001BCCC000-memory.dmp

          memory/5116-142-0x000000001BE60000-0x000000001BFE8000-memory.dmp

          memory/5116-144-0x00000000029E0000-0x00000000029F8000-memory.dmp

          memory/5116-143-0x0000000002980000-0x0000000002998000-memory.dmp

          memory/5116-140-0x000000001B7E0000-0x000000001B86C000-memory.dmp

          memory/5116-139-0x0000000002A00000-0x0000000002A36000-memory.dmp