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
    22/07/2026, 12:20

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260722-phr8ds1vc1
  • SHA256 82af9be86ee0202bc0fd4da255707800b0143229a3a16a558d858321480e655c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 2 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:2096
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\261c1504b1691afc\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Badlisted process makes network request
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:1536
  • 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:252
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 90363249925C2E3B6DBFE9B7B508C7BF C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2640
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIF6F9.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240777062 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:244
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIFAC2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240777953 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4956
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI236.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240779890 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3396
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3392
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding CDDEEC3975A0A5BA232993ECDEA16F78
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4228
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding CAE59F5C6EBAB037FE1966B543B61EA7 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2332
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3864
    • C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-ytslk1-relay.screenconnect.com&p=443&s=2470df45-2c93-4e40-8508-96248d51d580&k=BgIAAACkAABSU0ExAAgAAAEAAQCNPR3%2brM9voroR4bhD%2bwi6VTcdCH4oxrwa12MNgFlSABdCxRX90HbEfVgRN2RVomxTrBVuM4u3LMhU7uyfljNnTFHx26YDXhMDmLuNJQbxgMDBPci86xCE7nns7GNrk4ZA9jkAtaQG5AXq22Tuw%2f4EVpn7HzIctEFNbJtRtuvBJJ9nGluZIwt%2beWsEym%2bT0uAWQTWUSsNcMyFZfW%2f2vqlipWrxYB1hmA3cB%2fjrtlWt6ozpSsf25J0DKmK1xGS7s7kDdX6G9Q4mx7GjHYxCntjuMZI5D2iM2fe2QNnClq7tUtEQLH5mCmIWxEo8aZEVvBMrWJdYWSvpklmRBb7sxXHU"
      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:1952
      • C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\ScreenConnect.WindowsClient.exe" "RunRole" "4cfdfaeb-316d-4d40-8c5b-0b55aa1fbe50" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1644

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e5a4b53.rbs

          • Path C:\Config.Msi\e5a4b53.rbs
          • Size 214KB
          • SHA256 38534403e9c14793eecb67c8113054c97b68887be46adc0f96450bb95fb8d6a9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (261c1504b1691afc)\system.config
          • Size 958B
          • SHA256 20c33ed7d6a6b4332af42181398ddd9d78d5a1baba01953695dcb6882755504b
          • MD5 SHA1 SHA512 TLSH

          MSIF6F9.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF6F9.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF6F9.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF6F9.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF6F9.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIF6F9.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFAC2.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSIFAC2.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\261c1504b1691afc\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 96322f1826f69c522db2af37de8a5899aac34abdaa481732a18a1749167fafe5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI50A3.tmp

          • Path C:\Windows\Installer\MSI50A3.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          blbw5et0.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (261c1504b1691afc)\blbw5et0.newcfg
          • Size 882B
          • SHA256 1c8aa41886e2cb8d92e4a6a637e4aacb7f8987133a4302682b49f64fa6a5a567
          • MD5 SHA1 SHA512 TLSH

          eoaamzwk.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (261c1504b1691afc)\eoaamzwk.newcfg
          • Size 882B
          • SHA256 041d802a2b35e41e09a84988295614f6ad1568a68229823d19f857786a6f59dc
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (261c1504b1691afc)\user.config
          • Size 520B
          • SHA256 07d6c2861b117d83db78993a830a5ef2d720c33ffd2e36f3bece490dc43c2d06
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (261c1504b1691afc)\user.config
          • Size 683B
          • SHA256 a04369e9de1083b1a81b3c7d42f06b8acbbfca89eb2b274bb564a2965d9e71f3
          • MD5 SHA1 SHA512 TLSH

          wrjlukvo.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (261c1504b1691afc)\wrjlukvo.newcfg
          • Size 882B
          • SHA256 658e96886530bfd184e536555195558a87dddbefaadb9ad7da64b90a614b5efa
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 ab1069d26262e4155f094749a84417487dcd543b540c45c319b2ff74029dc28d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {20c0cfc5-f252-49b5-b2dc-0785c96f5037}_OnDiskSnapshotProp

          • Path \??\Volume{cb180e94-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{20c0cfc5-f252-49b5-b2dc-0785c96f5037}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 0a97c5488c976e23e3249c0f0dc4110ebb1894e1f55314122bd78dc4d7b7e580
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/244-34-0x0000000005EA0000-0x0000000005ECE000-memory.dmp

          memory/244-38-0x0000000003E80000-0x0000000003E8C000-memory.dmp

          memory/244-46-0x00000000061C0000-0x0000000006370000-memory.dmp

          memory/244-42-0x0000000005F70000-0x0000000006004000-memory.dmp

          memory/1644-223-0x0000000002BE0000-0x0000000002C21000-memory.dmp

          memory/1644-222-0x000000001C050000-0x000000001C1D8000-memory.dmp

          memory/1644-221-0x0000000002BC0000-0x0000000002BDA000-memory.dmp

          memory/1644-216-0x00000000009E0000-0x0000000000A8E000-memory.dmp

          memory/1644-219-0x000000001BD10000-0x000000001BEC0000-memory.dmp

          memory/1644-217-0x0000000002CE0000-0x0000000002D4C000-memory.dmp

          memory/1644-218-0x000000001BAC0000-0x000000001BB54000-memory.dmp

          memory/1952-182-0x0000000003E90000-0x0000000003EFC000-memory.dmp

          memory/1952-165-0x0000000003DD0000-0x0000000003E20000-memory.dmp

          memory/1952-183-0x0000000004180000-0x0000000004212000-memory.dmp

          memory/1952-159-0x0000000003CE0000-0x0000000003D74000-memory.dmp

          memory/1952-153-0x0000000003B80000-0x0000000003B9A000-memory.dmp

          memory/1952-163-0x0000000003F30000-0x00000000040E0000-memory.dmp

          memory/1952-187-0x0000000004370000-0x0000000004446000-memory.dmp

          memory/1952-185-0x0000000003D90000-0x0000000003DD1000-memory.dmp

          memory/2096-6-0x00000000058C0000-0x0000000005A70000-memory.dmp

          memory/2096-7-0x00000000746A0000-0x0000000074E5C000-memory.dmp

          memory/2096-8-0x0000000006030000-0x00000000065EA000-memory.dmp

          memory/2096-5-0x0000000003330000-0x0000000003358000-memory.dmp

          memory/2096-0-0x00000000746B2000-0x00000000746B3000-memory.dmp

          memory/2096-9-0x00000000746A0000-0x0000000074E5C000-memory.dmp

          memory/2096-12-0x00000000746A0000-0x0000000074E5C000-memory.dmp

          memory/2096-4-0x00000000746A0000-0x0000000074E5C000-memory.dmp

          memory/2096-3-0x0000000005830000-0x00000000058C4000-memory.dmp

          memory/2096-2-0x0000000001990000-0x000000000199C000-memory.dmp

          memory/2096-1-0x0000000001970000-0x0000000001978000-memory.dmp

          memory/4956-76-0x00000000055D0000-0x00000000055F8000-memory.dmp