Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    27/07/2026, 12:33

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 12.2MB
  • Sample260727-prgs1seq2v
  • SHA256 1af0783a883a0bdad3bcf6e8cedd8ef06510ee16ce9df370da1610de96c231e0
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 10 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 13 IoCs
  • Executes dropped EXE 4 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 18 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 11 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⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4608
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.4.3.9662\dd2f44edc35a5713\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
      PID:3488
  • 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 WriteProcessMemory
    PID:4780
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A47570292ABCAAD38FCDE10544DF45EB C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3424
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI146D.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240653593 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1744
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI197F.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240654750 11 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2672
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI2037.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240656562 18 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4580
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3536
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 9BF2C091F0800F5850A757CAB1610CAC
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5076
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding BB71E8697F59EC989EA98C6E680AA7B8 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1200
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3656
    • C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-hbg0fl-relay.screenconnect.com&p=443&s=04c1c045-5e52-4120-a8a7-2972604e948a&k=BgIAAACkAABSU0ExAAgAAAEAAQCRnGvNrGmcQWqj6w4dF3XENvPq%2bOsGm5YbdHfiswSUGYG7RSwhWhcB8zipaY%2fxtdRs2wJDhA2dVIILWVB%2bsiBRiUWD7TMCsUnuQmwaty9P2n9KOMFKVdLxSp7ydiy0%2fHlKUgiYFrDbjXaezYT4wmPSP8iQANm5EOlJ31ArtQxd7bf3cexwdF6gvHHtmltvNEU0accZxPwQBOWlle0F%2ffscsC48cDQATtrMBpLoTiUAWtaWZN1dFAoK743wWDByPQoCE0d%2fmqUhFbT3YLsxl2H8n7%2bSOWzih40SPZYviNm7EUjZrSr5Pa3q030EBuJWCkYUlFqE3Vh%2b9N%2fKSgNjbszx&c=for%20pr%20arem%20file&c=&c=&c=&c=&c=&c=&c="
      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:1048
      • C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsClient.exe" "RunRole" "a0d4e8bc-1ebc-4afe-b9aa-2892fbd30011" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4820
      • C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsClient.exe" "RunRole" "0c6dec42-5d56-4533-b985-2831023333bf" "System"
        2⤵
        • Drops file in System32 directory
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:540
      • C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsClient.exe" "RunRole" "76ada9a8-4ee7-4b22-aded-ab814d78743b" "System"
        2⤵
        • Executes dropped EXE
        • Modifies data under HKEY_USERS
        PID:2804

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e587ad9.rbs

          • Path C:\Config.Msi\e587ad9.rbs
          • Size 214KB
          • SHA256 75a8a1f668f458104f426e3e8b0a9a09877e4faa76ddc486e39427bb3b8d13b6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (dd2f44edc35a5713)\system.config
          • Size 962B
          • SHA256 7d1fd2b732a1c652913a7085e691b69df3973d813022f3ae286f72e0c3db2413
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 e482710d27516766650249885dde7c89f2b9acf7954765f032367f67848ebb6b
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 47f80f263c953cb10e93d3c04f8a5bb7161fdb99542ca6684812a76de7e00c63
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 df26f3e9f5b2b536ecc7628d21e4ef70bbfd099c9ef262fafe60e338e9f7d27d
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 3fac50839ed32effdab8a8fe486f0947f21f41bb640d99780afd551760ad3408
          • MD5 SHA1 SHA512 TLSH

          rundll32.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\rundll32.exe.log
          • Size 746B
          • SHA256 ddebb6b1094dbef9e96754a74ebd4761d857864c9bd0b5f20a97259a6d7c8fe0
          • MD5 SHA1 SHA512 TLSH

          MSI146D.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI146D.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI146D.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI146D.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI146D.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI146D.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI197F.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI197F.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\dd2f44edc35a5713\ScreenConnect.ClientSetup.msi
          • Size 9.8MB
          • SHA256 2129d42bffa4274b520f7d9102147b92893ef27e7fb7bbd650ff384c8fb50e22
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI7D3B.tmp

          • Path C:\Windows\Installer\MSI7D3B.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          lq0vauxy.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (dd2f44edc35a5713)\lq0vauxy.newcfg
          • Size 883B
          • SHA256 0b0af1b4578b9b65f841dc8d1d7cdf5d82cfe5f8a8684babe49d2a48649d82e2
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (dd2f44edc35a5713)\user.config
          • Size 520B
          • SHA256 b16fe343855072704cf94361e993a199f9fa2063323bbca2ef1bc64876945b2d
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (dd2f44edc35a5713)\user.config
          • Size 683B
          • SHA256 dc5323c1dec0f3f9d233b7eb257117933ae1393361115417e8cd7356a8e2c31f
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 40ed22ee0f9840aec401769792d8af8a6a43774568d8a546aac0a77efe6538f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {3044f701-de43-4fe5-8320-76527974f30e}_OnDiskSnapshotProp

          • Path \??\Volume{0dfc9b49-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{3044f701-de43-4fe5-8320-76527974f30e}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 1a7f84b900ce0a08337c0573cac257a65e089aca43234d0f396f3a4ffec20e60
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1048-174-0x0000000004250000-0x00000000042E4000-memory.dmp

          memory/1048-191-0x0000000004350000-0x00000000043A0000-memory.dmp

          memory/1048-166-0x0000000004140000-0x000000000415A000-memory.dmp

          memory/1048-213-0x00000000048D0000-0x00000000049A6000-memory.dmp

          memory/1048-211-0x00000000043A0000-0x00000000043E1000-memory.dmp

          memory/1048-209-0x00000000046F0000-0x0000000004782000-memory.dmp

          memory/1048-208-0x0000000004410000-0x000000000447C000-memory.dmp

          memory/1048-178-0x00000000044A0000-0x0000000004650000-memory.dmp

          memory/1744-49-0x0000000004BB0000-0x0000000004C44000-memory.dmp

          memory/1744-41-0x0000000002760000-0x000000000278E000-memory.dmp

          memory/1744-53-0x0000000004E40000-0x0000000004FF0000-memory.dmp

          memory/1744-45-0x00000000027A0000-0x00000000027AC000-memory.dmp

          memory/2672-85-0x0000000004770000-0x0000000004798000-memory.dmp

          memory/2804-238-0x0000000180000000-0x0000000180055000-memory.dmp

          memory/4608-1-0x0000000001D60000-0x0000000001D68000-memory.dmp

          memory/4608-3-0x0000000001E10000-0x0000000001E1C000-memory.dmp

          memory/4608-0-0x0000000005D60000-0x0000000005D70000-memory.dmp

          memory/4608-6-0x0000000005D70000-0x0000000005F20000-memory.dmp

          memory/4608-2-0x0000000005D60000-0x0000000005D70000-memory.dmp

          memory/4608-5-0x0000000005D10000-0x0000000005D38000-memory.dmp

          memory/4608-7-0x00000000064D0000-0x0000000006A74000-memory.dmp

          memory/4608-8-0x0000000005D60000-0x0000000005D70000-memory.dmp

          memory/4608-4-0x0000000005C80000-0x0000000005D14000-memory.dmp

          memory/4820-228-0x00000000000F0000-0x000000000019E000-memory.dmp

          memory/4820-230-0x000000001B1C0000-0x000000001B254000-memory.dmp

          memory/4820-231-0x000000001B410000-0x000000001B5C0000-memory.dmp

          memory/4820-232-0x0000000000AE0000-0x0000000000AFA000-memory.dmp

          memory/4820-233-0x000000001C3D0000-0x000000001C556000-memory.dmp

          memory/4820-229-0x00000000022B0000-0x000000000231C000-memory.dmp