Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/07/2026, 18:24

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260723-w2jtpavcla
  • SHA256 ca5531752f7e81ea9847899f31b55e0a0ed4f0c536add01adf8f9d0905738ce8
  • 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 15 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 8 IoCs
  • Suspicious use of SendNotifyMessage 6 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:5584
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\51e3443564583f14\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:704
  • 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:6108
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0DD19DD0F8E258366A33D1F7A5613A7B C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2624
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSICD68.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240766468 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1872
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID24B.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240767609 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4976
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSID8D4.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240769281 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3136
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4676
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding CA0B58EE195DE5C4FA25C88D834227A7
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2112
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 1291693754E3C3985D5C5ADE77E1F5A2 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1832
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1264
    • C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-bnc60d-relay.screenconnect.com&p=443&s=1795f8b8-500a-44a2-922f-f7e1baf42c28&k=BgIAAACkAABSU0ExAAgAAAEAAQDVzc4QP07OZfEyOtMT3wKeeR%2b4EmRY1Yz0yRlY03EtdcGQ2N9QWylI0F9warMb%2fsUOEJFdR1uaOoYt2Cs%2fjKdTESHUPXscxJtHXO87zLnfC%2brtifG23Ps1hXeaxLBk7N93LR9eATSXjj4tgHKbXfuMF8Zsh%2f0TtOv%2fEMbqsMfqhe3C%2bhLQqi7DUzg3uozI3SPOMFYumRJKKfPb20nwsG%2b1Kp9GsRX0Xz2wCM6yGeGgrr85c8ptmHGqCEIfC6yjRoqKuqt0qKPLorKqJ%2biHJ0wgA0YGFtFIIUA3auwCGfCYlMfs6Ua%2bhBYWNnjjGhVc%2fOVWjNyc6o3Itxei2kMv2kbn"
      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:4576
      • C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\ScreenConnect.WindowsClient.exe" "RunRole" "26ee2bca-3344-46ec-800c-4a894e430da2" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4824

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a350c.rbs

          • Path C:\Config.Msi\e5a350c.rbs
          • Size 214KB
          • SHA256 ccdce3655ec47727dfb6704aba7f34e5eb3174abf29693bc8da65f97dfe3b471
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (51e3443564583f14)\system.config
          • Size 966B
          • SHA256 d4b5414a2e745f10084d31919893f20049389e9d3c652ac0a2a31920d36d834f
          • MD5 SHA1 SHA512 TLSH

          MSICD68.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSICD68.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSICD68.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSICD68.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSICD68.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSICD68.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSID24B.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSID24B.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\51e3443564583f14\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 bd40eaa148b8539f5949e0c704ce188d59fcbf11a2b078ac065abdaa17d59d60
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI3BC3.tmp

          • Path C:\Windows\Installer\MSI3BC3.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          cfs0j3hx.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (51e3443564583f14)\cfs0j3hx.newcfg
          • Size 683B
          • SHA256 5af9c11917585725b5678684e4cd9da8bccd6868ce7a3bb7faa249eab368b4de
          • MD5 SHA1 SHA512 TLSH

          dpnwvgcf.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (51e3443564583f14)\dpnwvgcf.newcfg
          • Size 880B
          • SHA256 0a1c4ffe04ec79b1f75729f0bf9f9ab3d916a7c8819f1475b59f092e7f0c033b
          • MD5 SHA1 SHA512 TLSH

          jmymzi4k.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (51e3443564583f14)\jmymzi4k.newcfg
          • Size 880B
          • SHA256 cf5cd18e4922992da250064de6d00a7c8250354957697c9b0a9c6ad2996f17ab
          • MD5 SHA1 SHA512 TLSH

          pogkycni.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (51e3443564583f14)\pogkycni.newcfg
          • Size 880B
          • SHA256 b75abe31ab04b7c0f11ad03968e5e77bcf97f699342890c3eac39ab5c25ada76
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (51e3443564583f14)\user.config
          • Size 520B
          • SHA256 32dcade5db98dd9ee3ca11487ded14f6da6a1147f141a6115d915bdd58808826
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 7b84edeefe0bc3cf9b66efc66e3356ee623953c54324cbf8ba67b20bfd0fd61c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {854a1ddc-58b7-453a-9fde-6585da92538d}_OnDiskSnapshotProp

          • Path \??\Volume{c61f3bad-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{854a1ddc-58b7-453a-9fde-6585da92538d}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 73225531a375b394c12c6466d8e61d6a2e872634d552ef3887b7341429e3df5e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1872-33-0x0000000003970000-0x000000000399E000-memory.dmp

          memory/1872-37-0x00000000039B0000-0x00000000039BC000-memory.dmp

          memory/1872-41-0x0000000005A70000-0x0000000005B04000-memory.dmp

          memory/1872-45-0x0000000005D20000-0x0000000005ED0000-memory.dmp

          memory/4576-166-0x0000000004110000-0x0000000004160000-memory.dmp

          memory/4576-195-0x00000000044A0000-0x0000000004532000-memory.dmp

          memory/4576-152-0x0000000001980000-0x000000000199A000-memory.dmp

          memory/4576-199-0x0000000004690000-0x0000000004766000-memory.dmp

          memory/4576-162-0x0000000004170000-0x0000000004320000-memory.dmp

          memory/4576-158-0x0000000003F20000-0x0000000003FB4000-memory.dmp

          memory/4576-194-0x0000000004390000-0x00000000043FC000-memory.dmp

          memory/4576-197-0x00000000040D0000-0x0000000004111000-memory.dmp

          memory/4824-223-0x000000001C400000-0x000000001C588000-memory.dmp

          memory/4824-224-0x0000000002F80000-0x0000000002FC1000-memory.dmp

          memory/4824-218-0x0000000003100000-0x000000000316C000-memory.dmp

          memory/4824-222-0x0000000002F60000-0x0000000002F7A000-memory.dmp

          memory/4824-221-0x000000001C0C0000-0x000000001C270000-memory.dmp

          memory/4824-220-0x000000001BE70000-0x000000001BF04000-memory.dmp

          memory/4824-217-0x0000000000D70000-0x0000000000E1E000-memory.dmp

          memory/4976-75-0x00000000055A0000-0x00000000055C8000-memory.dmp

          memory/5584-0-0x0000000074682000-0x0000000074683000-memory.dmp

          memory/5584-13-0x0000000074670000-0x0000000074E2C000-memory.dmp

          memory/5584-8-0x0000000006330000-0x00000000068EA000-memory.dmp

          memory/5584-5-0x00000000034E0000-0x0000000003508000-memory.dmp

          memory/5584-1-0x0000000003440000-0x0000000003448000-memory.dmp

          memory/5584-2-0x00000000034B0000-0x00000000034BC000-memory.dmp

          memory/5584-7-0x0000000074670000-0x0000000074E2C000-memory.dmp

          memory/5584-4-0x0000000074670000-0x0000000074E2C000-memory.dmp

          memory/5584-3-0x0000000005AC0000-0x0000000005B54000-memory.dmp

          memory/5584-6-0x0000000005BC0000-0x0000000005D70000-memory.dmp

          memory/5584-11-0x0000000074670000-0x0000000074E2C000-memory.dmp

          memory/5584-9-0x0000000074670000-0x0000000074E2C000-memory.dmp