Analysis

  • max time kernel
    148s
  • 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
    04/08/2026, 16:13

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260804-tpfkdssshy
  • SHA256 fdb6b497b2a941c8cb1de3539a766e812d9676288a6668f90b140794cd4425e0
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 1 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 12 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 3 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.

  • 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 14 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 10 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:4900
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\35e6c255fc70e6b5\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:5772
  • 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:260
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 183A36F620D9F0D76C824DE5976EE3C8 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4724
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI46B4.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240732156 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5036
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI4ADB.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240732921 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5776
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI5220.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240734781 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1132
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4696
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding D793241E804C70315B2232AEDDFB107C
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4700
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 74BF2973215C48369EF35C7A426B32ED E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4232
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3456
    • C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-fysxmg-relay.screenconnect.com&p=443&s=2fed42f8-bb5e-44d7-bd40-33ca94139738&k=BgIAAACkAABSU0ExAAgAAAEAAQBJ5EzMYEr%2fwCk6aKuRr%2bKaG9lfZ4WXrNDtv55MDzprRTLTfzTpVc3mWSC1QXfhIdWNRVgKUm%2fFSyuomHpvzwzCjaMt6ehoLsLJIaNnyo6L8rApjCAu87PeMHq5IUBOWte3ZaYtvgbp3mzNCp3TyfaNWVBHBc9ty24d26PQt709nVlfxW8SeJyIzST%2fZ2%2fQzqPSUA9mE0u2zdnc9wmCzlyVfJimR6WDIc9boA7GQDt0pyp9ovTJKFBslvO1EFYq4MdmEv%2fBbxlhwwFR%2bECzXD%2fT9sVoQn03gFeXWZBLnd7FMg2ZjiKmHdKNCbAxWb99jXtmuMgdrD0nqA3XVGWX9bTD"
      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:2064
      • C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe" "RunRole" "8f2af6b2-21e6-44f0-9b98-125567174605" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5332
      • C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe" "RunRole" "1ae0c086-ebcf-4977-b051-6afddb52a724" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:612

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e59b165.rbs

          • Path C:\Config.Msi\e59b165.rbs
          • Size 214KB
          • SHA256 7a5673d141dddd79f8d4a18cac74ce313e70aee0dc7ef2cd06d93259028a7cd5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 8e5531c2b302f9c95ed32ac7481d3535b6d51147257d317686c07ea1a9cb8362
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.ClientService.dll
          • Size 92KB
          • SHA256 ed32fe0d924959020cbef0534a7ba612e94263ccc74837475f3b5a6a726acad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 16b4c273a25526e7262716ebe9d46480962347191a034595f18be740d9ce1e17
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.Core.dll
          • Size 579KB
          • SHA256 f64cb7ab5f105c22348a22e02dd506ff45456884639fee0f322862112860af24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 c50d6e8d93ed197dd0cfb647743b42a2a6a9289f6db04092f56cefd6d569663e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe
          • Size 678KB
          • SHA256 2ad8f126461607aad3fa31a41f1f39bc74f471fd84191b43e205610db2c4cf09
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 4868b7997b9b4260be2df752a81a750388243cdbea37e4d82a9e0101cd29d0c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (35e6c255fc70e6b5)\system.config
          • Size 960B
          • SHA256 113211775b09c367cc91cfa82021358401f128edbb3599ccb9a17f4d66fe95e8
          • MD5 SHA1 SHA512 TLSH

          MSI46B4.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI46B4.tmp
          • Size 1.1MB
          • SHA256 de867af8055f81b7691f12175deb4c4e7f3bf97130e51761ed02182b0496e16f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI46B4.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI46B4.tmp-\ScreenConnect.Core.dll
          • Size 569KB
          • SHA256 e92d94613443befebb55b08f80d10a2fdbfc58233e8dc95cfb4466fde12964f7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI46B4.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 d827d3575ca29f8a40ea5379c7df2b315fc72cbd93451de94e199740594b51bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI46B4.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 320b89343e896a8d2ebf537861d800a9aca88245cc3b5616bb5bea5cc6797fbb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4ADB.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI4ADB.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 dbf379b93127345a83282380aee634d0b70ec731acfeea76617c76e76fdc764f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.5.3.9691\35e6c255fc70e6b5\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 51c196c397a5c4cf1e8002a986069935cb6cf2a01a0d0fe039ccc7bb9dd21f3d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIB8F7.tmp

          • Path C:\Windows\Installer\MSIB8F7.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          3gxduycc.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (35e6c255fc70e6b5)\3gxduycc.newcfg
          • Size 683B
          • SHA256 9ef4fbc809dbad133861d6f65b2c04831b134ef11a5c817b99ccae61e3ba1d64
          • MD5 SHA1 SHA512 TLSH

          izv2g4ae.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (35e6c255fc70e6b5)\izv2g4ae.newcfg
          • Size 878B
          • SHA256 ffad23537392b1928b6eab34bcc0619be5d7bc078bcbb3fb39fd3de59ed2e5d3
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (35e6c255fc70e6b5)\user.config
          • Size 520B
          • SHA256 5c1580e7e4e230f32e8a95cddc53cce59b3fc952b80049fd19b4d93b82444676
          • MD5 SHA1 SHA512 TLSH

          vocvmhgb.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (35e6c255fc70e6b5)\vocvmhgb.newcfg
          • Size 878B
          • SHA256 74c59155dbeb2551ee7c5f85ff521464bacc9c400701d3131a4ed16c1a400385
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 8c1177b5ab3f5dddd6e395068fad624caae09ff42b254ba49d4a5879ed51c986
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {2ba2c4db-2216-4da7-bad5-1cc2b2663e8d}_OnDiskSnapshotProp

          • Path \??\Volume{c61fa831-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{2ba2c4db-2216-4da7-bad5-1cc2b2663e8d}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 124dbed4a45002c17d5ecda11ab664687a6cd14984424176521fb40970dd035a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/612-237-0x0000000002900000-0x0000000002941000-memory.dmp

          memory/2064-150-0x0000000004120000-0x000000000413A000-memory.dmp

          memory/2064-193-0x00000000046C0000-0x0000000004752000-memory.dmp

          memory/2064-156-0x0000000004220000-0x00000000042B4000-memory.dmp

          memory/2064-160-0x0000000004470000-0x0000000004620000-memory.dmp

          memory/2064-195-0x0000000004380000-0x00000000043C1000-memory.dmp

          memory/2064-168-0x0000000004330000-0x0000000004380000-memory.dmp

          memory/2064-192-0x00000000043F0000-0x000000000445C000-memory.dmp

          memory/2064-197-0x00000000048B0000-0x0000000004986000-memory.dmp

          memory/4900-1-0x00000000017C0000-0x00000000017C8000-memory.dmp

          memory/4900-3-0x00000000032D0000-0x0000000003364000-memory.dmp

          memory/4900-8-0x0000000006060000-0x000000000661A000-memory.dmp

          memory/4900-6-0x0000000074690000-0x0000000074E4C000-memory.dmp

          memory/4900-7-0x0000000074690000-0x0000000074E4C000-memory.dmp

          memory/4900-11-0x0000000074690000-0x0000000074E4C000-memory.dmp

          memory/4900-4-0x00000000057C0000-0x00000000057E8000-memory.dmp

          memory/4900-0-0x00000000746A2000-0x00000000746A3000-memory.dmp

          memory/4900-2-0x00000000017E0000-0x00000000017EC000-memory.dmp

          memory/4900-5-0x00000000058F0000-0x0000000005AA0000-memory.dmp

          memory/5036-39-0x0000000005CE0000-0x0000000005D74000-memory.dmp

          memory/5036-31-0x0000000005B90000-0x0000000005BBE000-memory.dmp

          memory/5036-43-0x0000000005F30000-0x00000000060E0000-memory.dmp

          memory/5036-35-0x0000000005B80000-0x0000000005B8C000-memory.dmp

          memory/5332-215-0x0000000000690000-0x000000000073E000-memory.dmp

          memory/5332-220-0x0000000002770000-0x000000000278A000-memory.dmp

          memory/5332-221-0x000000001BD70000-0x000000001BEF8000-memory.dmp

          memory/5332-219-0x000000001BA30000-0x000000001BBE0000-memory.dmp

          memory/5332-217-0x000000001B7E0000-0x000000001B874000-memory.dmp

          memory/5332-216-0x00000000027E0000-0x000000000284C000-memory.dmp

          memory/5776-73-0x00000000036B0000-0x00000000036D8000-memory.dmp